socket.io - npm Package Compare versions

Comparing version 4.5.2 to 4.5.3

client-dist/socket.io.esm.min.js

 /*!
- * Socket.IO v4.5.2
+ * Socket.IO v4.5.3
  * (c) 2014-2022 Guillermo Rauch
  * Released under the MIT License.
  */
-const t=Object.create(null);t.open="0",t.close="1",t.ping="2",t.pong="3",t.message="4",t.upgrade="5",t.noop="6";const e=Object.create(null);Object.keys(t).forEach((s=>{e[t[s]]=s}));const s={type:"error",data:"parser error"},n="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===Object.prototype.toString.call(Blob),i="function"==typeof ArrayBuffer,r=({type:e,data:s},r,h)=>{return n&&s instanceof Blob?r?h(s):o(s,h):i&&(s instanceof ArrayBuffer||(a=s,"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(a):a&&a.buffer instanceof ArrayBuffer))?r?h(s):o(new Blob([s]),h):h(t[e]+(s||""));var a},o=(t,e)=>{const s=new FileReader;return s.onload=function(){const t=s.result.split(",")[1];e("b"+t)},s.readAsDataURL(t)},h="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",a="undefined"==typeof Uint8Array?[]:new Uint8Array(256);for(let t=0;t<h.length;t++)a[h.charCodeAt(t)]=t;const c="function"==typeof ArrayBuffer,p=(t,n)=>{if("string"!=typeof 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t=0;this.polling&&(t++,this.once("pollComplete",(function(){--t||e()}))),this.writable||(t++,this.once("drain",(function(){--t||e()})))}else e()}poll(){this.polling=!0,this.doPoll(),this.emitReserved("poll")}onData(t){((t,e)=>{const s=t.split(d),n=[];for(let t=0;t<s.length;t++){const i=p(s[t],e);if(n.push(i),"error"===i.type)break}return n})(t,this.socket.binaryType).forEach((t=>{if("opening"===this.readyState&&"open"===t.type&&this.onOpen(),"close"===t.type)return this.onClose({description:"transport closed by the server"}),!1;this.onPacket(t)})),"closed"!==this.readyState&&(this.polling=!1,this.emitReserved("pollComplete"),"open"===this.readyState&&this.poll())}doClose(){const t=()=>{this.write([{type:"close"}])};"open"===this.readyState?t():this.once("open",t)}write(t){this.writable=!1,((t,e)=>{const s=t.length,n=new Array(s);let i=0;t.forEach(((t,o)=>{r(t,!1,(t=>{n[o]=t,++i===s&&e(n.join(d))}))}))})(t,(t=>{this.doWrite(t,(()=>{this.writable=!0,this.emitReserved("drain")}))}))}uri(){let t=this.query||{};const e=this.opts.secure?"https":"http";let s="";!1!==this.opts.timestampRequests&&(t[this.opts.timestampParam]=T()),this.supportsBinary||t.sid||(t.b64=1),this.opts.port&&("https"===e&&443!==Number(this.opts.port)||"http"===e&&80!==Number(this.opts.port))&&(s=":"+this.opts.port);const n=B(t);return e+"://"+(-1!==this.opts.hostname.indexOf(":")?"["+this.opts.hostname+"]":this.opts.hostname)+s+this.opts.path+(n.length?"?"+n:"")}request(t={}){return Object.assign(t,{xd:this.xd,xs:this.xs},this.opts),new j(this.uri(),t)}doWrite(t,e){const s=this.request({method:"POST",data:t});s.on("success",e),s.on("error",((t,e)=>{this.onError("xhr post error",t,e)}))}doPoll(){const t=this.request();t.on("data",this.onData.bind(this)),t.on("error",((t,e)=>{this.onError("xhr poll error",t,e)})),this.pollXhr=t}}},U=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,V=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function H(t){const e=t,s=t.indexOf("["),n=t.indexOf("]");-1!=s&&-1!=n&&(t=t.substring(0,s)+t.substring(s,n).replace(/:/g,";")+t.substring(n,t.length));let i=U.exec(t||""),r={},o=14;for(;o--;)r[V[o]]=i[o]||"";return-1!=s&&-1!=n&&(r.source=e,r.host=r.host.substring(1,r.host.length-1).replace(/;/g,":"),r.authority=r.authority.replace("[","").replace("]","").replace(/;/g,":"),r.ipv6uri=!0),r.pathNames=function(t,e){const s=/\/{2,9}/g,n=e.replace(s,"/").split("/");"/"!=e.substr(0,1)&&0!==e.length||n.splice(0,1);"/"==e.substr(e.length-1,1)&&n.splice(n.length-1,1);return n}(0,r.path),r.queryKey=function(t,e){const s={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(s[e]=n)})),s}(0,r.query),r}class K extends f{constructor(t,e={}){super(),t&&"object"==typeof t&&(e=t,t=null),t?(t=H(t),e.hostname=t.host,e.secure="https"===t.protocol||"wss"===t.protocol,e.port=t.port,t.query&&(e.query=t.query)):e.host&&(e.hostname=H(e.host).host),v(this,e),this.secure=null!=e.secure?e.secure:"undefined"!=typeof location&&"https:"===location.protocol,e.hostname&&!e.port&&(e.port=this.secure?"443":"80"),this.hostname=e.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=e.port||("undefined"!=typeof location&&location.port?location.port:this.secure?"443":"80"),this.transports=e.transports||["polling","websocket"],this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.opts=Object.assign({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!0},e),this.opts.path=this.opts.path.replace(/\/$/,"")+"/","string"==typeof this.opts.query&&(this.opts.query=function(t){let e={},s=t.split("&");for(let t=0,n=s.length;t<n;t++){let n=s[t].split("=");e[decodeURIComponent(n[0])]=decodeURIComponent(n[1])}return e}(this.opts.query)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingTimeoutTimer=null,"function"==typeof addEventListener&&(this.opts.closeOnBeforeunload&&addEventListener("beforeunload",(()=>{this.transport&&(this.transport.removeAllListeners(),this.transport.close())}),!1),"localhost"!==this.hostname&&(this.offlineEventListener=()=>{this.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",this.offlineEventListener,!1))),this.open()}createTransport(t){const e=Object.assign({},this.opts.query);e.EIO=4,e.transport=t,this.id&&(e.sid=this.id);const s=Object.assign({},this.opts.transportOptions[t],this.opts,{query:e,socket:this,hostname:this.hostname,secure:this.secure,port:this.port});return new M[t](s)}open(){let t;if(this.opts.rememberUpgrade&&K.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length)return void this.setTimeoutFn((()=>{this.emitReserved("error","No transports available")}),0);t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)}setTransport(t){this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",(t=>this.onClose("transport close",t)))}probe(t){let e=this.createTransport(t),s=!1;K.priorWebsocketSuccess=!1;const n=()=>{s||(e.send([{type:"ping",data:"probe"}]),e.once("packet",(t=>{if(!s)if("pong"===t.type&&"probe"===t.data){if(this.upgrading=!0,this.emitReserved("upgrading",e),!e)return;K.priorWebsocketSuccess="websocket"===e.name,this.transport.pause((()=>{s||"closed"!==this.readyState&&(c(),this.setTransport(e),e.send([{type:"upgrade"}]),this.emitReserved("upgrade",e),e=null,this.upgrading=!1,this.flush())}))}else{const t=new Error("probe error");t.transport=e.name,this.emitReserved("upgradeError",t)}})))};function i(){s||(s=!0,c(),e.close(),e=null)}const r=t=>{const s=new Error("probe error: "+t);s.transport=e.name,i(),this.emitReserved("upgradeError",s)};function o(){r("transport closed")}function h(){r("socket closed")}function a(t){e&&t.name!==e.name&&i()}const c=()=>{e.removeListener("open",n),e.removeListener("error",r),e.removeListener("close",o),this.off("close",h),this.off("upgrading",a)};e.once("open",n),e.once("error",r),e.once("close",o),this.once("close",h),this.once("upgrading",a),e.open()}onOpen(){if(this.readyState="open",K.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause){let t=0;const e=this.upgrades.length;for(;t<e;t++)this.probe(this.upgrades[t])}}onPacket(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":const e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}}onHandshake(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.maxPayload=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}resetPingTimeout(){this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((()=>{this.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}onDrain(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}flush(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){const t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}getWritablePackets(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;let t=1;for(let s=0;s<this.writeBuffer.length;s++){const n=this.writeBuffer[s].data;if(n&&(t+="string"==typeof(e=n)?function(t){let e=0,s=0;for(let n=0,i=t.length;n<i;n++)e=t.charCodeAt(n),e<128?s+=1:e<2048?s+=2:e<55296||e>=57344?s+=3:(n++,s+=4);return s}(e):Math.ceil(1.33*(e.byteLength||e.size))),s>0&&t>this.maxPayload)return this.writeBuffer.slice(0,s);t+=2}var e;return this.writeBuffer}write(t,e,s){return this.sendPacket("message",t,e,s),this}send(t,e,s){return this.sendPacket("message",t,e,s),this}sendPacket(t,e,s,n){if("function"==typeof e&&(n=e,e=void 0),"function"==typeof s&&(n=s,s=null),"closing"===this.readyState||"closed"===this.readyState)return;(s=s||{}).compress=!1!==s.compress;const i={type:t,data:e,options:s};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),n&&this.once("flush",n),this.flush()}close(){const t=()=>{this.onClose("forced close"),this.transport.close()},e=()=>{this.off("upgrade",e),this.off("upgradeError",e),t()},s=()=>{this.once("upgrade",e),this.once("upgradeError",e)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(()=>{this.upgrading?s():t()})):this.upgrading?s():t()),this}onError(t){K.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}onClose(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&removeEventListener("offline",this.offlineEventListener,!1),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}filterUpgrades(t){const e=[];let s=0;const n=t.length;for(;s<n;s++)~this.transports.indexOf(t[s])&&e.push(t[s]);return e}}K.protocol=4;const Y="function"==typeof ArrayBuffer,z=Object.prototype.toString,W="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===z.call(Blob),$="function"==typeof File||"undefined"!=typeof File&&"[object FileConstructor]"===z.call(File);function J(t){return Y&&(t instanceof ArrayBuffer||(t=>"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):t.buffer instanceof ArrayBuffer)(t))||W&&t instanceof Blob||$&&t instanceof File}function X(t,e){if(!t||"object"!=typeof t)return!1;if(Array.isArray(t)){for(let e=0,s=t.length;e<s;e++)if(X(t[e]))return!0;return!1}if(J(t))return!0;if(t.toJSON&&"function"==typeof t.toJSON&&1===arguments.length)return X(t.toJSON(),!0);for(const e in t)if(Object.prototype.hasOwnProperty.call(t,e)&&X(t[e]))return!0;return!1}function G(t){const e=[],s=t.data,n=t;return n.data=Q(s,e),n.attachments=e.length,{packet:n,buffers:e}}function Q(t,e){if(!t)return t;if(J(t)){const s={_placeholder:!0,num:e.length};return e.push(t),s}if(Array.isArray(t)){const s=new Array(t.length);for(let n=0;n<t.length;n++)s[n]=Q(t[n],e);return s}if("object"==typeof t&&!(t instanceof Date)){const s={};for(const n in t)Object.prototype.hasOwnProperty.call(t,n)&&(s[n]=Q(t[n],e));return s}return t}function Z(t,e){return t.data=tt(t.data,e),t.attachments=void 0,t}function tt(t,e){if(!t)return t;if(t&&t._placeholder)return e[t.num];if(Array.isArray(t))for(let s=0;s<t.length;s++)t[s]=tt(t[s],e);else if("object"==typeof t)for(const s in t)Object.prototype.hasOwnProperty.call(t,s)&&(t[s]=tt(t[s],e));return t}const et=5;var st;!function(t){t[t.CONNECT=0]="CONNECT",t[t.DISCONNECT=1]="DISCONNECT",t[t.EVENT=2]="EVENT",t[t.ACK=3]="ACK",t[t.CONNECT_ERROR=4]="CONNECT_ERROR",t[t.BINARY_EVENT=5]="BINARY_EVENT",t[t.BINARY_ACK=6]="BINARY_ACK"}(st||(st={}));class nt extends f{constructor(t){super(),this.reviver=t}add(t){let e;if("string"==typeof t)e=this.decodeString(t),e.type===st.BINARY_EVENT||e.type===st.BINARY_ACK?(this.reconstructor=new it(e),0===e.attachments&&super.emitReserved("decoded",e)):super.emitReserved("decoded",e);else{if(!J(t)&&!t.base64)throw new Error("Unknown type: "+t);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");e=this.reconstructor.takeBinaryData(t),e&&(this.reconstructor=null,super.emitReserved("decoded",e))}}decodeString(t){let e=0;const s={type:Number(t.charAt(0))};if(void 0===st[s.type])throw new Error("unknown packet type "+s.type);if(s.type===st.BINARY_EVENT||s.type===st.BINARY_ACK){const n=e+1;for(;"-"!==t.charAt(++e)&&e!=t.length;);const i=t.substring(n,e);if(i!=Number(i)||"-"!==t.charAt(e))throw new Error("Illegal attachments");s.attachments=Number(i)}if("/"===t.charAt(e+1)){const n=e+1;for(;++e;){if(","===t.charAt(e))break;if(e===t.length)break}s.nsp=t.substring(n,e)}else s.nsp="/";const n=t.charAt(e+1);if(""!==n&&Number(n)==n){const n=e+1;for(;++e;){const s=t.charAt(e);if(null==s||Number(s)!=s){--e;break}if(e===t.length)break}s.id=Number(t.substring(n,e+1))}if(t.charAt(++e)){const n=this.tryParse(t.substr(e));if(!nt.isPayloadValid(s.type,n))throw new Error("invalid payload");s.data=n}return s}tryParse(t){try{return JSON.parse(t,this.reviver)}catch(t){return!1}}static isPayloadValid(t,e){switch(t){case st.CONNECT:return"object"==typeof e;case st.DISCONNECT:return void 0===e;case st.CONNECT_ERROR:return"string"==typeof e||"object"==typeof e;case st.EVENT:case st.BINARY_EVENT:return Array.isArray(e)&&e.length>0;case st.ACK:case st.BINARY_ACK:return Array.isArray(e)}}destroy(){this.reconstructor&&this.reconstructor.finishedReconstruction()}}class it{constructor(t){this.packet=t,this.buffers=[],this.reconPack=t}takeBinaryData(t){if(this.buffers.push(t),this.buffers.length===this.reconPack.attachments){const t=Z(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}}var rt=Object.freeze({__proto__:null,protocol:5,get PacketType(){return st},Encoder:class{constructor(t){this.replacer=t}encode(t){return t.type!==st.EVENT&&t.type!==st.ACK||!X(t)?[this.encodeAsString(t)]:(t.type=t.type===st.EVENT?st.BINARY_EVENT:st.BINARY_ACK,this.encodeAsBinary(t))}encodeAsString(t){let e=""+t.type;return t.type!==st.BINARY_EVENT&&t.type!==st.BINARY_ACK||(e+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(e+=t.nsp+","),null!=t.id&&(e+=t.id),null!=t.data&&(e+=JSON.stringify(t.data,this.replacer)),e}encodeAsBinary(t){const e=G(t),s=this.encodeAsString(e.packet),n=e.buffers;return n.unshift(s),n}},Decoder:nt});function ot(t,e,s){return t.on(e,s),function(){t.off(e,s)}}const ht=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1});class at extends f{constructor(t,e,s){super(),this.connected=!1,this.receiveBuffer=[],this.sendBuffer=[],this.ids=0,this.acks={},this.flags={},this.io=t,this.nsp=e,s&&s.auth&&(this.auth=s.auth),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;const t=this.io;this.subs=[ot(t,"open",this.onopen.bind(this)),ot(t,"packet",this.onpacket.bind(this)),ot(t,"error",this.onerror.bind(this)),ot(t,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}open(){return this.connect()}send(...t){return t.unshift("message"),this.emit.apply(this,t),this}emit(t,...e){if(ht.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');e.unshift(t);const s={type:st.EVENT,data:e,options:{}};if(s.options.compress=!1!==this.flags.compress,"function"==typeof e[e.length-1]){const t=this.ids++,n=e.pop();this._registerAckCallback(t,n),s.id=t}const n=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!n||!this.connected)||(this.connected?(this.notifyOutgoingListeners(s),this.packet(s)):this.sendBuffer.push(s)),this.flags={},this}_registerAckCallback(t,e){const s=this.flags.timeout;if(void 0===s)return void(this.acks[t]=e);const n=this.io.setTimeoutFn((()=>{delete this.acks[t];for(let e=0;e<this.sendBuffer.length;e++)this.sendBuffer[e].id===t&&this.sendBuffer.splice(e,1);e.call(this,new Error("operation has timed out"))}),s);this.acks[t]=(...t)=>{this.io.clearTimeoutFn(n),e.apply(this,[null,...t])}}packet(t){t.nsp=this.nsp,this.io._packet(t)}onopen(){"function"==typeof this.auth?this.auth((t=>{this.packet({type:st.CONNECT,data:t})})):this.packet({type:st.CONNECT,data:this.auth})}onerror(t){this.connected||this.emitReserved("connect_error",t)}onclose(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}onpacket(t){if(t.nsp===this.nsp)switch(t.type){case st.CONNECT:if(t.data&&t.data.sid){const e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case st.EVENT:case st.BINARY_EVENT:this.onevent(t);break;case st.ACK:case st.BINARY_ACK:this.onack(t);break;case st.DISCONNECT:this.ondisconnect();break;case st.CONNECT_ERROR:this.destroy();const e=new Error(t.data.message);e.data=t.data.data,this.emitReserved("connect_error",e)}}onevent(t){const e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}emitEvent(t){if(this._anyListeners&&this._anyListeners.length){const e=this._anyListeners.slice();for(const s of e)s.apply(this,t)}super.emit.apply(this,t)}ack(t){const e=this;let s=!1;return function(...n){s||(s=!0,e.packet({type:st.ACK,id:t,data:n}))}}onack(t){const e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}onconnect(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}emitBuffered(){this.receiveBuffer.forEach((t=>this.emitEvent(t))),this.receiveBuffer=[],this.sendBuffer.forEach((t=>{this.notifyOutgoingListeners(t),this.packet(t)})),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach((t=>t())),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:st.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(t){return this.flags.compress=t,this}get volatile(){return this.flags.volatile=!0,this}timeout(t){return this.flags.timeout=t,this}onAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}prependAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}offAny(t){if(!this._anyListeners)return this;if(t){const e=this._anyListeners;for(let s=0;s<e.length;s++)if(t===e[s])return e.splice(s,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}prependAnyOutgoing(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}offAnyOutgoing(t){if(!this._anyOutgoingListeners)return this;if(t){const e=this._anyOutgoingListeners;for(let s=0;s<e.length;s++)if(t===e[s])return e.splice(s,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){const e=this._anyOutgoingListeners.slice();for(const s of e)s.apply(this,t.data)}}}function ct(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}ct.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),s=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-s:t+s}return 0|Math.min(t,this.max)},ct.prototype.reset=function(){this.attempts=0},ct.prototype.setMin=function(t){this.ms=t},ct.prototype.setMax=function(t){this.max=t},ct.prototype.setJitter=function(t){this.jitter=t};class pt extends f{constructor(t,e){var s;super(),this.nsps={},this.subs=[],t&&"object"==typeof t&&(e=t,t=void 0),(e=e||{}).path=e.path||"/socket.io",this.opts=e,v(this,e),this.reconnection(!1!==e.reconnection),this.reconnectionAttempts(e.reconnectionAttempts||1/0),this.reconnectionDelay(e.reconnectionDelay||1e3),this.reconnectionDelayMax(e.reconnectionDelayMax||5e3),this.randomizationFactor(null!==(s=e.randomizationFactor)&&void 0!==s?s:.5),this.backoff=new ct({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(null==e.timeout?2e4:e.timeout),this._readyState="closed",this.uri=t;const n=e.parser||rt;this.encoder=new n.Encoder,this.decoder=new n.Decoder,this._autoConnect=!1!==e.autoConnect,this._autoConnect&&this.open()}reconnection(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}reconnectionAttempts(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}reconnectionDelay(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}randomizationFactor(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}reconnectionDelayMax(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}timeout(t){return arguments.length?(this._timeout=t,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}open(t){if(~this._readyState.indexOf("open"))return this;this.engine=new K(this.uri,this.opts);const e=this.engine,s=this;this._readyState="opening",this.skipReconnect=!1;const n=ot(e,"open",(function(){s.onopen(),t&&t()})),i=ot(e,"error",(e=>{s.cleanup(),s._readyState="closed",this.emitReserved("error",e),t?t(e):s.maybeReconnectOnOpen()}));if(!1!==this._timeout){const t=this._timeout;0===t&&n();const s=this.setTimeoutFn((()=>{n(),e.close(),e.emit("error",new Error("timeout"))}),t);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}return this.subs.push(n),this.subs.push(i),this}connect(t){return this.open(t)}onopen(){this.cleanup(),this._readyState="open",this.emitReserved("open");const t=this.engine;this.subs.push(ot(t,"ping",this.onping.bind(this)),ot(t,"data",this.ondata.bind(this)),ot(t,"error",this.onerror.bind(this)),ot(t,"close",this.onclose.bind(this)),ot(this.decoder,"decoded",this.ondecoded.bind(this)))}onping(){this.emitReserved("ping")}ondata(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error")}}ondecoded(t){this.emitReserved("packet",t)}onerror(t){this.emitReserved("error",t)}socket(t,e){let s=this.nsps[t];return s||(s=new at(this,t,e),this.nsps[t]=s),s}_destroy(t){const e=Object.keys(this.nsps);for(const t of e){if(this.nsps[t].active)return}this._close()}_packet(t){const e=this.encoder.encode(t);for(let s=0;s<e.length;s++)this.engine.write(e[s],t.options)}cleanup(){this.subs.forEach((t=>t())),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(t,e){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t,e),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;const t=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{const e=this.backoff.duration();this._reconnecting=!0;const s=this.setTimeoutFn((()=>{t.skipReconnect||(this.emitReserved("reconnect_attempt",t.backoff.attempts),t.skipReconnect||t.open((e=>{e?(t._reconnecting=!1,t.reconnect(),this.emitReserved("reconnect_error",e)):t.onreconnect()})))}),e);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}}onreconnect(){const t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}const ut={};function lt(t,e){"object"==typeof t&&(e=t,t=void 0);const s=function(t,e="",s){let n=t;s=s||"undefined"!=typeof location&&location,null==t&&(t=s.protocol+"//"+s.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?s.protocol+t:s.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 0!==s?s.protocol+"//"+t:"https://"+t),n=H(t)),n.port||(/^(http|ws)$/.test(n.protocol)?n.port="80":/^(http|ws)s$/.test(n.protocol)&&(n.port="443")),n.path=n.path||"/";const i=-1!==n.host.indexOf(":")?"["+n.host+"]":n.host;return n.id=n.protocol+"://"+i+":"+n.port+e,n.href=n.protocol+"://"+i+(s&&s.port===n.port?"":":"+n.port),n}(t,(e=e||{}).path||"/socket.io"),n=s.source,i=s.id,r=s.path,o=ut[i]&&r in ut[i].nsps;let h;return e.forceNew||e["force new connection"]||!1===e.multiplex||o?h=new pt(n,e):(ut[i]||(ut[i]=new pt(n,e)),h=ut[i]),s.query&&!e.query&&(e.query=s.queryKey),h.socket(s.path,e)}Object.assign(lt,{Manager:pt,Socket:at,io:lt,connect:lt});export{pt as Manager,at as Socket,lt as connect,lt as default,lt as io,et as protocol};
+const t=Object.create(null);t.open="0",t.close="1",t.ping="2",t.pong="3",t.message="4",t.upgrade="5",t.noop="6";const e=Object.create(null);Object.keys(t).forEach((s=>{e[t[s]]=s}));const s={type:"error",data:"parser error"},n="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===Object.prototype.toString.call(Blob),i="function"==typeof ArrayBuffer,r=({type:e,data:s},r,h)=>{return n&&s instanceof Blob?r?h(s):o(s,h):i&&(s instanceof ArrayBuffer||(a=s,"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(a):a&&a.buffer instanceof ArrayBuffer))?r?h(s):o(new Blob([s]),h):h(t[e]+(s||""));var a},o=(t,e)=>{const s=new FileReader;return s.onload=function(){const t=s.result.split(",")[1];e("b"+t)},s.readAsDataURL(t)},h="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",a="undefined"==typeof Uint8Array?[]:new Uint8Array(256);for(let t=0;t<h.length;t++)a[h.charCodeAt(t)]=t;const c="function"==typeof ArrayBuffer,p=(t,n)=>{if("string"!=typeof t)return{type:"message",data:l(t,n)};const i=t.charAt(0);if("b"===i)return{type:"message",data:u(t.substring(1),n)};return e[i]?t.length>1?{type:e[i],data:t.substring(1)}:{type:e[i]}:s},u=(t,e)=>{if(c){const s=(t=>{let e,s,n,i,r,o=.75*t.length,h=t.length,c=0;"="===t[t.length-1]&&(o--,"="===t[t.length-2]&&o--);const p=new ArrayBuffer(o),u=new Uint8Array(p);for(e=0;e<h;e+=4)s=a[t.charCodeAt(e)],n=a[t.charCodeAt(e+1)],i=a[t.charCodeAt(e+2)],r=a[t.charCodeAt(e+3)],u[c++]=s<<2|n>>4,u[c++]=(15&n)<<4|i>>2,u[c++]=(3&i)<<6|63&r;return p})(t);return l(s,e)}return{base64:!0,data:t}},l=(t,e)=>"blob"===e&&t instanceof ArrayBuffer?new Blob([t]):t,d=String.fromCharCode(30);function f(t){if(t)return function(t){for(var e in f.prototype)t[e]=f.prototype[e];return t}(t)}f.prototype.on=f.prototype.addEventListener=function(t,e){return this._callbacks=this._callbacks||{},(this._callbacks["$"+t]=this._callbacks["$"+t]||[]).push(e),this},f.prototype.once=function(t,e){function s(){this.off(t,s),e.apply(this,arguments)}return s.fn=e,this.on(t,s),this},f.prototype.off=f.prototype.removeListener=f.prototype.removeAllListeners=f.prototype.removeEventListener=function(t,e){if(this._callbacks=this._callbacks||{},0==arguments.length)return this._callbacks={},this;var s,n=this._callbacks["$"+t];if(!n)return this;if(1==arguments.length)return delete this._callbacks["$"+t],this;for(var i=0;i<n.length;i++)if((s=n[i])===e||s.fn===e){n.splice(i,1);break}return 0===n.length&&delete this._callbacks["$"+t],this},f.prototype.emit=function(t){this._callbacks=this._callbacks||{};for(var e=new Array(arguments.length-1),s=this._callbacks["$"+t],n=1;n<arguments.length;n++)e[n-1]=arguments[n];if(s){n=0;for(var i=(s=s.slice(0)).length;n<i;++n)s[n].apply(this,e)}return this},f.prototype.emitReserved=f.prototype.emit,f.prototype.listeners=function(t){return this._callbacks=this._callbacks||{},this._callbacks["$"+t]||[]},f.prototype.hasListeners=function(t){return!!this.listeners(t).length};const y="undefined"!=typeof self?self:"undefined"!=typeof window?window:Function("return this")();function g(t,...e){return e.reduce(((e,s)=>(t.hasOwnProperty(s)&&(e[s]=t[s]),e)),{})}const m=setTimeout,b=clearTimeout;function v(t,e){e.useNativeTimers?(t.setTimeoutFn=m.bind(y),t.clearTimeoutFn=b.bind(y)):(t.setTimeoutFn=setTimeout.bind(y),t.clearTimeoutFn=clearTimeout.bind(y))}class k extends Error{constructor(t,e,s){super(t),this.description=e,this.context=s,this.type="TransportError"}}class w extends f{constructor(t){super(),this.writable=!1,v(this,t),this.opts=t,this.query=t.query,this.readyState="",this.socket=t.socket}onError(t,e,s){return super.emitReserved("error",new 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n}(0,r.path),r.queryKey=function(t,e){const s={};return e.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(s[e]=n)})),s}(0,r.query),r}class K extends f{constructor(t,e={}){super(),t&&"object"==typeof t&&(e=t,t=null),t?(t=H(t),e.hostname=t.host,e.secure="https"===t.protocol||"wss"===t.protocol,e.port=t.port,t.query&&(e.query=t.query)):e.host&&(e.hostname=H(e.host).host),v(this,e),this.secure=null!=e.secure?e.secure:"undefined"!=typeof location&&"https:"===location.protocol,e.hostname&&!e.port&&(e.port=this.secure?"443":"80"),this.hostname=e.hostname||("undefined"!=typeof location?location.hostname:"localhost"),this.port=e.port||("undefined"!=typeof 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e=0,s=t.length;e<s;e++)if(X(t[e]))return!0;return!1}if(J(t))return!0;if(t.toJSON&&"function"==typeof t.toJSON&&1===arguments.length)return X(t.toJSON(),!0);for(const e in t)if(Object.prototype.hasOwnProperty.call(t,e)&&X(t[e]))return!0;return!1}function G(t){const e=[],s=t.data,n=t;return n.data=Q(s,e),n.attachments=e.length,{packet:n,buffers:e}}function Q(t,e){if(!t)return t;if(J(t)){const s={_placeholder:!0,num:e.length};return e.push(t),s}if(Array.isArray(t)){const s=new Array(t.length);for(let n=0;n<t.length;n++)s[n]=Q(t[n],e);return s}if("object"==typeof t&&!(t instanceof Date)){const s={};for(const n in t)Object.prototype.hasOwnProperty.call(t,n)&&(s[n]=Q(t[n],e));return s}return t}function Z(t,e){return t.data=tt(t.data,e),t.attachments=void 0,t}function tt(t,e){if(!t)return t;if(t&&t._placeholder)return e[t.num];if(Array.isArray(t))for(let s=0;s<t.length;s++)t[s]=tt(t[s],e);else if("object"==typeof t)for(const s in t)Object.prototype.hasOwnProperty.call(t,s)&&(t[s]=tt(t[s],e));return t}const et=5;var st;!function(t){t[t.CONNECT=0]="CONNECT",t[t.DISCONNECT=1]="DISCONNECT",t[t.EVENT=2]="EVENT",t[t.ACK=3]="ACK",t[t.CONNECT_ERROR=4]="CONNECT_ERROR",t[t.BINARY_EVENT=5]="BINARY_EVENT",t[t.BINARY_ACK=6]="BINARY_ACK"}(st||(st={}));class nt extends f{constructor(t){super(),this.reviver=t}add(t){let e;if("string"==typeof t)e=this.decodeString(t),e.type===st.BINARY_EVENT||e.type===st.BINARY_ACK?(this.reconstructor=new it(e),0===e.attachments&&super.emitReserved("decoded",e)):super.emitReserved("decoded",e);else{if(!J(t)&&!t.base64)throw new Error("Unknown type: "+t);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");e=this.reconstructor.takeBinaryData(t),e&&(this.reconstructor=null,super.emitReserved("decoded",e))}}decodeString(t){let e=0;const s={type:Number(t.charAt(0))};if(void 0===st[s.type])throw new Error("unknown packet type "+s.type);if(s.type===st.BINARY_EVENT||s.type===st.BINARY_ACK){const n=e+1;for(;"-"!==t.charAt(++e)&&e!=t.length;);const i=t.substring(n,e);if(i!=Number(i)||"-"!==t.charAt(e))throw new Error("Illegal attachments");s.attachments=Number(i)}if("/"===t.charAt(e+1)){const n=e+1;for(;++e;){if(","===t.charAt(e))break;if(e===t.length)break}s.nsp=t.substring(n,e)}else s.nsp="/";const n=t.charAt(e+1);if(""!==n&&Number(n)==n){const n=e+1;for(;++e;){const s=t.charAt(e);if(null==s||Number(s)!=s){--e;break}if(e===t.length)break}s.id=Number(t.substring(n,e+1))}if(t.charAt(++e)){const n=this.tryParse(t.substr(e));if(!nt.isPayloadValid(s.type,n))throw new Error("invalid payload");s.data=n}return s}tryParse(t){try{return JSON.parse(t,this.reviver)}catch(t){return!1}}static isPayloadValid(t,e){switch(t){case st.CONNECT:return"object"==typeof e;case st.DISCONNECT:return void 0===e;case st.CONNECT_ERROR:return"string"==typeof e||"object"==typeof e;case st.EVENT:case st.BINARY_EVENT:return Array.isArray(e)&&e.length>0;case st.ACK:case st.BINARY_ACK:return Array.isArray(e)}}destroy(){this.reconstructor&&this.reconstructor.finishedReconstruction()}}class it{constructor(t){this.packet=t,this.buffers=[],this.reconPack=t}takeBinaryData(t){if(this.buffers.push(t),this.buffers.length===this.reconPack.attachments){const t=Z(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null}finishedReconstruction(){this.reconPack=null,this.buffers=[]}}var rt=Object.freeze({__proto__:null,protocol:5,get PacketType(){return st},Encoder:class{constructor(t){this.replacer=t}encode(t){return t.type!==st.EVENT&&t.type!==st.ACK||!X(t)?[this.encodeAsString(t)]:(t.type=t.type===st.EVENT?st.BINARY_EVENT:st.BINARY_ACK,this.encodeAsBinary(t))}encodeAsString(t){let e=""+t.type;return t.type!==st.BINARY_EVENT&&t.type!==st.BINARY_ACK||(e+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(e+=t.nsp+","),null!=t.id&&(e+=t.id),null!=t.data&&(e+=JSON.stringify(t.data,this.replacer)),e}encodeAsBinary(t){const e=G(t),s=this.encodeAsString(e.packet),n=e.buffers;return n.unshift(s),n}},Decoder:nt});function ot(t,e,s){return t.on(e,s),function(){t.off(e,s)}}const ht=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1});class at extends f{constructor(t,e,s){super(),this.connected=!1,this.receiveBuffer=[],this.sendBuffer=[],this.ids=0,this.acks={},this.flags={},this.io=t,this.nsp=e,s&&s.auth&&(this.auth=s.auth),this.io._autoConnect&&this.open()}get disconnected(){return!this.connected}subEvents(){if(this.subs)return;const t=this.io;this.subs=[ot(t,"open",this.onopen.bind(this)),ot(t,"packet",this.onpacket.bind(this)),ot(t,"error",this.onerror.bind(this)),ot(t,"close",this.onclose.bind(this))]}get active(){return!!this.subs}connect(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}open(){return this.connect()}send(...t){return t.unshift("message"),this.emit.apply(this,t),this}emit(t,...e){if(ht.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');e.unshift(t);const s={type:st.EVENT,data:e,options:{}};if(s.options.compress=!1!==this.flags.compress,"function"==typeof e[e.length-1]){const t=this.ids++,n=e.pop();this._registerAckCallback(t,n),s.id=t}const n=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable;return this.flags.volatile&&(!n||!this.connected)||(this.connected?(this.notifyOutgoingListeners(s),this.packet(s)):this.sendBuffer.push(s)),this.flags={},this}_registerAckCallback(t,e){const s=this.flags.timeout;if(void 0===s)return void(this.acks[t]=e);const n=this.io.setTimeoutFn((()=>{delete this.acks[t];for(let e=0;e<this.sendBuffer.length;e++)this.sendBuffer[e].id===t&&this.sendBuffer.splice(e,1);e.call(this,new Error("operation has timed out"))}),s);this.acks[t]=(...t)=>{this.io.clearTimeoutFn(n),e.apply(this,[null,...t])}}packet(t){t.nsp=this.nsp,this.io._packet(t)}onopen(){"function"==typeof this.auth?this.auth((t=>{this.packet({type:st.CONNECT,data:t})})):this.packet({type:st.CONNECT,data:this.auth})}onerror(t){this.connected||this.emitReserved("connect_error",t)}onclose(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}onpacket(t){if(t.nsp===this.nsp)switch(t.type){case st.CONNECT:if(t.data&&t.data.sid){const e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case st.EVENT:case st.BINARY_EVENT:this.onevent(t);break;case st.ACK:case st.BINARY_ACK:this.onack(t);break;case st.DISCONNECT:this.ondisconnect();break;case st.CONNECT_ERROR:this.destroy();const e=new Error(t.data.message);e.data=t.data.data,this.emitReserved("connect_error",e)}}onevent(t){const e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}emitEvent(t){if(this._anyListeners&&this._anyListeners.length){const e=this._anyListeners.slice();for(const s of e)s.apply(this,t)}super.emit.apply(this,t)}ack(t){const e=this;let s=!1;return function(...n){s||(s=!0,e.packet({type:st.ACK,id:t,data:n}))}}onack(t){const e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}onconnect(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}emitBuffered(){this.receiveBuffer.forEach((t=>this.emitEvent(t))),this.receiveBuffer=[],this.sendBuffer.forEach((t=>{this.notifyOutgoingListeners(t),this.packet(t)})),this.sendBuffer=[]}ondisconnect(){this.destroy(),this.onclose("io server disconnect")}destroy(){this.subs&&(this.subs.forEach((t=>t())),this.subs=void 0),this.io._destroy(this)}disconnect(){return this.connected&&this.packet({type:st.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}close(){return this.disconnect()}compress(t){return this.flags.compress=t,this}get volatile(){return this.flags.volatile=!0,this}timeout(t){return this.flags.timeout=t,this}onAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}prependAny(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}offAny(t){if(!this._anyListeners)return this;if(t){const e=this._anyListeners;for(let s=0;s<e.length;s++)if(t===e[s])return e.splice(s,1),this}else this._anyListeners=[];return this}listenersAny(){return this._anyListeners||[]}onAnyOutgoing(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}prependAnyOutgoing(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}offAnyOutgoing(t){if(!this._anyOutgoingListeners)return this;if(t){const e=this._anyOutgoingListeners;for(let s=0;s<e.length;s++)if(t===e[s])return e.splice(s,1),this}else this._anyOutgoingListeners=[];return this}listenersAnyOutgoing(){return this._anyOutgoingListeners||[]}notifyOutgoingListeners(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){const e=this._anyOutgoingListeners.slice();for(const s of e)s.apply(this,t.data)}}}function ct(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}ct.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),s=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-s:t+s}return 0|Math.min(t,this.max)},ct.prototype.reset=function(){this.attempts=0},ct.prototype.setMin=function(t){this.ms=t},ct.prototype.setMax=function(t){this.max=t},ct.prototype.setJitter=function(t){this.jitter=t};class pt extends f{constructor(t,e){var s;super(),this.nsps={},this.subs=[],t&&"object"==typeof t&&(e=t,t=void 0),(e=e||{}).path=e.path||"/socket.io",this.opts=e,v(this,e),this.reconnection(!1!==e.reconnection),this.reconnectionAttempts(e.reconnectionAttempts||1/0),this.reconnectionDelay(e.reconnectionDelay||1e3),this.reconnectionDelayMax(e.reconnectionDelayMax||5e3),this.randomizationFactor(null!==(s=e.randomizationFactor)&&void 0!==s?s:.5),this.backoff=new ct({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(null==e.timeout?2e4:e.timeout),this._readyState="closed",this.uri=t;const n=e.parser||rt;this.encoder=new n.Encoder,this.decoder=new n.Decoder,this._autoConnect=!1!==e.autoConnect,this._autoConnect&&this.open()}reconnection(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}reconnectionAttempts(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}reconnectionDelay(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}randomizationFactor(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}reconnectionDelayMax(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}timeout(t){return arguments.length?(this._timeout=t,this):this._timeout}maybeReconnectOnOpen(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}open(t){if(~this._readyState.indexOf("open"))return this;this.engine=new K(this.uri,this.opts);const e=this.engine,s=this;this._readyState="opening",this.skipReconnect=!1;const n=ot(e,"open",(function(){s.onopen(),t&&t()})),i=ot(e,"error",(e=>{s.cleanup(),s._readyState="closed",this.emitReserved("error",e),t?t(e):s.maybeReconnectOnOpen()}));if(!1!==this._timeout){const t=this._timeout;0===t&&n();const s=this.setTimeoutFn((()=>{n(),e.close(),e.emit("error",new Error("timeout"))}),t);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}return this.subs.push(n),this.subs.push(i),this}connect(t){return this.open(t)}onopen(){this.cleanup(),this._readyState="open",this.emitReserved("open");const t=this.engine;this.subs.push(ot(t,"ping",this.onping.bind(this)),ot(t,"data",this.ondata.bind(this)),ot(t,"error",this.onerror.bind(this)),ot(t,"close",this.onclose.bind(this)),ot(this.decoder,"decoded",this.ondecoded.bind(this)))}onping(){this.emitReserved("ping")}ondata(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error",t)}}ondecoded(t){I((()=>{this.emitReserved("packet",t)}),this.setTimeoutFn)}onerror(t){this.emitReserved("error",t)}socket(t,e){let s=this.nsps[t];return s||(s=new at(this,t,e),this.nsps[t]=s),s}_destroy(t){const e=Object.keys(this.nsps);for(const t of e){if(this.nsps[t].active)return}this._close()}_packet(t){const e=this.encoder.encode(t);for(let s=0;s<e.length;s++)this.engine.write(e[s],t.options)}cleanup(){this.subs.forEach((t=>t())),this.subs.length=0,this.decoder.destroy()}_close(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}disconnect(){return this._close()}onclose(t,e){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t,e),this._reconnection&&!this.skipReconnect&&this.reconnect()}reconnect(){if(this._reconnecting||this.skipReconnect)return this;const t=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{const e=this.backoff.duration();this._reconnecting=!0;const s=this.setTimeoutFn((()=>{t.skipReconnect||(this.emitReserved("reconnect_attempt",t.backoff.attempts),t.skipReconnect||t.open((e=>{e?(t._reconnecting=!1,t.reconnect(),this.emitReserved("reconnect_error",e)):t.onreconnect()})))}),e);this.opts.autoUnref&&s.unref(),this.subs.push((function(){clearTimeout(s)}))}}onreconnect(){const t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}const ut={};function lt(t,e){"object"==typeof t&&(e=t,t=void 0);const s=function(t,e="",s){let n=t;s=s||"undefined"!=typeof location&&location,null==t&&(t=s.protocol+"//"+s.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?s.protocol+t:s.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 0!==s?s.protocol+"//"+t:"https://"+t),n=H(t)),n.port||(/^(http|ws)$/.test(n.protocol)?n.port="80":/^(http|ws)s$/.test(n.protocol)&&(n.port="443")),n.path=n.path||"/";const i=-1!==n.host.indexOf(":")?"["+n.host+"]":n.host;return n.id=n.protocol+"://"+i+":"+n.port+e,n.href=n.protocol+"://"+i+(s&&s.port===n.port?"":":"+n.port),n}(t,(e=e||{}).path||"/socket.io"),n=s.source,i=s.id,r=s.path,o=ut[i]&&r in ut[i].nsps;let h;return e.forceNew||e["force new connection"]||!1===e.multiplex||o?h=new pt(n,e):(ut[i]||(ut[i]=new pt(n,e)),h=ut[i]),s.query&&!e.query&&(e.query=s.queryKey),h.socket(s.path,e)}Object.assign(lt,{Manager:pt,Socket:at,io:lt,connect:lt});export{pt as Manager,at as Socket,lt as connect,lt as default,lt as io,et as protocol};
 //# sourceMappingURL=socket.io.esm.min.js.map

client-dist/socket.io.min.js

 /*!
- * Socket.IO v4.5.2
+ * Socket.IO v4.5.3
  * (c) 2014-2022 Guillermo Rauch
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).io=e()}(this,(function(){"use strict";function t(e){return t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},t(e)}function e(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function n(t,e){for(var n=0;n<e.length;n++){var r=e[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(t,r.key,r)}}function r(t,e,r){return e&&n(t.prototype,e),r&&n(t,r),Object.defineProperty(t,"prototype",{writable:!1}),t}function i(){return i=Object.assign?Object.assign.bind():function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var r in 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i=new(Function.bind.apply(t,r));return n&&a(i,n.prototype),i},u.apply(null,arguments)}function h(t){var e="function"==typeof Map?new Map:void 0;return h=function(t){if(null===t||(n=t,-1===Function.toString.call(n).indexOf("[native code]")))return t;var n;if("function"!=typeof t)throw new TypeError("Super expression must either be null or a function");if(void 0!==e){if(e.has(t))return e.get(t);e.set(t,r)}function r(){return u(t,arguments,s(this).constructor)}return r.prototype=Object.create(t.prototype,{constructor:{value:r,enumerable:!1,writable:!0,configurable:!0}}),a(r,t)},h(t)}function f(t){if(void 0===t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return t}function l(t,e){if(e&&("object"==typeof e||"function"==typeof e))return e;if(void 0!==e)throw new TypeError("Derived constructors may only return object or undefined");return f(t)}function p(t){var e=c();return function(){var n,r=s(t);if(e){var 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e=t,n=t.indexOf("["),r=t.indexOf("]");-1!=n&&-1!=r&&(t=t.substring(0,n)+t.substring(n,r).replace(/:/g,";")+t.substring(r,t.length));for(var i,o,s=ut.exec(t||""),a={},c=14;c--;)a[ht[c]]=s[c]||"";return-1!=n&&-1!=r&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a.pathNames=function(t,e){var n=/\/{2,9}/g,r=e.replace(n,"/").split("/");"/"!=e.substr(0,1)&&0!==e.length||r.splice(0,1);"/"==e.substr(e.length-1,1)&&r.splice(r.length-1,1);return r}(0,a.path),a.queryKey=(i=a.query,o={},i.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(o[e]=n)})),o),a}var lt=function(n){o(a,n);var s=p(a);function a(n){var r,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return 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i=function(){r||(n.send([{type:"ping",data:"probe"}]),n.once("packet",(function(t){if(!r)if("pong"===t.type&&"probe"===t.data){if(e.upgrading=!0,e.emitReserved("upgrading",n),!n)return;a.priorWebsocketSuccess="websocket"===n.name,e.transport.pause((function(){r||"closed"!==e.readyState&&(f(),e.setTransport(n),n.send([{type:"upgrade"}]),e.emitReserved("upgrade",n),n=null,e.upgrading=!1,e.flush())}))}else{var i=new Error("probe error");i.transport=n.name,e.emitReserved("upgradeError",i)}})))};function o(){r||(r=!0,f(),n.close(),n=null)}var s=function(t){var r=new Error("probe error: "+t);r.transport=n.name,o(),e.emitReserved("upgradeError",r)};function c(){s("transport closed")}function u(){s("socket closed")}function h(t){n&&t.name!==n.name&&o()}var f=function(){n.removeListener("open",i),n.removeListener("error",s),n.removeListener("close",c),e.off("close",u),e.off("upgrading",h)};n.once("open",i),n.once("error",s),n.once("close",c),this.once("close",u),this.once("upgrading",h),n.open()}},{key:"onOpen",value:function(){if(this.readyState="open",a.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},{key:"onPacket",value:function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}}},{key:"onHandshake",value:function(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.maxPayload=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var t=this;this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((function(){t.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}},{key:"onDrain",value:function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}},{key:"flush",value:function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}},{key:"getWritablePackets",value:function(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var t,e=1,n=0;n<this.writeBuffer.length;n++){var r=this.writeBuffer[n].data;if(r&&(e+="string"==typeof(t=r)?function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(t):Math.ceil(1.33*(t.byteLength||t.size))),n>0&&e>this.maxPayload)return this.writeBuffer.slice(0,n);e+=2}return this.writeBuffer}},{key:"write",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"send",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"sendPacket",value:function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){(n=n||{}).compress=!1!==n.compress;var i={type:t,data:e,options:n};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),r&&this.once("flush",r),this.flush()}}},{key:"close",value:function(){var t=this,e=function(){t.onClose("forced close"),t.transport.close()},n=function n(){t.off("upgrade",n),t.off("upgradeError",n),e()},r=function(){t.once("upgrade",n),t.once("upgradeError",n)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){t.upgrading?r():e()})):this.upgrading?r():e()),this}},{key:"onError",value:function(t){a.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}},{key:"onClose",value:function(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&removeEventListener("offline",this.offlineEventListener,!1),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}},{key:"filterUpgrades",value:function(t){for(var e=[],n=0,r=t.length;n<r;n++)~this.transports.indexOf(t[n])&&e.push(t[n]);return e}}]),a}(L);lt.protocol=4,lt.protocol;var pt="function"==typeof ArrayBuffer,dt=Object.prototype.toString,yt="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===dt.call(Blob),vt="function"==typeof File||"undefined"!=typeof File&&"[object FileConstructor]"===dt.call(File);function gt(t){return pt&&(t instanceof ArrayBuffer||function(t){return"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):t.buffer instanceof ArrayBuffer}(t))||yt&&t instanceof Blob||vt&&t instanceof File}function mt(e,n){if(!e||"object"!==t(e))return!1;if(Array.isArray(e)){for(var r=0,i=e.length;r<i;r++)if(mt(e[r]))return!0;return!1}if(gt(e))return!0;if(e.toJSON&&"function"==typeof e.toJSON&&1===arguments.length)return mt(e.toJSON(),!0);for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)&&mt(e[o]))return!0;return!1}function bt(t){var e=[],n=t.data,r=t;return r.data=kt(n,e),r.attachments=e.length,{packet:r,buffers:e}}function kt(e,n){if(!e)return e;if(gt(e)){var r={_placeholder:!0,num:n.length};return n.push(e),r}if(Array.isArray(e)){for(var i=new Array(e.length),o=0;o<e.length;o++)i[o]=kt(e[o],n);return i}if("object"===t(e)&&!(e instanceof Date)){var s={};for(var a in e)Object.prototype.hasOwnProperty.call(e,a)&&(s[a]=kt(e[a],n));return s}return e}function wt(t,e){return t.data=_t(t.data,e),t.attachments=void 0,t}function _t(e,n){if(!e)return e;if(e&&e._placeholder)return n[e.num];if(Array.isArray(e))for(var r=0;r<e.length;r++)e[r]=_t(e[r],n);else if("object"===t(e))for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(e[i]=_t(e[i],n));return e}var Ot;!function(t){t[t.CONNECT=0]="CONNECT",t[t.DISCONNECT=1]="DISCONNECT",t[t.EVENT=2]="EVENT",t[t.ACK=3]="ACK",t[t.CONNECT_ERROR=4]="CONNECT_ERROR",t[t.BINARY_EVENT=5]="BINARY_EVENT",t[t.BINARY_ACK=6]="BINARY_ACK"}(Ot||(Ot={}));var At=function(){function t(n){e(this,t),this.replacer=n}return r(t,[{key:"encode",value:function(t){return t.type!==Ot.EVENT&&t.type!==Ot.ACK||!mt(t)?[this.encodeAsString(t)]:(t.type=t.type===Ot.EVENT?Ot.BINARY_EVENT:Ot.BINARY_ACK,this.encodeAsBinary(t))}},{key:"encodeAsString",value:function(t){var e=""+t.type;return t.type!==Ot.BINARY_EVENT&&t.type!==Ot.BINARY_ACK||(e+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(e+=t.nsp+","),null!=t.id&&(e+=t.id),null!=t.data&&(e+=JSON.stringify(t.data,this.replacer)),e}},{key:"encodeAsBinary",value:function(t){var e=bt(t),n=this.encodeAsString(e.packet),r=e.buffers;return r.unshift(n),r}}]),t}(),Et=function(n){o(a,n);var i=p(a);function a(t){var n;return e(this,a),(n=i.call(this)).reviver=t,n}return r(a,[{key:"add",value:function(t){var e;if("string"==typeof t)(e=this.decodeString(t)).type===Ot.BINARY_EVENT||e.type===Ot.BINARY_ACK?(this.reconstructor=new Rt(e),0===e.attachments&&y(s(a.prototype),"emitReserved",this).call(this,"decoded",e)):y(s(a.prototype),"emitReserved",this).call(this,"decoded",e);else{if(!gt(t)&&!t.base64)throw new Error("Unknown type: "+t);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");(e=this.reconstructor.takeBinaryData(t))&&(this.reconstructor=null,y(s(a.prototype),"emitReserved",this).call(this,"decoded",e))}}},{key:"decodeString",value:function(t){var e=0,n={type:Number(t.charAt(0))};if(void 0===Ot[n.type])throw new Error("unknown packet type "+n.type);if(n.type===Ot.BINARY_EVENT||n.type===Ot.BINARY_ACK){for(var r=e+1;"-"!==t.charAt(++e)&&e!=t.length;);var i=t.substring(r,e);if(i!=Number(i)||"-"!==t.charAt(e))throw new Error("Illegal attachments");n.attachments=Number(i)}if("/"===t.charAt(e+1)){for(var o=e+1;++e;){if(","===t.charAt(e))break;if(e===t.length)break}n.nsp=t.substring(o,e)}else n.nsp="/";var s=t.charAt(e+1);if(""!==s&&Number(s)==s){for(var c=e+1;++e;){var u=t.charAt(e);if(null==u||Number(u)!=u){--e;break}if(e===t.length)break}n.id=Number(t.substring(c,e+1))}if(t.charAt(++e)){var h=this.tryParse(t.substr(e));if(!a.isPayloadValid(n.type,h))throw new Error("invalid payload");n.data=h}return n}},{key:"tryParse",value:function(t){try{return JSON.parse(t,this.reviver)}catch(t){return!1}}},{key:"destroy",value:function(){this.reconstructor&&this.reconstructor.finishedReconstruction()}}],[{key:"isPayloadValid",value:function(e,n){switch(e){case Ot.CONNECT:return"object"===t(n);case Ot.DISCONNECT:return void 0===n;case Ot.CONNECT_ERROR:return"string"==typeof n||"object"===t(n);case Ot.EVENT:case Ot.BINARY_EVENT:return Array.isArray(n)&&n.length>0;case Ot.ACK:case Ot.BINARY_ACK:return Array.isArray(n)}}}]),a}(L),Rt=function(){function t(n){e(this,t),this.packet=n,this.buffers=[],this.reconPack=n}return r(t,[{key:"takeBinaryData",value:function(t){if(this.buffers.push(t),this.buffers.length===this.reconPack.attachments){var e=wt(this.reconPack,this.buffers);return this.finishedReconstruction(),e}return null}},{key:"finishedReconstruction",value:function(){this.reconPack=null,this.buffers=[]}}]),t}(),Tt=Object.freeze({__proto__:null,protocol:5,get PacketType(){return Ot},Encoder:At,Decoder:Et});function Ct(t,e,n){return t.on(e,n),function(){t.off(e,n)}}var Bt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),St=function(t){o(i,t);var n=p(i);function i(t,r,o){var s;return e(this,i),(s=n.call(this)).connected=!1,s.receiveBuffer=[],s.sendBuffer=[],s.ids=0,s.acks={},s.flags={},s.io=t,s.nsp=r,o&&o.auth&&(s.auth=o.auth),s.io._autoConnect&&s.open(),s}return r(i,[{key:"disconnected",get:function(){return!this.connected}},{key:"subEvents",value:function(){if(!this.subs){var t=this.io;this.subs=[Ct(t,"open",this.onopen.bind(this)),Ct(t,"packet",this.onpacket.bind(this)),Ct(t,"error",this.onerror.bind(this)),Ct(t,"close",this.onclose.bind(this))]}}},{key:"active",get:function(){return!!this.subs}},{key:"connect",value:function(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}},{key:"open",value:function(){return this.connect()}},{key:"send",value:function(){for(var t=arguments.length,e=new Array(t),n=0;n<t;n++)e[n]=arguments[n];return e.unshift("message"),this.emit.apply(this,e),this}},{key:"emit",value:function(t){if(Bt.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');for(var e=arguments.length,n=new Array(e>1?e-1:0),r=1;r<e;r++)n[r-1]=arguments[r];n.unshift(t);var i={type:Ot.EVENT,data:n,options:{}};if(i.options.compress=!1!==this.flags.compress,"function"==typeof n[n.length-1]){var o=this.ids++,s=n.pop();this._registerAckCallback(o,s),i.id=o}var a=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable,c=this.flags.volatile&&(!a||!this.connected);return c||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}},{key:"_registerAckCallback",value:function(t,e){var n=this,r=this.flags.timeout;if(void 0!==r){var i=this.io.setTimeoutFn((function(){delete n.acks[t];for(var r=0;r<n.sendBuffer.length;r++)n.sendBuffer[r].id===t&&n.sendBuffer.splice(r,1);e.call(n,new Error("operation has timed out"))}),r);this.acks[t]=function(){n.io.clearTimeoutFn(i);for(var t=arguments.length,r=new Array(t),o=0;o<t;o++)r[o]=arguments[o];e.apply(n,[null].concat(r))}}else this.acks[t]=e}},{key:"packet",value:function(t){t.nsp=this.nsp,this.io._packet(t)}},{key:"onopen",value:function(){var t=this;"function"==typeof this.auth?this.auth((function(e){t.packet({type:Ot.CONNECT,data:e})})):this.packet({type:Ot.CONNECT,data:this.auth})}},{key:"onerror",value:function(t){this.connected||this.emitReserved("connect_error",t)}},{key:"onclose",value:function(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}},{key:"onpacket",value:function(t){if(t.nsp===this.nsp)switch(t.type){case Ot.CONNECT:if(t.data&&t.data.sid){var e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case Ot.EVENT:case Ot.BINARY_EVENT:this.onevent(t);break;case Ot.ACK:case Ot.BINARY_ACK:this.onack(t);break;case Ot.DISCONNECT:this.ondisconnect();break;case Ot.CONNECT_ERROR:this.destroy();var n=new Error(t.data.message);n.data=t.data.data,this.emitReserved("connect_error",n)}}},{key:"onevent",value:function(t){var e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}},{key:"emitEvent",value:function(t){if(this._anyListeners&&this._anyListeners.length){var e,n=g(this._anyListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t)}}catch(t){n.e(t)}finally{n.f()}}y(s(i.prototype),"emit",this).apply(this,t)}},{key:"ack",value:function(t){var e=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,i=new Array(r),o=0;o<r;o++)i[o]=arguments[o];e.packet({type:Ot.ACK,id:t,data:i})}}}},{key:"onack",value:function(t){var e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}},{key:"onconnect",value:function(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}},{key:"emitBuffered",value:function(){var t=this;this.receiveBuffer.forEach((function(e){return t.emitEvent(e)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(e){t.notifyOutgoingListeners(e),t.packet(e)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:Ot.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(t){return this.flags.compress=t,this}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}},{key:"timeout",value:function(t){return this.flags.timeout=t,this}},{key:"onAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}},{key:"prependAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}},{key:"offAny",value:function(t){if(!this._anyListeners)return this;if(t){for(var e=this._anyListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyListeners=[];return this}},{key:"listenersAny",value:function(){return this._anyListeners||[]}},{key:"onAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}},{key:"prependAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}},{key:"offAnyOutgoing",value:function(t){if(!this._anyOutgoingListeners)return this;if(t){for(var e=this._anyOutgoingListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyOutgoingListeners=[];return this}},{key:"listenersAnyOutgoing",value:function(){return this._anyOutgoingListeners||[]}},{key:"notifyOutgoingListeners",value:function(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){var e,n=g(this._anyOutgoingListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t.data)}}catch(t){n.e(t)}finally{n.f()}}}}]),i}(L);function Nt(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}Nt.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},Nt.prototype.reset=function(){this.attempts=0},Nt.prototype.setMin=function(t){this.ms=t},Nt.prototype.setMax=function(t){this.max=t},Nt.prototype.setJitter=function(t){this.jitter=t};var xt=function(n){o(s,n);var i=p(s);function s(n,r){var o,a;e(this,s),(o=i.call(this)).nsps={},o.subs=[],n&&"object"===t(n)&&(r=n,n=void 0),(r=r||{}).path=r.path||"/socket.io",o.opts=r,D(f(o),r),o.reconnection(!1!==r.reconnection),o.reconnectionAttempts(r.reconnectionAttempts||1/0),o.reconnectionDelay(r.reconnectionDelay||1e3),o.reconnectionDelayMax(r.reconnectionDelayMax||5e3),o.randomizationFactor(null!==(a=r.randomizationFactor)&&void 0!==a?a:.5),o.backoff=new Nt({min:o.reconnectionDelay(),max:o.reconnectionDelayMax(),jitter:o.randomizationFactor()}),o.timeout(null==r.timeout?2e4:r.timeout),o._readyState="closed",o.uri=n;var c=r.parser||Tt;return o.encoder=new c.Encoder,o.decoder=new c.Decoder,o._autoConnect=!1!==r.autoConnect,o._autoConnect&&o.open(),o}return r(s,[{key:"reconnection",value:function(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}},{key:"reconnectionAttempts",value:function(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}},{key:"reconnectionDelay",value:function(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}},{key:"randomizationFactor",value:function(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}},{key:"reconnectionDelayMax",value:function(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}},{key:"timeout",value:function(t){return arguments.length?(this._timeout=t,this):this._timeout}},{key:"maybeReconnectOnOpen",value:function(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}},{key:"open",value:function(t){var e=this;if(~this._readyState.indexOf("open"))return this;this.engine=new lt(this.uri,this.opts);var n=this.engine,r=this;this._readyState="opening",this.skipReconnect=!1;var i=Ct(n,"open",(function(){r.onopen(),t&&t()})),o=Ct(n,"error",(function(n){r.cleanup(),r._readyState="closed",e.emitReserved("error",n),t?t(n):r.maybeReconnectOnOpen()}));if(!1!==this._timeout){var s=this._timeout;0===s&&i();var a=this.setTimeoutFn((function(){i(),n.close(),n.emit("error",new Error("timeout"))}),s);this.opts.autoUnref&&a.unref(),this.subs.push((function(){clearTimeout(a)}))}return this.subs.push(i),this.subs.push(o),this}},{key:"connect",value:function(t){return this.open(t)}},{key:"onopen",value:function(){this.cleanup(),this._readyState="open",this.emitReserved("open");var t=this.engine;this.subs.push(Ct(t,"ping",this.onping.bind(this)),Ct(t,"data",this.ondata.bind(this)),Ct(t,"error",this.onerror.bind(this)),Ct(t,"close",this.onclose.bind(this)),Ct(this.decoder,"decoded",this.ondecoded.bind(this)))}},{key:"onping",value:function(){this.emitReserved("ping")}},{key:"ondata",value:function(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error")}}},{key:"ondecoded",value:function(t){this.emitReserved("packet",t)}},{key:"onerror",value:function(t){this.emitReserved("error",t)}},{key:"socket",value:function(t,e){var n=this.nsps[t];return n||(n=new St(this,t,e),this.nsps[t]=n),n}},{key:"_destroy",value:function(t){for(var e=0,n=Object.keys(this.nsps);e<n.length;e++){var r=n[e];if(this.nsps[r].active)return}this._close()}},{key:"_packet",value:function(t){for(var e=this.encoder.encode(t),n=0;n<e.length;n++)this.engine.write(e[n],t.options)}},{key:"cleanup",value:function(){this.subs.forEach((function(t){return t()})),this.subs.length=0,this.decoder.destroy()}},{key:"_close",value:function(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}},{key:"disconnect",value:function(){return this._close()}},{key:"onclose",value:function(t,e){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t,e),this._reconnection&&!this.skipReconnect&&this.reconnect()}},{key:"reconnect",value:function(){var t=this;if(this._reconnecting||this.skipReconnect)return this;var e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{var n=this.backoff.duration();this._reconnecting=!0;var r=this.setTimeoutFn((function(){e.skipReconnect||(t.emitReserved("reconnect_attempt",e.backoff.attempts),e.skipReconnect||e.open((function(n){n?(e._reconnecting=!1,e.reconnect(),t.emitReserved("reconnect_error",n)):e.onreconnect()})))}),n);this.opts.autoUnref&&r.unref(),this.subs.push((function(){clearTimeout(r)}))}}},{key:"onreconnect",value:function(){var t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}]),s}(L),Lt={};function Pt(e,n){"object"===t(e)&&(n=e,e=void 0);var r,i=function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2?arguments[2]:void 0,r=t;n=n||"undefined"!=typeof location&&location,null==t&&(t=n.protocol+"//"+n.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?n.protocol+t:n.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 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t=this.query||{},e=this.opts.secure?"wss":"ws",n="";this.opts.port&&("wss"===e&&443!==Number(this.opts.port)||"ws"===e&&80!==Number(this.opts.port))&&(n=":"+this.opts.port),this.opts.timestampRequests&&(t[this.opts.timestampParam]=W()),this.supportsBinary||(t.b64=1);var r=$(t);return e+"://"+(-1!==this.opts.hostname.indexOf(":")?"["+this.opts.hostname+"]":this.opts.hostname)+n+this.opts.path+(r.length?"?"+r:"")}},{key:"check",value:function(){return!!ot}}]),i}(U),ct={websocket:at,polling:et},ut=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,ht=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function ft(t){var e=t,n=t.indexOf("["),r=t.indexOf("]");-1!=n&&-1!=r&&(t=t.substring(0,n)+t.substring(n,r).replace(/:/g,";")+t.substring(r,t.length));for(var i,o,s=ut.exec(t||""),a={},c=14;c--;)a[ht[c]]=s[c]||"";return-1!=n&&-1!=r&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a.pathNames=function(t,e){var n=/\/{2,9}/g,r=e.replace(n,"/").split("/");"/"!=e.slice(0,1)&&0!==e.length||r.splice(0,1);"/"==e.slice(-1)&&r.splice(r.length-1,1);return r}(0,a.path),a.queryKey=(i=a.query,o={},i.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(o[e]=n)})),o),a}var lt=function(n){o(a,n);var s=p(a);function a(n){var r,o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return e(this,a),r=s.call(this),n&&"object"===t(n)&&(o=n,n=null),n?(n=ft(n),o.hostname=n.host,o.secure="https"===n.protocol||"wss"===n.protocol,o.port=n.port,n.query&&(o.query=n.query)):o.host&&(o.hostname=ft(o.host).host),D(f(r),o),r.secure=null!=o.secure?o.secure:"undefined"!=typeof location&&"https:"===location.protocol,o.hostname&&!o.port&&(o.port=r.secure?"443":"80"),r.hostname=o.hostname||("undefined"!=typeof location?location.hostname:"localhost"),r.port=o.port||("undefined"!=typeof location&&location.port?location.port:r.secure?"443":"80"),r.transports=o.transports||["polling","websocket"],r.readyState="",r.writeBuffer=[],r.prevBufferLen=0,r.opts=i({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!0},o),r.opts.path=r.opts.path.replace(/\/$/,"")+"/","string"==typeof r.opts.query&&(r.opts.query=J(r.opts.query)),r.id=null,r.upgrades=null,r.pingInterval=null,r.pingTimeout=null,r.pingTimeoutTimer=null,"function"==typeof addEventListener&&(r.opts.closeOnBeforeunload&&(r.beforeunloadEventListener=function(){r.transport&&(r.transport.removeAllListeners(),r.transport.close())},addEventListener("beforeunload",r.beforeunloadEventListener,!1)),"localhost"!==r.hostname&&(r.offlineEventListener=function(){r.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",r.offlineEventListener,!1))),r.open(),r}return r(a,[{key:"createTransport",value:function(t){var e=i({},this.opts.query);e.EIO=4,e.transport=t,this.id&&(e.sid=this.id);var n=i({},this.opts.transportOptions[t],this.opts,{query:e,socket:this,hostname:this.hostname,secure:this.secure,port:this.port});return new ct[t](n)}},{key:"open",value:function(){var t,e=this;if(this.opts.rememberUpgrade&&a.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length)return void this.setTimeoutFn((function(){e.emitReserved("error","No transports available")}),0);t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)}},{key:"setTransport",value:function(t){var e=this;this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",(function(t){return e.onClose("transport close",t)}))}},{key:"probe",value:function(t){var e=this,n=this.createTransport(t),r=!1;a.priorWebsocketSuccess=!1;var i=function(){r||(n.send([{type:"ping",data:"probe"}]),n.once("packet",(function(t){if(!r)if("pong"===t.type&&"probe"===t.data){if(e.upgrading=!0,e.emitReserved("upgrading",n),!n)return;a.priorWebsocketSuccess="websocket"===n.name,e.transport.pause((function(){r||"closed"!==e.readyState&&(f(),e.setTransport(n),n.send([{type:"upgrade"}]),e.emitReserved("upgrade",n),n=null,e.upgrading=!1,e.flush())}))}else{var i=new Error("probe error");i.transport=n.name,e.emitReserved("upgradeError",i)}})))};function o(){r||(r=!0,f(),n.close(),n=null)}var s=function(t){var r=new Error("probe error: "+t);r.transport=n.name,o(),e.emitReserved("upgradeError",r)};function c(){s("transport closed")}function u(){s("socket closed")}function h(t){n&&t.name!==n.name&&o()}var f=function(){n.removeListener("open",i),n.removeListener("error",s),n.removeListener("close",c),e.off("close",u),e.off("upgrading",h)};n.once("open",i),n.once("error",s),n.once("close",c),this.once("close",u),this.once("upgrading",h),n.open()}},{key:"onOpen",value:function(){if(this.readyState="open",a.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},{key:"onPacket",value:function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}}},{key:"onHandshake",value:function(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.maxPayload=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var t=this;this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((function(){t.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}},{key:"onDrain",value:function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}},{key:"flush",value:function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}},{key:"getWritablePackets",value:function(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var t,e=1,n=0;n<this.writeBuffer.length;n++){var r=this.writeBuffer[n].data;if(r&&(e+="string"==typeof(t=r)?function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(t):Math.ceil(1.33*(t.byteLength||t.size))),n>0&&e>this.maxPayload)return this.writeBuffer.slice(0,n);e+=2}return this.writeBuffer}},{key:"write",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"send",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"sendPacket",value:function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){(n=n||{}).compress=!1!==n.compress;var i={type:t,data:e,options:n};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),r&&this.once("flush",r),this.flush()}}},{key:"close",value:function(){var t=this,e=function(){t.onClose("forced close"),t.transport.close()},n=function n(){t.off("upgrade",n),t.off("upgradeError",n),e()},r=function(){t.once("upgrade",n),t.once("upgradeError",n)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){t.upgrading?r():e()})):this.upgrading?r():e()),this}},{key:"onError",value:function(t){a.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}},{key:"onClose",value:function(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}},{key:"filterUpgrades",value:function(t){for(var e=[],n=0,r=t.length;n<r;n++)~this.transports.indexOf(t[n])&&e.push(t[n]);return e}}]),a}(L);lt.protocol=4,lt.protocol;var pt="function"==typeof ArrayBuffer,dt=Object.prototype.toString,yt="function"==typeof Blob||"undefined"!=typeof Blob&&"[object BlobConstructor]"===dt.call(Blob),vt="function"==typeof File||"undefined"!=typeof File&&"[object FileConstructor]"===dt.call(File);function gt(t){return pt&&(t instanceof ArrayBuffer||function(t){return"function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):t.buffer instanceof ArrayBuffer}(t))||yt&&t instanceof Blob||vt&&t instanceof File}function mt(e,n){if(!e||"object"!==t(e))return!1;if(Array.isArray(e)){for(var r=0,i=e.length;r<i;r++)if(mt(e[r]))return!0;return!1}if(gt(e))return!0;if(e.toJSON&&"function"==typeof e.toJSON&&1===arguments.length)return mt(e.toJSON(),!0);for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)&&mt(e[o]))return!0;return!1}function bt(t){var e=[],n=t.data,r=t;return r.data=kt(n,e),r.attachments=e.length,{packet:r,buffers:e}}function kt(e,n){if(!e)return e;if(gt(e)){var r={_placeholder:!0,num:n.length};return n.push(e),r}if(Array.isArray(e)){for(var i=new Array(e.length),o=0;o<e.length;o++)i[o]=kt(e[o],n);return i}if("object"===t(e)&&!(e instanceof Date)){var s={};for(var a in e)Object.prototype.hasOwnProperty.call(e,a)&&(s[a]=kt(e[a],n));return s}return e}function wt(t,e){return t.data=_t(t.data,e),t.attachments=void 0,t}function _t(e,n){if(!e)return e;if(e&&e._placeholder)return n[e.num];if(Array.isArray(e))for(var r=0;r<e.length;r++)e[r]=_t(e[r],n);else if("object"===t(e))for(var i in e)Object.prototype.hasOwnProperty.call(e,i)&&(e[i]=_t(e[i],n));return e}var Ot;!function(t){t[t.CONNECT=0]="CONNECT",t[t.DISCONNECT=1]="DISCONNECT",t[t.EVENT=2]="EVENT",t[t.ACK=3]="ACK",t[t.CONNECT_ERROR=4]="CONNECT_ERROR",t[t.BINARY_EVENT=5]="BINARY_EVENT",t[t.BINARY_ACK=6]="BINARY_ACK"}(Ot||(Ot={}));var Et=function(){function t(n){e(this,t),this.replacer=n}return r(t,[{key:"encode",value:function(t){return t.type!==Ot.EVENT&&t.type!==Ot.ACK||!mt(t)?[this.encodeAsString(t)]:(t.type=t.type===Ot.EVENT?Ot.BINARY_EVENT:Ot.BINARY_ACK,this.encodeAsBinary(t))}},{key:"encodeAsString",value:function(t){var e=""+t.type;return t.type!==Ot.BINARY_EVENT&&t.type!==Ot.BINARY_ACK||(e+=t.attachments+"-"),t.nsp&&"/"!==t.nsp&&(e+=t.nsp+","),null!=t.id&&(e+=t.id),null!=t.data&&(e+=JSON.stringify(t.data,this.replacer)),e}},{key:"encodeAsBinary",value:function(t){var e=bt(t),n=this.encodeAsString(e.packet),r=e.buffers;return r.unshift(n),r}}]),t}(),At=function(n){o(a,n);var i=p(a);function a(t){var n;return e(this,a),(n=i.call(this)).reviver=t,n}return r(a,[{key:"add",value:function(t){var e;if("string"==typeof t)(e=this.decodeString(t)).type===Ot.BINARY_EVENT||e.type===Ot.BINARY_ACK?(this.reconstructor=new Rt(e),0===e.attachments&&y(s(a.prototype),"emitReserved",this).call(this,"decoded",e)):y(s(a.prototype),"emitReserved",this).call(this,"decoded",e);else{if(!gt(t)&&!t.base64)throw new Error("Unknown type: "+t);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");(e=this.reconstructor.takeBinaryData(t))&&(this.reconstructor=null,y(s(a.prototype),"emitReserved",this).call(this,"decoded",e))}}},{key:"decodeString",value:function(t){var e=0,n={type:Number(t.charAt(0))};if(void 0===Ot[n.type])throw new Error("unknown packet type "+n.type);if(n.type===Ot.BINARY_EVENT||n.type===Ot.BINARY_ACK){for(var r=e+1;"-"!==t.charAt(++e)&&e!=t.length;);var i=t.substring(r,e);if(i!=Number(i)||"-"!==t.charAt(e))throw new Error("Illegal attachments");n.attachments=Number(i)}if("/"===t.charAt(e+1)){for(var o=e+1;++e;){if(","===t.charAt(e))break;if(e===t.length)break}n.nsp=t.substring(o,e)}else n.nsp="/";var s=t.charAt(e+1);if(""!==s&&Number(s)==s){for(var c=e+1;++e;){var u=t.charAt(e);if(null==u||Number(u)!=u){--e;break}if(e===t.length)break}n.id=Number(t.substring(c,e+1))}if(t.charAt(++e)){var h=this.tryParse(t.substr(e));if(!a.isPayloadValid(n.type,h))throw new Error("invalid payload");n.data=h}return n}},{key:"tryParse",value:function(t){try{return JSON.parse(t,this.reviver)}catch(t){return!1}}},{key:"destroy",value:function(){this.reconstructor&&this.reconstructor.finishedReconstruction()}}],[{key:"isPayloadValid",value:function(e,n){switch(e){case Ot.CONNECT:return"object"===t(n);case Ot.DISCONNECT:return void 0===n;case Ot.CONNECT_ERROR:return"string"==typeof n||"object"===t(n);case Ot.EVENT:case Ot.BINARY_EVENT:return Array.isArray(n)&&n.length>0;case Ot.ACK:case Ot.BINARY_ACK:return Array.isArray(n)}}}]),a}(L),Rt=function(){function t(n){e(this,t),this.packet=n,this.buffers=[],this.reconPack=n}return r(t,[{key:"takeBinaryData",value:function(t){if(this.buffers.push(t),this.buffers.length===this.reconPack.attachments){var e=wt(this.reconPack,this.buffers);return this.finishedReconstruction(),e}return null}},{key:"finishedReconstruction",value:function(){this.reconPack=null,this.buffers=[]}}]),t}(),Tt=Object.freeze({__proto__:null,protocol:5,get PacketType(){return Ot},Encoder:Et,Decoder:At});function Ct(t,e,n){return t.on(e,n),function(){t.off(e,n)}}var Bt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),St=function(t){o(i,t);var n=p(i);function i(t,r,o){var s;return e(this,i),(s=n.call(this)).connected=!1,s.receiveBuffer=[],s.sendBuffer=[],s.ids=0,s.acks={},s.flags={},s.io=t,s.nsp=r,o&&o.auth&&(s.auth=o.auth),s.io._autoConnect&&s.open(),s}return r(i,[{key:"disconnected",get:function(){return!this.connected}},{key:"subEvents",value:function(){if(!this.subs){var t=this.io;this.subs=[Ct(t,"open",this.onopen.bind(this)),Ct(t,"packet",this.onpacket.bind(this)),Ct(t,"error",this.onerror.bind(this)),Ct(t,"close",this.onclose.bind(this))]}}},{key:"active",get:function(){return!!this.subs}},{key:"connect",value:function(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}},{key:"open",value:function(){return this.connect()}},{key:"send",value:function(){for(var t=arguments.length,e=new Array(t),n=0;n<t;n++)e[n]=arguments[n];return e.unshift("message"),this.emit.apply(this,e),this}},{key:"emit",value:function(t){if(Bt.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');for(var e=arguments.length,n=new Array(e>1?e-1:0),r=1;r<e;r++)n[r-1]=arguments[r];n.unshift(t);var i={type:Ot.EVENT,data:n,options:{}};if(i.options.compress=!1!==this.flags.compress,"function"==typeof n[n.length-1]){var o=this.ids++,s=n.pop();this._registerAckCallback(o,s),i.id=o}var a=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable,c=this.flags.volatile&&(!a||!this.connected);return c||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}},{key:"_registerAckCallback",value:function(t,e){var n=this,r=this.flags.timeout;if(void 0!==r){var i=this.io.setTimeoutFn((function(){delete n.acks[t];for(var r=0;r<n.sendBuffer.length;r++)n.sendBuffer[r].id===t&&n.sendBuffer.splice(r,1);e.call(n,new Error("operation has timed out"))}),r);this.acks[t]=function(){n.io.clearTimeoutFn(i);for(var t=arguments.length,r=new Array(t),o=0;o<t;o++)r[o]=arguments[o];e.apply(n,[null].concat(r))}}else this.acks[t]=e}},{key:"packet",value:function(t){t.nsp=this.nsp,this.io._packet(t)}},{key:"onopen",value:function(){var t=this;"function"==typeof this.auth?this.auth((function(e){t.packet({type:Ot.CONNECT,data:e})})):this.packet({type:Ot.CONNECT,data:this.auth})}},{key:"onerror",value:function(t){this.connected||this.emitReserved("connect_error",t)}},{key:"onclose",value:function(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}},{key:"onpacket",value:function(t){if(t.nsp===this.nsp)switch(t.type){case Ot.CONNECT:if(t.data&&t.data.sid){var e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case Ot.EVENT:case Ot.BINARY_EVENT:this.onevent(t);break;case Ot.ACK:case Ot.BINARY_ACK:this.onack(t);break;case Ot.DISCONNECT:this.ondisconnect();break;case Ot.CONNECT_ERROR:this.destroy();var n=new Error(t.data.message);n.data=t.data.data,this.emitReserved("connect_error",n)}}},{key:"onevent",value:function(t){var e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}},{key:"emitEvent",value:function(t){if(this._anyListeners&&this._anyListeners.length){var e,n=g(this._anyListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t)}}catch(t){n.e(t)}finally{n.f()}}y(s(i.prototype),"emit",this).apply(this,t)}},{key:"ack",value:function(t){var e=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,i=new Array(r),o=0;o<r;o++)i[o]=arguments[o];e.packet({type:Ot.ACK,id:t,data:i})}}}},{key:"onack",value:function(t){var e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}},{key:"onconnect",value:function(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}},{key:"emitBuffered",value:function(){var t=this;this.receiveBuffer.forEach((function(e){return t.emitEvent(e)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(e){t.notifyOutgoingListeners(e),t.packet(e)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:Ot.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(t){return this.flags.compress=t,this}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}},{key:"timeout",value:function(t){return this.flags.timeout=t,this}},{key:"onAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}},{key:"prependAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}},{key:"offAny",value:function(t){if(!this._anyListeners)return this;if(t){for(var e=this._anyListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyListeners=[];return this}},{key:"listenersAny",value:function(){return this._anyListeners||[]}},{key:"onAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}},{key:"prependAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}},{key:"offAnyOutgoing",value:function(t){if(!this._anyOutgoingListeners)return this;if(t){for(var e=this._anyOutgoingListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyOutgoingListeners=[];return this}},{key:"listenersAnyOutgoing",value:function(){return this._anyOutgoingListeners||[]}},{key:"notifyOutgoingListeners",value:function(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){var e,n=g(this._anyOutgoingListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t.data)}}catch(t){n.e(t)}finally{n.f()}}}}]),i}(L);function Nt(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}Nt.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},Nt.prototype.reset=function(){this.attempts=0},Nt.prototype.setMin=function(t){this.ms=t},Nt.prototype.setMax=function(t){this.max=t},Nt.prototype.setJitter=function(t){this.jitter=t};var xt=function(n){o(s,n);var i=p(s);function s(n,r){var o,a;e(this,s),(o=i.call(this)).nsps={},o.subs=[],n&&"object"===t(n)&&(r=n,n=void 0),(r=r||{}).path=r.path||"/socket.io",o.opts=r,D(f(o),r),o.reconnection(!1!==r.reconnection),o.reconnectionAttempts(r.reconnectionAttempts||1/0),o.reconnectionDelay(r.reconnectionDelay||1e3),o.reconnectionDelayMax(r.reconnectionDelayMax||5e3),o.randomizationFactor(null!==(a=r.randomizationFactor)&&void 0!==a?a:.5),o.backoff=new Nt({min:o.reconnectionDelay(),max:o.reconnectionDelayMax(),jitter:o.randomizationFactor()}),o.timeout(null==r.timeout?2e4:r.timeout),o._readyState="closed",o.uri=n;var c=r.parser||Tt;return o.encoder=new c.Encoder,o.decoder=new c.Decoder,o._autoConnect=!1!==r.autoConnect,o._autoConnect&&o.open(),o}return r(s,[{key:"reconnection",value:function(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}},{key:"reconnectionAttempts",value:function(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}},{key:"reconnectionDelay",value:function(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}},{key:"randomizationFactor",value:function(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}},{key:"reconnectionDelayMax",value:function(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}},{key:"timeout",value:function(t){return arguments.length?(this._timeout=t,this):this._timeout}},{key:"maybeReconnectOnOpen",value:function(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}},{key:"open",value:function(t){var e=this;if(~this._readyState.indexOf("open"))return this;this.engine=new lt(this.uri,this.opts);var n=this.engine,r=this;this._readyState="opening",this.skipReconnect=!1;var i=Ct(n,"open",(function(){r.onopen(),t&&t()})),o=Ct(n,"error",(function(n){r.cleanup(),r._readyState="closed",e.emitReserved("error",n),t?t(n):r.maybeReconnectOnOpen()}));if(!1!==this._timeout){var s=this._timeout;0===s&&i();var a=this.setTimeoutFn((function(){i(),n.close(),n.emit("error",new Error("timeout"))}),s);this.opts.autoUnref&&a.unref(),this.subs.push((function(){clearTimeout(a)}))}return this.subs.push(i),this.subs.push(o),this}},{key:"connect",value:function(t){return this.open(t)}},{key:"onopen",value:function(){this.cleanup(),this._readyState="open",this.emitReserved("open");var t=this.engine;this.subs.push(Ct(t,"ping",this.onping.bind(this)),Ct(t,"data",this.ondata.bind(this)),Ct(t,"error",this.onerror.bind(this)),Ct(t,"close",this.onclose.bind(this)),Ct(this.decoder,"decoded",this.ondecoded.bind(this)))}},{key:"onping",value:function(){this.emitReserved("ping")}},{key:"ondata",value:function(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error",t)}}},{key:"ondecoded",value:function(t){var e=this;it((function(){e.emitReserved("packet",t)}),this.setTimeoutFn)}},{key:"onerror",value:function(t){this.emitReserved("error",t)}},{key:"socket",value:function(t,e){var n=this.nsps[t];return n||(n=new St(this,t,e),this.nsps[t]=n),n}},{key:"_destroy",value:function(t){for(var e=0,n=Object.keys(this.nsps);e<n.length;e++){var r=n[e];if(this.nsps[r].active)return}this._close()}},{key:"_packet",value:function(t){for(var e=this.encoder.encode(t),n=0;n<e.length;n++)this.engine.write(e[n],t.options)}},{key:"cleanup",value:function(){this.subs.forEach((function(t){return t()})),this.subs.length=0,this.decoder.destroy()}},{key:"_close",value:function(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}},{key:"disconnect",value:function(){return this._close()}},{key:"onclose",value:function(t,e){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t,e),this._reconnection&&!this.skipReconnect&&this.reconnect()}},{key:"reconnect",value:function(){var t=this;if(this._reconnecting||this.skipReconnect)return this;var e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{var n=this.backoff.duration();this._reconnecting=!0;var r=this.setTimeoutFn((function(){e.skipReconnect||(t.emitReserved("reconnect_attempt",e.backoff.attempts),e.skipReconnect||e.open((function(n){n?(e._reconnecting=!1,e.reconnect(),t.emitReserved("reconnect_error",n)):e.onreconnect()})))}),n);this.opts.autoUnref&&r.unref(),this.subs.push((function(){clearTimeout(r)}))}}},{key:"onreconnect",value:function(){var t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}]),s}(L),Lt={};function Pt(e,n){"object"===t(e)&&(n=e,e=void 0);var r,i=function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2?arguments[2]:void 0,r=t;n=n||"undefined"!=typeof location&&location,null==t&&(t=n.protocol+"//"+n.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?n.protocol+t:n.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 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client-dist/socket.io.msgpack.min.js

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+ * Socket.IO v4.5.3
  * (c) 2014-2022 Guillermo Rauch
  * Released under the MIT License.
  */
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location&&t.hostname!==location.hostname||s!==t.port,i.xs=t.secure!==o}var a=t&&t.forceBase64;return i.supportsBinary=et&&!a,i}return i(r,[{key:"name",get:function(){return"polling"}},{key:"doOpen",value:function(){this.poll()}},{key:"pause",value:function(t){var e=this;this.readyState="pausing";var n=function(){e.readyState="paused",t()};if(this.polling||!this.writable){var r=0;this.polling&&(r++,this.once("pollComplete",(function(){--r||n()}))),this.writable||(r++,this.once("drain",(function(){--r||n()})))}else n()}},{key:"poll",value:function(){this.polling=!0,this.doPoll(),this.emitReserved("poll")}},{key:"onData",value:function(t){var e=this;(function(t,e){for(var n=t.split(U),r=[],i=0;i<n.length;i++){var o=L(n[i],e);if(r.push(o),"error"===o.type)break}return r})(t,this.socket.binaryType).forEach((function(t){if("opening"===e.readyState&&"open"===t.type&&e.onOpen(),"close"===t.type)return e.onClose({description:"transport closed by the server"}),!1;e.onPacket(t)})),"closed"!==this.readyState&&(this.polling=!1,this.emitReserved("pollComplete"),"open"===this.readyState&&this.poll())}},{key:"doClose",value:function(){var t=this,e=function(){t.write([{type:"close"}])};"open"===this.readyState?e():this.once("open",e)}},{key:"write",value:function(t){var e=this;this.writable=!1,function(t,e){var n=t.length,r=new Array(n),i=0;t.forEach((function(t,o){E(t,!1,(function(t){r[o]=t,++i===n&&e(r.join(U))}))}))}(t,(function(t){e.doWrite(t,(function(){e.writable=!0,e.emitReserved("drain")}))}))}},{key:"uri",value:function(){var t=this.query||{},e=this.opts.secure?"https":"http",n="";!1!==this.opts.timestampRequests&&(t[this.opts.timestampParam]=K()),this.supportsBinary||t.sid||(t.b64=1),this.opts.port&&("https"===e&&443!==Number(this.opts.port)||"http"===e&&80!==Number(this.opts.port))&&(n=":"+this.opts.port);var r=J(t);return e+"://"+(-1!==this.opts.hostname.indexOf(":")?"["+this.opts.hostname+"]":this.opts.hostname)+n+this.opts.path+(r.length?"?"+r:"")}},{key:"request",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return o(t,{xd:this.xd,xs:this.xs},this.opts),new rt(this.uri(),t)}},{key:"doWrite",value:function(t,e){var n=this,r=this.request({method:"POST",data:t});r.on("success",e),r.on("error",(function(t,e){n.onError("xhr post error",t,e)}))}},{key:"doPoll",value:function(){var t=this,e=this.request();e.on("data",this.onData.bind(this)),e.on("error",(function(e,n){t.onError("xhr poll error",e,n)})),this.pollXhr=e}}]),r}(H),rt=function(t){s(r,t);var e=d(r);function r(t,i){var o;return n(this,r),D(p(o=e.call(this)),i),o.opts=i,o.method=i.method||"GET",o.uri=t,o.async=!1!==i.async,o.data=void 0!==i.data?i.data:null,o.create(),o}return i(r,[{key:"create",value:function(){var t=this,e=N(this.opts,"agent","pfx","key","passphrase","cert","ca","ciphers","rejectUnauthorized","autoUnref");e.xdomain=!!this.opts.xd,e.xscheme=!!this.opts.xs;var n=this.xhr=new Z(e);try{n.open(this.method,this.uri,this.async);try{if(this.opts.extraHeaders)for(var i in n.setDisableHeaderCheck&&n.setDisableHeaderCheck(!0),this.opts.extraHeaders)this.opts.extraHeaders.hasOwnProperty(i)&&n.setRequestHeader(i,this.opts.extraHeaders[i])}catch(t){}if("POST"===this.method)try{n.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(t){}try{n.setRequestHeader("Accept","*/*")}catch(t){}"withCredentials"in n&&(n.withCredentials=this.opts.withCredentials),this.opts.requestTimeout&&(n.timeout=this.opts.requestTimeout),n.onreadystatechange=function(){4===n.readyState&&(200===n.status||1223===n.status?t.onLoad():t.setTimeoutFn((function(){t.onError("number"==typeof n.status?n.status:0)}),0))},n.send(this.data)}catch(e){return void this.setTimeoutFn((function(){t.onError(e)}),0)}"undefined"!=typeof document&&(this.index=r.requestsCount++,r.requests[this.index]=this)}},{key:"onError",value:function(t){this.emitReserved("error",t,this.xhr),this.cleanup(!0)}},{key:"cleanup",value:function(t){if(void 0!==this.xhr&&null!==this.xhr){if(this.xhr.onreadystatechange=tt,t)try{this.xhr.abort()}catch(t){}"undefined"!=typeof document&&delete r.requests[this.index],this.xhr=null}}},{key:"onLoad",value:function(){var t=this.xhr.responseText;null!==t&&(this.emitReserved("data",t),this.emitReserved("success"),this.cleanup())}},{key:"abort",value:function(){this.cleanup()}}]),r}(j);if(rt.requestsCount=0,rt.requests={},"undefined"!=typeof document)if("function"==typeof attachEvent)attachEvent("onunload",it);else if("function"==typeof addEventListener){addEventListener("onpagehide"in P?"pagehide":"unload",it,!1)}function it(){for(var t in rt.requests)rt.requests.hasOwnProperty(t)&&rt.requests[t].abort()}var ot="function"==typeof Promise&&"function"==typeof Promise.resolve?function(t){return Promise.resolve().then(t)}:function(t,e){return e(t,0)},st=P.WebSocket||P.MozWebSocket,at="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),ct=function(t){s(r,t);var e=d(r);function r(t){var i;return n(this,r),(i=e.call(this,t)).supportsBinary=!t.forceBase64,i}return i(r,[{key:"name",get:function(){return"websocket"}},{key:"doOpen",value:function(){if(this.check()){var t=this.uri(),e=this.opts.protocols,n=at?{}:N(this.opts,"agent","perMessageDeflate","pfx","key","passphrase","cert","ca","ciphers","rejectUnauthorized","localAddress","protocolVersion","origin","maxPayload","family","checkServerIdentity");this.opts.extraHeaders&&(n.headers=this.opts.extraHeaders);try{this.ws=at?new st(t,e,n):e?new st(t,e):new st(t)}catch(t){return 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t=this.query||{},e=this.opts.secure?"wss":"ws",n="";this.opts.port&&("wss"===e&&443!==Number(this.opts.port)||"ws"===e&&80!==Number(this.opts.port))&&(n=":"+this.opts.port),this.opts.timestampRequests&&(t[this.opts.timestampParam]=K()),this.supportsBinary||(t.b64=1);var r=J(t);return e+"://"+(-1!==this.opts.hostname.indexOf(":")?"["+this.opts.hostname+"]":this.opts.hostname)+n+this.opts.path+(r.length?"?"+r:"")}},{key:"check",value:function(){return!!st}}]),r}(H),ut={websocket:ct,polling:nt},ht=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,ft=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function pt(t){var e=t,n=t.indexOf("["),r=t.indexOf("]");-1!=n&&-1!=r&&(t=t.substring(0,n)+t.substring(n,r).replace(/:/g,";")+t.substring(r,t.length));for(var i,o,s=ht.exec(t||""),a={},c=14;c--;)a[ft[c]]=s[c]||"";return-1!=n&&-1!=r&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a.pathNames=function(t,e){var n=/\/{2,9}/g,r=e.replace(n,"/").split("/");"/"!=e.substr(0,1)&&0!==e.length||r.splice(0,1);"/"==e.substr(e.length-1,1)&&r.splice(r.length-1,1);return r}(0,a.path),a.queryKey=(i=a.query,o={},i.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(o[e]=n)})),o),a}var lt=function(t){s(a,t);var r=d(a);function a(t){var i,s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return n(this,a),i=r.call(this),t&&"object"===e(t)&&(s=t,t=null),t?(t=pt(t),s.hostname=t.host,s.secure="https"===t.protocol||"wss"===t.protocol,s.port=t.port,t.query&&(s.query=t.query)):s.host&&(s.hostname=pt(s.host).host),D(p(i),s),i.secure=null!=s.secure?s.secure:"undefined"!=typeof location&&"https:"===location.protocol,s.hostname&&!s.port&&(s.port=i.secure?"443":"80"),i.hostname=s.hostname||("undefined"!=typeof location?location.hostname:"localhost"),i.port=s.port||("undefined"!=typeof location&&location.port?location.port:i.secure?"443":"80"),i.transports=s.transports||["polling","websocket"],i.readyState="",i.writeBuffer=[],i.prevBufferLen=0,i.opts=o({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!0},s),i.opts.path=i.opts.path.replace(/\/$/,"")+"/","string"==typeof i.opts.query&&(i.opts.query=Y(i.opts.query)),i.id=null,i.upgrades=null,i.pingInterval=null,i.pingTimeout=null,i.pingTimeoutTimer=null,"function"==typeof addEventListener&&(i.opts.closeOnBeforeunload&&addEventListener("beforeunload",(function(){i.transport&&(i.transport.removeAllListeners(),i.transport.close())}),!1),"localhost"!==i.hostname&&(i.offlineEventListener=function(){i.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",i.offlineEventListener,!1))),i.open(),i}return i(a,[{key:"createTransport",value:function(t){var e=o({},this.opts.query);e.EIO=4,e.transport=t,this.id&&(e.sid=this.id);var n=o({},this.opts.transportOptions[t],this.opts,{query:e,socket:this,hostname:this.hostname,secure:this.secure,port:this.port});return new ut[t](n)}},{key:"open",value:function(){var t,e=this;if(this.opts.rememberUpgrade&&a.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length)return void this.setTimeoutFn((function(){e.emitReserved("error","No transports available")}),0);t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)}},{key:"setTransport",value:function(t){var e=this;this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",(function(t){return e.onClose("transport close",t)}))}},{key:"probe",value:function(t){var e=this,n=this.createTransport(t),r=!1;a.priorWebsocketSuccess=!1;var i=function(){r||(n.send([{type:"ping",data:"probe"}]),n.once("packet",(function(t){if(!r)if("pong"===t.type&&"probe"===t.data){if(e.upgrading=!0,e.emitReserved("upgrading",n),!n)return;a.priorWebsocketSuccess="websocket"===n.name,e.transport.pause((function(){r||"closed"!==e.readyState&&(f(),e.setTransport(n),n.send([{type:"upgrade"}]),e.emitReserved("upgrade",n),n=null,e.upgrading=!1,e.flush())}))}else{var i=new Error("probe error");i.transport=n.name,e.emitReserved("upgradeError",i)}})))};function o(){r||(r=!0,f(),n.close(),n=null)}var s=function(t){var r=new Error("probe error: "+t);r.transport=n.name,o(),e.emitReserved("upgradeError",r)};function c(){s("transport closed")}function u(){s("socket closed")}function h(t){n&&t.name!==n.name&&o()}var f=function(){n.removeListener("open",i),n.removeListener("error",s),n.removeListener("close",c),e.off("close",u),e.off("upgrading",h)};n.once("open",i),n.once("error",s),n.once("close",c),this.once("close",u),this.once("upgrading",h),n.open()}},{key:"onOpen",value:function(){if(this.readyState="open",a.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},{key:"onPacket",value:function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}}},{key:"onHandshake",value:function(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.maxPayload=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var t=this;this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((function(){t.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}},{key:"onDrain",value:function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}},{key:"flush",value:function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}},{key:"getWritablePackets",value:function(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var t,e=1,n=0;n<this.writeBuffer.length;n++){var r=this.writeBuffer[n].data;if(r&&(e+="string"==typeof(t=r)?function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(t):Math.ceil(1.33*(t.byteLength||t.size))),n>0&&e>this.maxPayload)return this.writeBuffer.slice(0,n);e+=2}return this.writeBuffer}},{key:"write",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"send",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"sendPacket",value:function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){(n=n||{}).compress=!1!==n.compress;var i={type:t,data:e,options:n};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),r&&this.once("flush",r),this.flush()}}},{key:"close",value:function(){var t=this,e=function(){t.onClose("forced close"),t.transport.close()},n=function n(){t.off("upgrade",n),t.off("upgradeError",n),e()},r=function(){t.once("upgrade",n),t.once("upgradeError",n)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){t.upgrading?r():e()})):this.upgrading?r():e()),this}},{key:"onError",value:function(t){a.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}},{key:"onClose",value:function(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&removeEventListener("offline",this.offlineEventListener,!1),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}},{key:"filterUpgrades",value:function(t){for(var e=[],n=0,r=t.length;n<r;n++)~this.transports.indexOf(t[n])&&e.push(t[n]);return e}}]),a}(j);lt.protocol=4,lt.protocol;var dt={},yt={};function vt(t,e,n){for(var r=0,i=0,o=n.length;i<o;i++)(r=n.charCodeAt(i))<128?t.setUint8(e++,r):r<2048?(t.setUint8(e++,192|r>>6),t.setUint8(e++,128|63&r)):r<55296||r>=57344?(t.setUint8(e++,224|r>>12),t.setUint8(e++,128|r>>6&63),t.setUint8(e++,128|63&r)):(i++,r=65536+((1023&r)<<10|1023&n.charCodeAt(i)),t.setUint8(e++,240|r>>18),t.setUint8(e++,128|r>>12&63),t.setUint8(e++,128|r>>6&63),t.setUint8(e++,128|63&r))}function gt(t,n,r){var i=e(r),o=0,s=0,a=0,c=0,u=0,h=0;if("string"===i){if(u=function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(r),u<32)t.push(160|u),h=1;else if(u<256)t.push(217,u),h=2;else if(u<65536)t.push(218,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("String too long");t.push(219,u>>24,u>>16,u>>8,u),h=5}return n.push({_str:r,_length:u,_offset:t.length}),h+u}if("number"===i)return Math.floor(r)===r&&isFinite(r)?r>=0?r<128?(t.push(r),1):r<256?(t.push(204,r),2):r<65536?(t.push(205,r>>8,r),3):r<4294967296?(t.push(206,r>>24,r>>16,r>>8,r),5):(a=r/Math.pow(2,32)>>0,c=r>>>0,t.push(207,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),9):r>=-32?(t.push(r),1):r>=-128?(t.push(208,r),2):r>=-32768?(t.push(209,r>>8,r),3):r>=-2147483648?(t.push(210,r>>24,r>>16,r>>8,r),5):(a=Math.floor(r/Math.pow(2,32)),c=r>>>0,t.push(211,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),9):(t.push(203),n.push({_float:r,_length:8,_offset:t.length}),9);if("object"===i){if(null===r)return t.push(192),1;if(Array.isArray(r)){if((u=r.length)<16)t.push(144|u),h=1;else if(u<65536)t.push(220,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Array too large");t.push(221,u>>24,u>>16,u>>8,u),h=5}for(o=0;o<u;o++)h+=gt(t,n,r[o]);return h}if(r instanceof Date){var f=r.getTime();return a=Math.floor(f/Math.pow(2,32)),c=f>>>0,t.push(215,0,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),10}if(r instanceof ArrayBuffer){if((u=r.byteLength)<256)t.push(196,u),h=2;else if(u<65536)t.push(197,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Buffer too large");t.push(198,u>>24,u>>16,u>>8,u),h=5}return n.push({_bin:r,_length:u,_offset:t.length}),h+u}if("function"==typeof r.toJSON)return gt(t,n,r.toJSON());var p=[],l="",d=Object.keys(r);for(o=0,s=d.length;o<s;o++)"function"!=typeof r[l=d[o]]&&p.push(l);if((u=p.length)<16)t.push(128|u),h=1;else if(u<65536)t.push(222,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Object too large");t.push(223,u>>24,u>>16,u>>8,u),h=5}for(o=0;o<u;o++)h+=gt(t,n,l=p[o]),h+=gt(t,n,r[l]);return h}if("boolean"===i)return t.push(r?195:194),1;if("undefined"===i)return t.push(212,0,0),3;throw new Error("Could not encode")}var mt=function(t){var e=[],n=[],r=gt(e,n,t),i=new ArrayBuffer(r),o=new DataView(i),s=0,a=0,c=-1;n.length>0&&(c=n[0]._offset);for(var u,h=0,f=0,p=0,l=e.length;p<l;p++)if(o.setUint8(a+p,e[p]),p+1===c){if(h=(u=n[s])._length,f=a+c,u._bin)for(var d=new Uint8Array(u._bin),y=0;y<h;y++)o.setUint8(f+y,d[y]);else u._str?vt(o,f,u._str):void 0!==u._float&&o.setFloat64(f,u._float);a+=h,n[++s]&&(c=n[s]._offset)}return i};function _t(t){if(this._offset=0,t instanceof ArrayBuffer)this._buffer=t,this._view=new DataView(this._buffer);else{if(!ArrayBuffer.isView(t))throw new Error("Invalid argument");this._buffer=t.buffer,this._view=new DataView(this._buffer,t.byteOffset,t.byteLength)}}_t.prototype._array=function(t){for(var e=new Array(t),n=0;n<t;n++)e[n]=this._parse();return e},_t.prototype._map=function(t){for(var e={},n=0;n<t;n++)e[this._parse()]=this._parse();return e},_t.prototype._str=function(t){var e=function(t,e,n){for(var r="",i=0,o=e,s=e+n;o<s;o++){var a=t.getUint8(o);if(0!=(128&a))if(192!=(224&a))if(224!=(240&a)){if(240!=(248&a))throw new Error("Invalid byte "+a.toString(16));(i=(7&a)<<18|(63&t.getUint8(++o))<<12|(63&t.getUint8(++o))<<6|(63&t.getUint8(++o))<<0)>=65536?(i-=65536,r+=String.fromCharCode(55296+(i>>>10),56320+(1023&i))):r+=String.fromCharCode(i)}else r+=String.fromCharCode((15&a)<<12|(63&t.getUint8(++o))<<6|(63&t.getUint8(++o))<<0);else r+=String.fromCharCode((31&a)<<6|63&t.getUint8(++o));else r+=String.fromCharCode(a)}return r}(this._view,this._offset,t);return this._offset+=t,e},_t.prototype._bin=function(t){var e=this._buffer.slice(this._offset,this._offset+t);return this._offset+=t,e},_t.prototype._parse=function(){var t,e=this._view.getUint8(this._offset++),n=0,r=0,i=0,o=0;if(e<192)return e<128?e:e<144?this._map(15&e):e<160?this._array(15&e):this._str(31&e);if(e>223)return-1*(255-e+1);switch(e){case 192:return null;case 194:return!1;case 195:return!0;case 196:return n=this._view.getUint8(this._offset),this._offset+=1,this._bin(n);case 197:return n=this._view.getUint16(this._offset),this._offset+=2,this._bin(n);case 198:return n=this._view.getUint32(this._offset),this._offset+=4,this._bin(n);case 199:return n=this._view.getUint8(this._offset),r=this._view.getInt8(this._offset+1),this._offset+=2,[r,this._bin(n)];case 200:return n=this._view.getUint16(this._offset),r=this._view.getInt8(this._offset+2),this._offset+=3,[r,this._bin(n)];case 201:return n=this._view.getUint32(this._offset),r=this._view.getInt8(this._offset+4),this._offset+=5,[r,this._bin(n)];case 202:return t=this._view.getFloat32(this._offset),this._offset+=4,t;case 203:return t=this._view.getFloat64(this._offset),this._offset+=8,t;case 204:return t=this._view.getUint8(this._offset),this._offset+=1,t;case 205:return t=this._view.getUint16(this._offset),this._offset+=2,t;case 206:return t=this._view.getUint32(this._offset),this._offset+=4,t;case 207:return i=this._view.getUint32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,i+o;case 208:return t=this._view.getInt8(this._offset),this._offset+=1,t;case 209:return t=this._view.getInt16(this._offset),this._offset+=2,t;case 210:return t=this._view.getInt32(this._offset),this._offset+=4,t;case 211:return i=this._view.getInt32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,i+o;case 212:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?void(this._offset+=1):[r,this._bin(1)];case 213:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(2)];case 214:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(4)];case 215:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?(i=this._view.getInt32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,new Date(i+o)):[r,this._bin(8)];case 216:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(16)];case 217:return n=this._view.getUint8(this._offset),this._offset+=1,this._str(n);case 218:return n=this._view.getUint16(this._offset),this._offset+=2,this._str(n);case 219:return n=this._view.getUint32(this._offset),this._offset+=4,this._str(n);case 220:return n=this._view.getUint16(this._offset),this._offset+=2,this._array(n);case 221:return n=this._view.getUint32(this._offset),this._offset+=4,this._array(n);case 222:return n=this._view.getUint16(this._offset),this._offset+=2,this._map(n);case 223:return n=this._view.getUint32(this._offset),this._offset+=4,this._map(n)}throw new Error("Could not parse")};var bt=function(t){var e=new _t(t),n=e._parse();if(e._offset!==t.byteLength)throw new Error(t.byteLength-e._offset+" trailing bytes");return n};yt.encode=mt,yt.decode=bt;var kt,wt={exports:{}};!function(t){function e(t){if(t)return function(t){for(var n in e.prototype)t[n]=e.prototype[n];return t}(t)}t.exports=e,e.prototype.on=e.prototype.addEventListener=function(t,e){return this._callbacks=this._callbacks||{},(this._callbacks["$"+t]=this._callbacks["$"+t]||[]).push(e),this},e.prototype.once=function(t,e){function n(){this.off(t,n),e.apply(this,arguments)}return n.fn=e,this.on(t,n),this},e.prototype.off=e.prototype.removeListener=e.prototype.removeAllListeners=e.prototype.removeEventListener=function(t,e){if(this._callbacks=this._callbacks||{},0==arguments.length)return this._callbacks={},this;var n,r=this._callbacks["$"+t];if(!r)return this;if(1==arguments.length)return delete this._callbacks["$"+t],this;for(var i=0;i<r.length;i++)if((n=r[i])===e||n.fn===e){r.splice(i,1);break}return 0===r.length&&delete this._callbacks["$"+t],this},e.prototype.emit=function(t){this._callbacks=this._callbacks||{};for(var e=new Array(arguments.length-1),n=this._callbacks["$"+t],r=1;r<arguments.length;r++)e[r-1]=arguments[r];if(n){r=0;for(var i=(n=n.slice(0)).length;r<i;++r)n[r].apply(this,e)}return this},e.prototype.listeners=function(t){return this._callbacks=this._callbacks||{},this._callbacks["$"+t]||[]},e.prototype.hasListeners=function(t){return!!this.listeners(t).length}}(wt);var Ot=yt,Et=wt.exports,Ct=dt.protocol=5,Rt=kt=dt.PacketType={CONNECT:0,DISCONNECT:1,EVENT:2,ACK:3,CONNECT_ERROR:4},Tt=Number.isInteger||function(t){return"number"==typeof t&&isFinite(t)&&Math.floor(t)===t},St=function(t){return"string"==typeof t},At=function(t){return"[object Object]"===Object.prototype.toString.call(t)};function Lt(){}function xt(){}Lt.prototype.encode=function(t){return[Ot.encode(t)]},Et(xt.prototype),xt.prototype.add=function(t){var e=Ot.decode(t);this.checkPacket(e),this.emit("decoded",e)},xt.prototype.checkPacket=function(t){if(!(Tt(t.type)&&t.type>=Rt.CONNECT&&t.type<=Rt.CONNECT_ERROR))throw new Error("invalid packet type");if(!St(t.nsp))throw new Error("invalid namespace");if(!function(t){switch(t.type){case Rt.CONNECT:return void 0===t.data||At(t.data);case Rt.DISCONNECT:return void 0===t.data;case Rt.CONNECT_ERROR:return St(t.data)||At(t.data);default:return Array.isArray(t.data)}}(t))throw new Error("invalid payload");if(!(void 0===t.id||Tt(t.id)))throw new Error("invalid packet id")},xt.prototype.destroy=function(){};var Bt=dt.Encoder=Lt,Ut=dt.Decoder=xt,jt=t({__proto__:null,default:dt,protocol:Ct,get PacketType(){return kt},Encoder:Bt,Decoder:Ut},[dt]);function Pt(t,e,n){return t.on(e,n),function(){t.off(e,n)}}var Nt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),qt=function(t){s(r,t);var e=d(r);function r(t,i,o){var s;return n(this,r),(s=e.call(this)).connected=!1,s.receiveBuffer=[],s.sendBuffer=[],s.ids=0,s.acks={},s.flags={},s.io=t,s.nsp=i,o&&o.auth&&(s.auth=o.auth),s.io._autoConnect&&s.open(),s}return i(r,[{key:"disconnected",get:function(){return!this.connected}},{key:"subEvents",value:function(){if(!this.subs){var t=this.io;this.subs=[Pt(t,"open",this.onopen.bind(this)),Pt(t,"packet",this.onpacket.bind(this)),Pt(t,"error",this.onerror.bind(this)),Pt(t,"close",this.onclose.bind(this))]}}},{key:"active",get:function(){return!!this.subs}},{key:"connect",value:function(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}},{key:"open",value:function(){return this.connect()}},{key:"send",value:function(){for(var t=arguments.length,e=new Array(t),n=0;n<t;n++)e[n]=arguments[n];return e.unshift("message"),this.emit.apply(this,e),this}},{key:"emit",value:function(t){if(Nt.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');for(var e=arguments.length,n=new Array(e>1?e-1:0),r=1;r<e;r++)n[r-1]=arguments[r];n.unshift(t);var i={type:kt.EVENT,data:n,options:{}};if(i.options.compress=!1!==this.flags.compress,"function"==typeof n[n.length-1]){var o=this.ids++,s=n.pop();this._registerAckCallback(o,s),i.id=o}var a=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable,c=this.flags.volatile&&(!a||!this.connected);return c||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}},{key:"_registerAckCallback",value:function(t,e){var n=this,r=this.flags.timeout;if(void 0!==r){var i=this.io.setTimeoutFn((function(){delete n.acks[t];for(var r=0;r<n.sendBuffer.length;r++)n.sendBuffer[r].id===t&&n.sendBuffer.splice(r,1);e.call(n,new Error("operation has timed out"))}),r);this.acks[t]=function(){n.io.clearTimeoutFn(i);for(var t=arguments.length,r=new Array(t),o=0;o<t;o++)r[o]=arguments[o];e.apply(n,[null].concat(r))}}else this.acks[t]=e}},{key:"packet",value:function(t){t.nsp=this.nsp,this.io._packet(t)}},{key:"onopen",value:function(){var t=this;"function"==typeof this.auth?this.auth((function(e){t.packet({type:kt.CONNECT,data:e})})):this.packet({type:kt.CONNECT,data:this.auth})}},{key:"onerror",value:function(t){this.connected||this.emitReserved("connect_error",t)}},{key:"onclose",value:function(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}},{key:"onpacket",value:function(t){if(t.nsp===this.nsp)switch(t.type){case kt.CONNECT:if(t.data&&t.data.sid){var e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case kt.EVENT:case kt.BINARY_EVENT:this.onevent(t);break;case kt.ACK:case kt.BINARY_ACK:this.onack(t);break;case kt.DISCONNECT:this.ondisconnect();break;case kt.CONNECT_ERROR:this.destroy();var n=new Error(t.data.message);n.data=t.data.data,this.emitReserved("connect_error",n)}}},{key:"onevent",value:function(t){var e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}},{key:"emitEvent",value:function(t){if(this._anyListeners&&this._anyListeners.length){var e,n=m(this._anyListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t)}}catch(t){n.e(t)}finally{n.f()}}v(a(r.prototype),"emit",this).apply(this,t)}},{key:"ack",value:function(t){var e=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,i=new Array(r),o=0;o<r;o++)i[o]=arguments[o];e.packet({type:kt.ACK,id:t,data:i})}}}},{key:"onack",value:function(t){var e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}},{key:"onconnect",value:function(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}},{key:"emitBuffered",value:function(){var t=this;this.receiveBuffer.forEach((function(e){return t.emitEvent(e)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(e){t.notifyOutgoingListeners(e),t.packet(e)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:kt.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(t){return this.flags.compress=t,this}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}},{key:"timeout",value:function(t){return this.flags.timeout=t,this}},{key:"onAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}},{key:"prependAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}},{key:"offAny",value:function(t){if(!this._anyListeners)return this;if(t){for(var e=this._anyListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyListeners=[];return this}},{key:"listenersAny",value:function(){return this._anyListeners||[]}},{key:"onAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}},{key:"prependAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}},{key:"offAnyOutgoing",value:function(t){if(!this._anyOutgoingListeners)return this;if(t){for(var e=this._anyOutgoingListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyOutgoingListeners=[];return this}},{key:"listenersAnyOutgoing",value:function(){return this._anyOutgoingListeners||[]}},{key:"notifyOutgoingListeners",value:function(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){var e,n=m(this._anyOutgoingListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t.data)}}catch(t){n.e(t)}finally{n.f()}}}}]),r}(j);function Mt(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}Mt.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},Mt.prototype.reset=function(){this.attempts=0},Mt.prototype.setMin=function(t){this.ms=t},Mt.prototype.setMax=function(t){this.max=t},Mt.prototype.setJitter=function(t){this.jitter=t};var Dt=function(t){s(o,t);var r=d(o);function o(t,i){var s,a;n(this,o),(s=r.call(this)).nsps={},s.subs=[],t&&"object"===e(t)&&(i=t,t=void 0),(i=i||{}).path=i.path||"/socket.io",s.opts=i,D(p(s),i),s.reconnection(!1!==i.reconnection),s.reconnectionAttempts(i.reconnectionAttempts||1/0),s.reconnectionDelay(i.reconnectionDelay||1e3),s.reconnectionDelayMax(i.reconnectionDelayMax||5e3),s.randomizationFactor(null!==(a=i.randomizationFactor)&&void 0!==a?a:.5),s.backoff=new Mt({min:s.reconnectionDelay(),max:s.reconnectionDelayMax(),jitter:s.randomizationFactor()}),s.timeout(null==i.timeout?2e4:i.timeout),s._readyState="closed",s.uri=t;var c=i.parser||jt;return s.encoder=new c.Encoder,s.decoder=new c.Decoder,s._autoConnect=!1!==i.autoConnect,s._autoConnect&&s.open(),s}return i(o,[{key:"reconnection",value:function(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}},{key:"reconnectionAttempts",value:function(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}},{key:"reconnectionDelay",value:function(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}},{key:"randomizationFactor",value:function(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}},{key:"reconnectionDelayMax",value:function(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}},{key:"timeout",value:function(t){return arguments.length?(this._timeout=t,this):this._timeout}},{key:"maybeReconnectOnOpen",value:function(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}},{key:"open",value:function(t){var e=this;if(~this._readyState.indexOf("open"))return this;this.engine=new lt(this.uri,this.opts);var n=this.engine,r=this;this._readyState="opening",this.skipReconnect=!1;var i=Pt(n,"open",(function(){r.onopen(),t&&t()})),o=Pt(n,"error",(function(n){r.cleanup(),r._readyState="closed",e.emitReserved("error",n),t?t(n):r.maybeReconnectOnOpen()}));if(!1!==this._timeout){var s=this._timeout;0===s&&i();var a=this.setTimeoutFn((function(){i(),n.close(),n.emit("error",new Error("timeout"))}),s);this.opts.autoUnref&&a.unref(),this.subs.push((function(){clearTimeout(a)}))}return this.subs.push(i),this.subs.push(o),this}},{key:"connect",value:function(t){return this.open(t)}},{key:"onopen",value:function(){this.cleanup(),this._readyState="open",this.emitReserved("open");var 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Promise&&"function"==typeof Promise.resolve?function(t){return Promise.resolve().then(t)}:function(t,e){return e(t,0)},st=P.WebSocket||P.MozWebSocket,at="undefined"!=typeof navigator&&"string"==typeof navigator.product&&"reactnative"===navigator.product.toLowerCase(),ct=function(t){s(r,t);var e=d(r);function r(t){var i;return n(this,r),(i=e.call(this,t)).supportsBinary=!t.forceBase64,i}return i(r,[{key:"name",get:function(){return"websocket"}},{key:"doOpen",value:function(){if(this.check()){var t=this.uri(),e=this.opts.protocols,n=at?{}:N(this.opts,"agent","perMessageDeflate","pfx","key","passphrase","cert","ca","ciphers","rejectUnauthorized","localAddress","protocolVersion","origin","maxPayload","family","checkServerIdentity");this.opts.extraHeaders&&(n.headers=this.opts.extraHeaders);try{this.ws=at?new st(t,e,n):e?new st(t,e):new st(t)}catch(t){return this.emitReserved("error",t)}this.ws.binaryType=this.socket.binaryType||"arraybuffer",this.addEventListeners()}}},{key:"addEventListeners",value:function(){var t=this;this.ws.onopen=function(){t.opts.autoUnref&&t.ws._socket.unref(),t.onOpen()},this.ws.onclose=function(e){return t.onClose({description:"websocket connection closed",context:e})},this.ws.onmessage=function(e){return t.onData(e.data)},this.ws.onerror=function(e){return t.onError("websocket error",e)}}},{key:"write",value:function(t){var e=this;this.writable=!1;for(var n=function(n){var r=t[n],i=n===t.length-1;E(r,e.supportsBinary,(function(t){try{e.ws.send(t)}catch(t){}i&&ot((function(){e.writable=!0,e.emitReserved("drain")}),e.setTimeoutFn)}))},r=0;r<t.length;r++)n(r)}},{key:"doClose",value:function(){void 0!==this.ws&&(this.ws.close(),this.ws=null)}},{key:"uri",value:function(){var t=this.query||{},e=this.opts.secure?"wss":"ws",n="";this.opts.port&&("wss"===e&&443!==Number(this.opts.port)||"ws"===e&&80!==Number(this.opts.port))&&(n=":"+this.opts.port),this.opts.timestampRequests&&(t[this.opts.timestampParam]=K()),this.supportsBinary||(t.b64=1);var r=J(t);return e+"://"+(-1!==this.opts.hostname.indexOf(":")?"["+this.opts.hostname+"]":this.opts.hostname)+n+this.opts.path+(r.length?"?"+r:"")}},{key:"check",value:function(){return!!st}}]),r}(H),ut={websocket:ct,polling:nt},ht=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,ft=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];function lt(t){var e=t,n=t.indexOf("["),r=t.indexOf("]");-1!=n&&-1!=r&&(t=t.substring(0,n)+t.substring(n,r).replace(/:/g,";")+t.substring(r,t.length));for(var i,o,s=ht.exec(t||""),a={},c=14;c--;)a[ft[c]]=s[c]||"";return-1!=n&&-1!=r&&(a.source=e,a.host=a.host.substring(1,a.host.length-1).replace(/;/g,":"),a.authority=a.authority.replace("[","").replace("]","").replace(/;/g,":"),a.ipv6uri=!0),a.pathNames=function(t,e){var n=/\/{2,9}/g,r=e.replace(n,"/").split("/");"/"!=e.slice(0,1)&&0!==e.length||r.splice(0,1);"/"==e.slice(-1)&&r.splice(r.length-1,1);return r}(0,a.path),a.queryKey=(i=a.query,o={},i.replace(/(?:^|&)([^&=]*)=?([^&]*)/g,(function(t,e,n){e&&(o[e]=n)})),o),a}var pt=function(t){s(a,t);var r=d(a);function a(t){var i,s=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};return n(this,a),i=r.call(this),t&&"object"===e(t)&&(s=t,t=null),t?(t=lt(t),s.hostname=t.host,s.secure="https"===t.protocol||"wss"===t.protocol,s.port=t.port,t.query&&(s.query=t.query)):s.host&&(s.hostname=lt(s.host).host),D(l(i),s),i.secure=null!=s.secure?s.secure:"undefined"!=typeof location&&"https:"===location.protocol,s.hostname&&!s.port&&(s.port=i.secure?"443":"80"),i.hostname=s.hostname||("undefined"!=typeof location?location.hostname:"localhost"),i.port=s.port||("undefined"!=typeof location&&location.port?location.port:i.secure?"443":"80"),i.transports=s.transports||["polling","websocket"],i.readyState="",i.writeBuffer=[],i.prevBufferLen=0,i.opts=o({path:"/engine.io",agent:!1,withCredentials:!1,upgrade:!0,timestampParam:"t",rememberUpgrade:!1,rejectUnauthorized:!0,perMessageDeflate:{threshold:1024},transportOptions:{},closeOnBeforeunload:!0},s),i.opts.path=i.opts.path.replace(/\/$/,"")+"/","string"==typeof i.opts.query&&(i.opts.query=Y(i.opts.query)),i.id=null,i.upgrades=null,i.pingInterval=null,i.pingTimeout=null,i.pingTimeoutTimer=null,"function"==typeof addEventListener&&(i.opts.closeOnBeforeunload&&(i.beforeunloadEventListener=function(){i.transport&&(i.transport.removeAllListeners(),i.transport.close())},addEventListener("beforeunload",i.beforeunloadEventListener,!1)),"localhost"!==i.hostname&&(i.offlineEventListener=function(){i.onClose("transport close",{description:"network connection lost"})},addEventListener("offline",i.offlineEventListener,!1))),i.open(),i}return i(a,[{key:"createTransport",value:function(t){var e=o({},this.opts.query);e.EIO=4,e.transport=t,this.id&&(e.sid=this.id);var n=o({},this.opts.transportOptions[t],this.opts,{query:e,socket:this,hostname:this.hostname,secure:this.secure,port:this.port});return new ut[t](n)}},{key:"open",value:function(){var t,e=this;if(this.opts.rememberUpgrade&&a.priorWebsocketSuccess&&-1!==this.transports.indexOf("websocket"))t="websocket";else{if(0===this.transports.length)return void this.setTimeoutFn((function(){e.emitReserved("error","No transports available")}),0);t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)}},{key:"setTransport",value:function(t){var e=this;this.transport&&this.transport.removeAllListeners(),this.transport=t,t.on("drain",this.onDrain.bind(this)).on("packet",this.onPacket.bind(this)).on("error",this.onError.bind(this)).on("close",(function(t){return e.onClose("transport close",t)}))}},{key:"probe",value:function(t){var e=this,n=this.createTransport(t),r=!1;a.priorWebsocketSuccess=!1;var i=function(){r||(n.send([{type:"ping",data:"probe"}]),n.once("packet",(function(t){if(!r)if("pong"===t.type&&"probe"===t.data){if(e.upgrading=!0,e.emitReserved("upgrading",n),!n)return;a.priorWebsocketSuccess="websocket"===n.name,e.transport.pause((function(){r||"closed"!==e.readyState&&(f(),e.setTransport(n),n.send([{type:"upgrade"}]),e.emitReserved("upgrade",n),n=null,e.upgrading=!1,e.flush())}))}else{var i=new Error("probe error");i.transport=n.name,e.emitReserved("upgradeError",i)}})))};function o(){r||(r=!0,f(),n.close(),n=null)}var s=function(t){var r=new Error("probe error: "+t);r.transport=n.name,o(),e.emitReserved("upgradeError",r)};function c(){s("transport closed")}function u(){s("socket closed")}function h(t){n&&t.name!==n.name&&o()}var f=function(){n.removeListener("open",i),n.removeListener("error",s),n.removeListener("close",c),e.off("close",u),e.off("upgrading",h)};n.once("open",i),n.once("error",s),n.once("close",c),this.once("close",u),this.once("upgrading",h),n.open()}},{key:"onOpen",value:function(){if(this.readyState="open",a.priorWebsocketSuccess="websocket"===this.transport.name,this.emitReserved("open"),this.flush(),"open"===this.readyState&&this.opts.upgrade&&this.transport.pause)for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},{key:"onPacket",value:function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(this.emitReserved("packet",t),this.emitReserved("heartbeat"),t.type){case"open":this.onHandshake(JSON.parse(t.data));break;case"ping":this.resetPingTimeout(),this.sendPacket("pong"),this.emitReserved("ping"),this.emitReserved("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emitReserved("data",t.data),this.emitReserved("message",t.data)}}},{key:"onHandshake",value:function(t){this.emitReserved("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.maxPayload=t.maxPayload,this.onOpen(),"closed"!==this.readyState&&this.resetPingTimeout()}},{key:"resetPingTimeout",value:function(){var t=this;this.clearTimeoutFn(this.pingTimeoutTimer),this.pingTimeoutTimer=this.setTimeoutFn((function(){t.onClose("ping timeout")}),this.pingInterval+this.pingTimeout),this.opts.autoUnref&&this.pingTimeoutTimer.unref()}},{key:"onDrain",value:function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emitReserved("drain"):this.flush()}},{key:"flush",value:function(){if("closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length){var t=this.getWritablePackets();this.transport.send(t),this.prevBufferLen=t.length,this.emitReserved("flush")}}},{key:"getWritablePackets",value:function(){if(!(this.maxPayload&&"polling"===this.transport.name&&this.writeBuffer.length>1))return this.writeBuffer;for(var t,e=1,n=0;n<this.writeBuffer.length;n++){var r=this.writeBuffer[n].data;if(r&&(e+="string"==typeof(t=r)?function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(t):Math.ceil(1.33*(t.byteLength||t.size))),n>0&&e>this.maxPayload)return this.writeBuffer.slice(0,n);e+=2}return this.writeBuffer}},{key:"write",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"send",value:function(t,e,n){return this.sendPacket("message",t,e,n),this}},{key:"sendPacket",value:function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){(n=n||{}).compress=!1!==n.compress;var i={type:t,data:e,options:n};this.emitReserved("packetCreate",i),this.writeBuffer.push(i),r&&this.once("flush",r),this.flush()}}},{key:"close",value:function(){var t=this,e=function(){t.onClose("forced close"),t.transport.close()},n=function n(){t.off("upgrade",n),t.off("upgradeError",n),e()},r=function(){t.once("upgrade",n),t.once("upgradeError",n)};return"opening"!==this.readyState&&"open"!==this.readyState||(this.readyState="closing",this.writeBuffer.length?this.once("drain",(function(){t.upgrading?r():e()})):this.upgrading?r():e()),this}},{key:"onError",value:function(t){a.priorWebsocketSuccess=!1,this.emitReserved("error",t),this.onClose("transport error",t)}},{key:"onClose",value:function(t,e){"opening"!==this.readyState&&"open"!==this.readyState&&"closing"!==this.readyState||(this.clearTimeoutFn(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),"function"==typeof removeEventListener&&(removeEventListener("beforeunload",this.beforeunloadEventListener,!1),removeEventListener("offline",this.offlineEventListener,!1)),this.readyState="closed",this.id=null,this.emitReserved("close",t,e),this.writeBuffer=[],this.prevBufferLen=0)}},{key:"filterUpgrades",value:function(t){for(var e=[],n=0,r=t.length;n<r;n++)~this.transports.indexOf(t[n])&&e.push(t[n]);return e}}]),a}(j);pt.protocol=4,pt.protocol;var dt={},yt={};function vt(t,e,n){for(var r=0,i=0,o=n.length;i<o;i++)(r=n.charCodeAt(i))<128?t.setUint8(e++,r):r<2048?(t.setUint8(e++,192|r>>6),t.setUint8(e++,128|63&r)):r<55296||r>=57344?(t.setUint8(e++,224|r>>12),t.setUint8(e++,128|r>>6&63),t.setUint8(e++,128|63&r)):(i++,r=65536+((1023&r)<<10|1023&n.charCodeAt(i)),t.setUint8(e++,240|r>>18),t.setUint8(e++,128|r>>12&63),t.setUint8(e++,128|r>>6&63),t.setUint8(e++,128|63&r))}function gt(t,n,r){var i=e(r),o=0,s=0,a=0,c=0,u=0,h=0;if("string"===i){if(u=function(t){for(var e=0,n=0,r=0,i=t.length;r<i;r++)(e=t.charCodeAt(r))<128?n+=1:e<2048?n+=2:e<55296||e>=57344?n+=3:(r++,n+=4);return n}(r),u<32)t.push(160|u),h=1;else if(u<256)t.push(217,u),h=2;else if(u<65536)t.push(218,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("String too long");t.push(219,u>>24,u>>16,u>>8,u),h=5}return n.push({_str:r,_length:u,_offset:t.length}),h+u}if("number"===i)return Math.floor(r)===r&&isFinite(r)?r>=0?r<128?(t.push(r),1):r<256?(t.push(204,r),2):r<65536?(t.push(205,r>>8,r),3):r<4294967296?(t.push(206,r>>24,r>>16,r>>8,r),5):(a=r/Math.pow(2,32)>>0,c=r>>>0,t.push(207,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),9):r>=-32?(t.push(r),1):r>=-128?(t.push(208,r),2):r>=-32768?(t.push(209,r>>8,r),3):r>=-2147483648?(t.push(210,r>>24,r>>16,r>>8,r),5):(a=Math.floor(r/Math.pow(2,32)),c=r>>>0,t.push(211,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),9):(t.push(203),n.push({_float:r,_length:8,_offset:t.length}),9);if("object"===i){if(null===r)return t.push(192),1;if(Array.isArray(r)){if((u=r.length)<16)t.push(144|u),h=1;else if(u<65536)t.push(220,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Array too large");t.push(221,u>>24,u>>16,u>>8,u),h=5}for(o=0;o<u;o++)h+=gt(t,n,r[o]);return h}if(r instanceof Date){var f=r.getTime();return a=Math.floor(f/Math.pow(2,32)),c=f>>>0,t.push(215,0,a>>24,a>>16,a>>8,a,c>>24,c>>16,c>>8,c),10}if(r instanceof ArrayBuffer){if((u=r.byteLength)<256)t.push(196,u),h=2;else if(u<65536)t.push(197,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Buffer too large");t.push(198,u>>24,u>>16,u>>8,u),h=5}return n.push({_bin:r,_length:u,_offset:t.length}),h+u}if("function"==typeof r.toJSON)return gt(t,n,r.toJSON());var l=[],p="",d=Object.keys(r);for(o=0,s=d.length;o<s;o++)"function"!=typeof r[p=d[o]]&&l.push(p);if((u=l.length)<16)t.push(128|u),h=1;else if(u<65536)t.push(222,u>>8,u),h=3;else{if(!(u<4294967296))throw new Error("Object too 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e},_t.prototype._map=function(t){for(var e={},n=0;n<t;n++)e[this._parse()]=this._parse();return e},_t.prototype._str=function(t){var e=function(t,e,n){for(var r="",i=0,o=e,s=e+n;o<s;o++){var a=t.getUint8(o);if(0!=(128&a))if(192!=(224&a))if(224!=(240&a)){if(240!=(248&a))throw new Error("Invalid byte "+a.toString(16));(i=(7&a)<<18|(63&t.getUint8(++o))<<12|(63&t.getUint8(++o))<<6|(63&t.getUint8(++o))<<0)>=65536?(i-=65536,r+=String.fromCharCode(55296+(i>>>10),56320+(1023&i))):r+=String.fromCharCode(i)}else r+=String.fromCharCode((15&a)<<12|(63&t.getUint8(++o))<<6|(63&t.getUint8(++o))<<0);else r+=String.fromCharCode((31&a)<<6|63&t.getUint8(++o));else r+=String.fromCharCode(a)}return r}(this._view,this._offset,t);return this._offset+=t,e},_t.prototype._bin=function(t){var e=this._buffer.slice(this._offset,this._offset+t);return this._offset+=t,e},_t.prototype._parse=function(){var t,e=this._view.getUint8(this._offset++),n=0,r=0,i=0,o=0;if(e<192)return e<128?e:e<144?this._map(15&e):e<160?this._array(15&e):this._str(31&e);if(e>223)return-1*(255-e+1);switch(e){case 192:return null;case 194:return!1;case 195:return!0;case 196:return n=this._view.getUint8(this._offset),this._offset+=1,this._bin(n);case 197:return n=this._view.getUint16(this._offset),this._offset+=2,this._bin(n);case 198:return n=this._view.getUint32(this._offset),this._offset+=4,this._bin(n);case 199:return n=this._view.getUint8(this._offset),r=this._view.getInt8(this._offset+1),this._offset+=2,[r,this._bin(n)];case 200:return n=this._view.getUint16(this._offset),r=this._view.getInt8(this._offset+2),this._offset+=3,[r,this._bin(n)];case 201:return n=this._view.getUint32(this._offset),r=this._view.getInt8(this._offset+4),this._offset+=5,[r,this._bin(n)];case 202:return t=this._view.getFloat32(this._offset),this._offset+=4,t;case 203:return t=this._view.getFloat64(this._offset),this._offset+=8,t;case 204:return t=this._view.getUint8(this._offset),this._offset+=1,t;case 205:return t=this._view.getUint16(this._offset),this._offset+=2,t;case 206:return t=this._view.getUint32(this._offset),this._offset+=4,t;case 207:return i=this._view.getUint32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,i+o;case 208:return t=this._view.getInt8(this._offset),this._offset+=1,t;case 209:return t=this._view.getInt16(this._offset),this._offset+=2,t;case 210:return t=this._view.getInt32(this._offset),this._offset+=4,t;case 211:return i=this._view.getInt32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,i+o;case 212:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?void(this._offset+=1):[r,this._bin(1)];case 213:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(2)];case 214:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(4)];case 215:return r=this._view.getInt8(this._offset),this._offset+=1,0===r?(i=this._view.getInt32(this._offset)*Math.pow(2,32),o=this._view.getUint32(this._offset+4),this._offset+=8,new Date(i+o)):[r,this._bin(8)];case 216:return r=this._view.getInt8(this._offset),this._offset+=1,[r,this._bin(16)];case 217:return n=this._view.getUint8(this._offset),this._offset+=1,this._str(n);case 218:return n=this._view.getUint16(this._offset),this._offset+=2,this._str(n);case 219:return n=this._view.getUint32(this._offset),this._offset+=4,this._str(n);case 220:return n=this._view.getUint16(this._offset),this._offset+=2,this._array(n);case 221:return n=this._view.getUint32(this._offset),this._offset+=4,this._array(n);case 222:return n=this._view.getUint16(this._offset),this._offset+=2,this._map(n);case 223:return n=this._view.getUint32(this._offset),this._offset+=4,this._map(n)}throw new Error("Could not parse")};var bt=function(t){var e=new _t(t),n=e._parse();if(e._offset!==t.byteLength)throw new Error(t.byteLength-e._offset+" trailing bytes");return n};yt.encode=mt,yt.decode=bt;var kt,wt={exports:{}};!function(t){function e(t){if(t)return function(t){for(var n in e.prototype)t[n]=e.prototype[n];return t}(t)}t.exports=e,e.prototype.on=e.prototype.addEventListener=function(t,e){return this._callbacks=this._callbacks||{},(this._callbacks["$"+t]=this._callbacks["$"+t]||[]).push(e),this},e.prototype.once=function(t,e){function n(){this.off(t,n),e.apply(this,arguments)}return n.fn=e,this.on(t,n),this},e.prototype.off=e.prototype.removeListener=e.prototype.removeAllListeners=e.prototype.removeEventListener=function(t,e){if(this._callbacks=this._callbacks||{},0==arguments.length)return this._callbacks={},this;var n,r=this._callbacks["$"+t];if(!r)return this;if(1==arguments.length)return delete this._callbacks["$"+t],this;for(var i=0;i<r.length;i++)if((n=r[i])===e||n.fn===e){r.splice(i,1);break}return 0===r.length&&delete this._callbacks["$"+t],this},e.prototype.emit=function(t){this._callbacks=this._callbacks||{};for(var e=new Array(arguments.length-1),n=this._callbacks["$"+t],r=1;r<arguments.length;r++)e[r-1]=arguments[r];if(n){r=0;for(var i=(n=n.slice(0)).length;r<i;++r)n[r].apply(this,e)}return this},e.prototype.listeners=function(t){return this._callbacks=this._callbacks||{},this._callbacks["$"+t]||[]},e.prototype.hasListeners=function(t){return!!this.listeners(t).length}}(wt);var Ot=yt,Et=wt.exports,Ct=dt.protocol=5,Rt=kt=dt.PacketType={CONNECT:0,DISCONNECT:1,EVENT:2,ACK:3,CONNECT_ERROR:4},Tt=Number.isInteger||function(t){return"number"==typeof t&&isFinite(t)&&Math.floor(t)===t},St=function(t){return"string"==typeof t},Lt=function(t){return"[object Object]"===Object.prototype.toString.call(t)};function At(){}function xt(){}At.prototype.encode=function(t){return[Ot.encode(t)]},Et(xt.prototype),xt.prototype.add=function(t){var e=Ot.decode(t);this.checkPacket(e),this.emit("decoded",e)},xt.prototype.checkPacket=function(t){if(!(Tt(t.type)&&t.type>=Rt.CONNECT&&t.type<=Rt.CONNECT_ERROR))throw new Error("invalid packet type");if(!St(t.nsp))throw new Error("invalid namespace");if(!function(t){switch(t.type){case Rt.CONNECT:return void 0===t.data||Lt(t.data);case Rt.DISCONNECT:return void 0===t.data;case Rt.CONNECT_ERROR:return St(t.data)||Lt(t.data);default:return Array.isArray(t.data)}}(t))throw new Error("invalid payload");if(!(void 0===t.id||Tt(t.id)))throw new Error("invalid packet id")},xt.prototype.destroy=function(){};var Bt=dt.Encoder=At,Ut=dt.Decoder=xt,jt=t({__proto__:null,default:dt,protocol:Ct,get PacketType(){return kt},Encoder:Bt,Decoder:Ut},[dt]);function Pt(t,e,n){return t.on(e,n),function(){t.off(e,n)}}var Nt=Object.freeze({connect:1,connect_error:1,disconnect:1,disconnecting:1,newListener:1,removeListener:1}),qt=function(t){s(r,t);var e=d(r);function r(t,i,o){var s;return n(this,r),(s=e.call(this)).connected=!1,s.receiveBuffer=[],s.sendBuffer=[],s.ids=0,s.acks={},s.flags={},s.io=t,s.nsp=i,o&&o.auth&&(s.auth=o.auth),s.io._autoConnect&&s.open(),s}return i(r,[{key:"disconnected",get:function(){return!this.connected}},{key:"subEvents",value:function(){if(!this.subs){var t=this.io;this.subs=[Pt(t,"open",this.onopen.bind(this)),Pt(t,"packet",this.onpacket.bind(this)),Pt(t,"error",this.onerror.bind(this)),Pt(t,"close",this.onclose.bind(this))]}}},{key:"active",get:function(){return!!this.subs}},{key:"connect",value:function(){return this.connected||(this.subEvents(),this.io._reconnecting||this.io.open(),"open"===this.io._readyState&&this.onopen()),this}},{key:"open",value:function(){return this.connect()}},{key:"send",value:function(){for(var t=arguments.length,e=new Array(t),n=0;n<t;n++)e[n]=arguments[n];return e.unshift("message"),this.emit.apply(this,e),this}},{key:"emit",value:function(t){if(Nt.hasOwnProperty(t))throw new Error('"'+t.toString()+'" is a reserved event name');for(var e=arguments.length,n=new Array(e>1?e-1:0),r=1;r<e;r++)n[r-1]=arguments[r];n.unshift(t);var i={type:kt.EVENT,data:n,options:{}};if(i.options.compress=!1!==this.flags.compress,"function"==typeof n[n.length-1]){var o=this.ids++,s=n.pop();this._registerAckCallback(o,s),i.id=o}var a=this.io.engine&&this.io.engine.transport&&this.io.engine.transport.writable,c=this.flags.volatile&&(!a||!this.connected);return c||(this.connected?(this.notifyOutgoingListeners(i),this.packet(i)):this.sendBuffer.push(i)),this.flags={},this}},{key:"_registerAckCallback",value:function(t,e){var n=this,r=this.flags.timeout;if(void 0!==r){var i=this.io.setTimeoutFn((function(){delete n.acks[t];for(var r=0;r<n.sendBuffer.length;r++)n.sendBuffer[r].id===t&&n.sendBuffer.splice(r,1);e.call(n,new Error("operation has timed out"))}),r);this.acks[t]=function(){n.io.clearTimeoutFn(i);for(var t=arguments.length,r=new Array(t),o=0;o<t;o++)r[o]=arguments[o];e.apply(n,[null].concat(r))}}else this.acks[t]=e}},{key:"packet",value:function(t){t.nsp=this.nsp,this.io._packet(t)}},{key:"onopen",value:function(){var t=this;"function"==typeof this.auth?this.auth((function(e){t.packet({type:kt.CONNECT,data:e})})):this.packet({type:kt.CONNECT,data:this.auth})}},{key:"onerror",value:function(t){this.connected||this.emitReserved("connect_error",t)}},{key:"onclose",value:function(t,e){this.connected=!1,delete this.id,this.emitReserved("disconnect",t,e)}},{key:"onpacket",value:function(t){if(t.nsp===this.nsp)switch(t.type){case kt.CONNECT:if(t.data&&t.data.sid){var e=t.data.sid;this.onconnect(e)}else this.emitReserved("connect_error",new Error("It seems you are trying to reach a Socket.IO server in v2.x with a v3.x client, but they are not compatible (more information here: https://socket.io/docs/v3/migrating-from-2-x-to-3-0/)"));break;case kt.EVENT:case kt.BINARY_EVENT:this.onevent(t);break;case kt.ACK:case kt.BINARY_ACK:this.onack(t);break;case kt.DISCONNECT:this.ondisconnect();break;case kt.CONNECT_ERROR:this.destroy();var n=new Error(t.data.message);n.data=t.data.data,this.emitReserved("connect_error",n)}}},{key:"onevent",value:function(t){var e=t.data||[];null!=t.id&&e.push(this.ack(t.id)),this.connected?this.emitEvent(e):this.receiveBuffer.push(Object.freeze(e))}},{key:"emitEvent",value:function(t){if(this._anyListeners&&this._anyListeners.length){var e,n=m(this._anyListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t)}}catch(t){n.e(t)}finally{n.f()}}v(a(r.prototype),"emit",this).apply(this,t)}},{key:"ack",value:function(t){var e=this,n=!1;return function(){if(!n){n=!0;for(var r=arguments.length,i=new Array(r),o=0;o<r;o++)i[o]=arguments[o];e.packet({type:kt.ACK,id:t,data:i})}}}},{key:"onack",value:function(t){var e=this.acks[t.id];"function"==typeof e&&(e.apply(this,t.data),delete this.acks[t.id])}},{key:"onconnect",value:function(t){this.id=t,this.connected=!0,this.emitBuffered(),this.emitReserved("connect")}},{key:"emitBuffered",value:function(){var t=this;this.receiveBuffer.forEach((function(e){return t.emitEvent(e)})),this.receiveBuffer=[],this.sendBuffer.forEach((function(e){t.notifyOutgoingListeners(e),t.packet(e)})),this.sendBuffer=[]}},{key:"ondisconnect",value:function(){this.destroy(),this.onclose("io server disconnect")}},{key:"destroy",value:function(){this.subs&&(this.subs.forEach((function(t){return t()})),this.subs=void 0),this.io._destroy(this)}},{key:"disconnect",value:function(){return this.connected&&this.packet({type:kt.DISCONNECT}),this.destroy(),this.connected&&this.onclose("io client disconnect"),this}},{key:"close",value:function(){return this.disconnect()}},{key:"compress",value:function(t){return this.flags.compress=t,this}},{key:"volatile",get:function(){return this.flags.volatile=!0,this}},{key:"timeout",value:function(t){return this.flags.timeout=t,this}},{key:"onAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.push(t),this}},{key:"prependAny",value:function(t){return this._anyListeners=this._anyListeners||[],this._anyListeners.unshift(t),this}},{key:"offAny",value:function(t){if(!this._anyListeners)return this;if(t){for(var e=this._anyListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyListeners=[];return this}},{key:"listenersAny",value:function(){return this._anyListeners||[]}},{key:"onAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.push(t),this}},{key:"prependAnyOutgoing",value:function(t){return this._anyOutgoingListeners=this._anyOutgoingListeners||[],this._anyOutgoingListeners.unshift(t),this}},{key:"offAnyOutgoing",value:function(t){if(!this._anyOutgoingListeners)return this;if(t){for(var e=this._anyOutgoingListeners,n=0;n<e.length;n++)if(t===e[n])return e.splice(n,1),this}else this._anyOutgoingListeners=[];return this}},{key:"listenersAnyOutgoing",value:function(){return this._anyOutgoingListeners||[]}},{key:"notifyOutgoingListeners",value:function(t){if(this._anyOutgoingListeners&&this._anyOutgoingListeners.length){var e,n=m(this._anyOutgoingListeners.slice());try{for(n.s();!(e=n.n()).done;){e.value.apply(this,t.data)}}catch(t){n.e(t)}finally{n.f()}}}}]),r}(j);function Mt(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}Mt.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},Mt.prototype.reset=function(){this.attempts=0},Mt.prototype.setMin=function(t){this.ms=t},Mt.prototype.setMax=function(t){this.max=t},Mt.prototype.setJitter=function(t){this.jitter=t};var Dt=function(t){s(o,t);var r=d(o);function o(t,i){var s,a;n(this,o),(s=r.call(this)).nsps={},s.subs=[],t&&"object"===e(t)&&(i=t,t=void 0),(i=i||{}).path=i.path||"/socket.io",s.opts=i,D(l(s),i),s.reconnection(!1!==i.reconnection),s.reconnectionAttempts(i.reconnectionAttempts||1/0),s.reconnectionDelay(i.reconnectionDelay||1e3),s.reconnectionDelayMax(i.reconnectionDelayMax||5e3),s.randomizationFactor(null!==(a=i.randomizationFactor)&&void 0!==a?a:.5),s.backoff=new Mt({min:s.reconnectionDelay(),max:s.reconnectionDelayMax(),jitter:s.randomizationFactor()}),s.timeout(null==i.timeout?2e4:i.timeout),s._readyState="closed",s.uri=t;var c=i.parser||jt;return s.encoder=new c.Encoder,s.decoder=new c.Decoder,s._autoConnect=!1!==i.autoConnect,s._autoConnect&&s.open(),s}return i(o,[{key:"reconnection",value:function(t){return arguments.length?(this._reconnection=!!t,this):this._reconnection}},{key:"reconnectionAttempts",value:function(t){return void 0===t?this._reconnectionAttempts:(this._reconnectionAttempts=t,this)}},{key:"reconnectionDelay",value:function(t){var e;return void 0===t?this._reconnectionDelay:(this._reconnectionDelay=t,null===(e=this.backoff)||void 0===e||e.setMin(t),this)}},{key:"randomizationFactor",value:function(t){var e;return void 0===t?this._randomizationFactor:(this._randomizationFactor=t,null===(e=this.backoff)||void 0===e||e.setJitter(t),this)}},{key:"reconnectionDelayMax",value:function(t){var e;return void 0===t?this._reconnectionDelayMax:(this._reconnectionDelayMax=t,null===(e=this.backoff)||void 0===e||e.setMax(t),this)}},{key:"timeout",value:function(t){return arguments.length?(this._timeout=t,this):this._timeout}},{key:"maybeReconnectOnOpen",value:function(){!this._reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()}},{key:"open",value:function(t){var e=this;if(~this._readyState.indexOf("open"))return this;this.engine=new pt(this.uri,this.opts);var n=this.engine,r=this;this._readyState="opening",this.skipReconnect=!1;var i=Pt(n,"open",(function(){r.onopen(),t&&t()})),o=Pt(n,"error",(function(n){r.cleanup(),r._readyState="closed",e.emitReserved("error",n),t?t(n):r.maybeReconnectOnOpen()}));if(!1!==this._timeout){var s=this._timeout;0===s&&i();var a=this.setTimeoutFn((function(){i(),n.close(),n.emit("error",new Error("timeout"))}),s);this.opts.autoUnref&&a.unref(),this.subs.push((function(){clearTimeout(a)}))}return this.subs.push(i),this.subs.push(o),this}},{key:"connect",value:function(t){return this.open(t)}},{key:"onopen",value:function(){this.cleanup(),this._readyState="open",this.emitReserved("open");var t=this.engine;this.subs.push(Pt(t,"ping",this.onping.bind(this)),Pt(t,"data",this.ondata.bind(this)),Pt(t,"error",this.onerror.bind(this)),Pt(t,"close",this.onclose.bind(this)),Pt(this.decoder,"decoded",this.ondecoded.bind(this)))}},{key:"onping",value:function(){this.emitReserved("ping")}},{key:"ondata",value:function(t){try{this.decoder.add(t)}catch(t){this.onclose("parse error",t)}}},{key:"ondecoded",value:function(t){var e=this;ot((function(){e.emitReserved("packet",t)}),this.setTimeoutFn)}},{key:"onerror",value:function(t){this.emitReserved("error",t)}},{key:"socket",value:function(t,e){var n=this.nsps[t];return n||(n=new qt(this,t,e),this.nsps[t]=n),n}},{key:"_destroy",value:function(t){for(var e=0,n=Object.keys(this.nsps);e<n.length;e++){var r=n[e];if(this.nsps[r].active)return}this._close()}},{key:"_packet",value:function(t){for(var e=this.encoder.encode(t),n=0;n<e.length;n++)this.engine.write(e[n],t.options)}},{key:"cleanup",value:function(){this.subs.forEach((function(t){return t()})),this.subs.length=0,this.decoder.destroy()}},{key:"_close",value:function(){this.skipReconnect=!0,this._reconnecting=!1,this.onclose("forced close"),this.engine&&this.engine.close()}},{key:"disconnect",value:function(){return this._close()}},{key:"onclose",value:function(t,e){this.cleanup(),this.backoff.reset(),this._readyState="closed",this.emitReserved("close",t,e),this._reconnection&&!this.skipReconnect&&this.reconnect()}},{key:"reconnect",value:function(){var t=this;if(this._reconnecting||this.skipReconnect)return this;var e=this;if(this.backoff.attempts>=this._reconnectionAttempts)this.backoff.reset(),this.emitReserved("reconnect_failed"),this._reconnecting=!1;else{var n=this.backoff.duration();this._reconnecting=!0;var r=this.setTimeoutFn((function(){e.skipReconnect||(t.emitReserved("reconnect_attempt",e.backoff.attempts),e.skipReconnect||e.open((function(n){n?(e._reconnecting=!1,e.reconnect(),t.emitReserved("reconnect_error",n)):e.onreconnect()})))}),n);this.opts.autoUnref&&r.unref(),this.subs.push((function(){clearTimeout(r)}))}}},{key:"onreconnect",value:function(){var t=this.backoff.attempts;this._reconnecting=!1,this.backoff.reset(),this.emitReserved("reconnect",t)}}]),o}(j),It={};function Ft(t,n){"object"===e(t)&&(n=t,t=void 0);var r,i=function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"",n=arguments.length>2?arguments[2]:void 0,r=t;n=n||"undefined"!=typeof location&&location,null==t&&(t=n.protocol+"//"+n.host),"string"==typeof t&&("/"===t.charAt(0)&&(t="/"===t.charAt(1)?n.protocol+t:n.host+t),/^(https?|wss?):\/\//.test(t)||(t=void 0!==n?n.protocol+"//"+t:"https://"+t),r=lt(t)),r.port||(/^(http|ws)$/.test(r.protocol)?r.port="80":/^(http|ws)s$/.test(r.protocol)&&(r.port="443")),r.path=r.path||"/";var i=-1!==r.host.indexOf(":")?"["+r.host+"]":r.host;return r.id=r.protocol+"://"+i+":"+r.port+e,r.href=r.protocol+"://"+i+(n&&n.port===r.port?"":":"+r.port),r}(t,(n=n||{}).path||"/socket.io"),o=i.source,s=i.id,a=i.path,c=It[s]&&a in It[s].nsps;return n.forceNew||n["force new connection"]||!1===n.multiplex||c?r=new Dt(o,n):(It[s]||(It[s]=new Dt(o,n)),r=It[s]),i.query&&!n.query&&(n.query=i.queryKey),r.socket(i.path,n)}return o(Ft,{Manager:Dt,Socket:qt,io:Ft,connect:Ft}),Ft}));
 //# sourceMappingURL=socket.io.msgpack.min.js.map

dist/broadcast-operator.d.ts

@@ -14,13 +14,25 @@ import type { BroadcastFlags, Room, SocketId } from "socket.io-adapter";
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * io.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // disconnect all clients in the "room-101" room
+     * io.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -31,5 +43,14 @@ in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * io.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * io.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -40,5 +61,7 @@ except(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
+     * @example
+     * io.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
      * @return a new BroadcastOperator instance
-     * @public
      */
@@ -51,4 +74,6 @@ compress(compress: boolean): BroadcastOperator<EmitEvents, SocketData>;
      *
+     * @example
+     * io.volatile.emit("hello"); // the clients may or may not receive it
+     *
      * @return a new BroadcastOperator instance
-     * @public
      */
@@ -59,4 +84,7 @@ get volatile(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * io.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -67,18 +95,34 @@ get local(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * <pre><code>
-     *
+     * @example
      * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
      */
-    timeout(timeout: number): BroadcastOperator<EventsMap, unknown>;
+    timeout(timeout: number): BroadcastOperator<EmitEvents, SocketData>;
     /**
      * Emits to all clients.
      *
+     * @example
+     * // the “foo” event will be broadcast to all connected clients
+     * io.emit("foo", "bar");
+     *
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an acknowledgement expected from all connected clients
+     * io.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
      * @return Always true
-     * @public
      */
@@ -89,30 +133,75 @@ emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
      *
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Server#serverSideEmit} or
+     * {@link fetchSockets} instead.
      */
     allSockets(): Promise<Set<SocketId>>;
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances. This method works across a cluster of several Socket.IO servers.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // return all Socket instances
+     * const sockets = await io.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await io.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
-    fetchSockets<SocketData = any>(): Promise<RemoteSocket<EmitEvents, SocketData>[]>;
+    fetchSockets(): Promise<RemoteSocket<EmitEvents, SocketData>[]>;
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     *
+     * // make all socket instances join the "room1" room
+     * io.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * io.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsJoin(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances leave the "room1" room
+     * io.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * io.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsLeave(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * io.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * io.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
@@ -145,3 +234,2 @@ disconnectSockets(close?: boolean): void;
      * @param {String|Array} room - room or array of rooms
-     * @public
      */
@@ -153,3 +241,2 @@ join(room: Room | Room[]): void;
      * @param {String} room
-     * @public
      */
@@ -162,4 +249,2 @@ leave(room: Room): void;
      * @return {Socket} self
-     *
-     * @public
      */
@@ -166,0 +251,0 @@ disconnect(close?: boolean): this;

dist/broadcast-operator.js

@@ -16,5 +16,14 @@ "use strict";
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * io.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -32,7 +41,10 @@ to(room) {
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // disconnect all clients in the "room-101" room
+     * io.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -45,5 +57,14 @@ in(room) {
      *
-     * @param room
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * io.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * io.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -63,5 +84,7 @@ except(room) {
      *
+     * @example
+     * io.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
      * @return a new BroadcastOperator instance
-     * @public
      */
@@ -77,4 +100,6 @@ compress(compress) {
      *
+     * @example
+     * io.volatile.emit("hello"); // the clients may or may not receive it
+     *
      * @return a new BroadcastOperator instance
-     * @public
      */
@@ -88,4 +113,7 @@ get volatile() {
      *
-     * @return a new BroadcastOperator instance
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * io.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -99,10 +127,11 @@ get local() {
      *
-     * <pre><code>
-     *
+     * @example
      * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
@@ -117,4 +146,19 @@ */
      *
+     * @example
+     * // the “foo” event will be broadcast to all connected clients
+     * io.emit("foo", "bar");
+     *
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an acknowledgement expected from all connected clients
+     * io.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
      * @return Always true
-     * @public
      */
@@ -181,3 +225,4 @@ emit(ev, ...args) {
      *
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Server#serverSideEmit} or
+     * {@link fetchSockets} instead.
      */
@@ -191,5 +236,24 @@ allSockets() {
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances. This method works across a cluster of several Socket.IO servers.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // return all Socket instances
+     * const sockets = await io.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await io.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
@@ -216,6 +280,15 @@ fetchSockets() {
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     *
+     * // make all socket instances join the "room1" room
+     * io.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * io.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -230,6 +303,14 @@ socketsJoin(room) {
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances leave the "room1" room
+     * io.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * io.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -244,6 +325,14 @@ socketsLeave(room) {
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * io.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * io.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
@@ -277,3 +366,2 @@ disconnectSockets(close = false) {
      * @param {String|Array} room - room or array of rooms
-     * @public
      */
@@ -287,3 +375,2 @@ join(room) {
      * @param {String} room
-     * @public
      */
@@ -298,4 +385,2 @@ leave(room) {
      * @return {Socket} self
-     *
-     * @public
      */
@@ -302,0 +387,0 @@ disconnect(close = false) {

dist/index.d.ts

 /// <reference types="node" />
 /// <reference types="node" />
+/// <reference types="node" />
 import http = require("http");
 import type { Server as HTTPSServer } from "https";
+import type { Http2SecureServer } from "http2";
 import { ServerOptions as EngineOptions, AttachOptions } from "engine.io";
@@ -44,2 +46,28 @@ import { ExtendedError, Namespace, ServerReservedEventsMap } from "./namespace";
 }
+/**
+ * Represents a Socket.IO server.
+ *
+ * @example
+ * import { Server } from "socket.io";
+ *
+ * const io = new Server();
+ *
+ * io.on("connection", (socket) => {
+ *   console.log(`socket ${socket.id} connected`);
+ *
+ *   // send an event to the client
+ *   socket.emit("foo", "bar");
+ *
+ *   socket.on("foobar", () => {
+ *     // an event was received from the client
+ *   });
+ *
+ *   // upon disconnection
+ *   socket.on("disconnect", (reason) => {
+ *     console.log(`socket ${socket.id} disconnected due to ${reason}`);
+ *   });
+ * });
+ *
+ * io.listen(3000);
+ */
 export declare class Server<ListenEvents extends EventsMap = DefaultEventsMap, EmitEvents extends EventsMap = ListenEvents, ServerSideEvents extends EventsMap = DefaultEventsMap, SocketData = any> extends StrictEventEmitter<ServerSideEvents, EmitEvents, ServerReservedEventsMap<ListenEvents, EmitEvents, ServerSideEvents, SocketData>> {
@@ -50,8 +78,5 @@ readonly sockets: Namespace<ListenEvents, EmitEvents, ServerSideEvents, SocketData>;
      *
-     * Example:
+     * @example
+     * const clientsCount = io.engine.clientsCount;
      *
-     * <code>
-     *   const clientsCount = io.engine.clientsCount;
-     * </code>
-     *
      */
@@ -84,7 +109,6 @@ engine: any;
      * @param [opts]
-     * @public
      */
     constructor(opts?: Partial<ServerOptions>);
-    constructor(srv?: http.Server | HTTPSServer | number, opts?: Partial<ServerOptions>);
-    constructor(srv: undefined | Partial<ServerOptions> | http.Server | HTTPSServer | number, opts?: Partial<ServerOptions>);
+    constructor(srv?: http.Server | HTTPSServer | Http2SecureServer | number, opts?: Partial<ServerOptions>);
+    constructor(srv: undefined | Partial<ServerOptions> | http.Server | HTTPSServer | Http2SecureServer | number, opts?: Partial<ServerOptions>);
     /**
@@ -95,3 +119,2 @@ * Sets/gets whether client code is being served.
      * @return self when setting or value when getting
-     * @public
      */
@@ -118,3 +141,2 @@ serveClient(v: boolean): this;
      * @return {Server|String} self when setting or value when getting
-     * @public
      */
@@ -127,3 +149,2 @@ path(v: string): this;
      * @param v
-     * @public
      */
@@ -138,3 +159,2 @@ connectTimeout(v: number): this;
      * @return self when setting or value when getting
-     * @public
      */
@@ -149,5 +169,4 @@ adapter(): AdapterConstructor | undefined;
      * @return self
-     * @public
      */
-    listen(srv: http.Server | HTTPSServer | number, opts?: Partial<ServerOptions>): this;
+    listen(srv: http.Server | HTTPSServer | Http2SecureServer | number, opts?: Partial<ServerOptions>): this;
     /**
@@ -159,5 +178,4 @@ * Attaches socket.io to a server or port.
      * @return self
-     * @public
      */
-    attach(srv: http.Server | HTTPSServer | number, opts?: Partial<ServerOptions>): this;
+    attach(srv: http.Server | HTTPSServer | Http2SecureServer | number, opts?: Partial<ServerOptions>): this;
     attachApp(app: any, opts?: Partial<ServerOptions>): void;
@@ -199,3 +217,2 @@ /**
      * @return self
-     * @public
      */
@@ -214,5 +231,16 @@ bind(engine: any): this;
      *
-     * @param {String|RegExp|Function} name nsp name
+     * @example
+     * // with a simple string
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // with a regex
+     * const dynamicNsp = io.of(/^\/dynamic-\d+$/).on("connection", (socket) => {
+     *   const namespace = socket.nsp; // newNamespace.name === "/dynamic-101"
+     *
+     *   // broadcast to all clients in the given sub-namespace
+     *   namespace.emit("hello");
+     * });
+     *
+     * @param name - nsp name
      * @param fn optional, nsp `connection` ev handler
-     * @public
      */
@@ -224,10 +252,14 @@ of(name: string | RegExp | ParentNspNameMatchFn, fn?: (socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>) => void): Namespace<ListenEvents, EmitEvents, ServerSideEvents, SocketData>;
      * @param [fn] optional, called as `fn([err])` on error OR all conns closed
-     * @public
      */
     close(fn?: (err?: Error) => void): void;
     /**
-     * Sets up namespace middleware.
+     * Registers a middleware, which is a function that gets executed for every incoming {@link Socket}.
      *
-     * @return self
-     * @public
+     * @example
+     * io.use((socket, next) => {
+     *   // ...
+     *   next();
+     * });
+     *
+     * @param fn - the middleware function
      */
@@ -238,13 +270,25 @@ use(fn: (socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>, next: (err?: ExtendedError) => void) => void): this;
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * io.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * // disconnect all clients in the "room-101" room
+     * io.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -255,27 +299,63 @@ in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @param name
-     * @return self
-     * @public
+     * @example
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * io.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * io.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
-    except(name: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
+    except(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
      * Sends a `message` event to all clients.
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * io.send("hello");
+     *
+     * // this is equivalent to
+     * io.emit("message", "hello");
+     *
      * @return self
-     * @public
      */
     send(...args: EventParams<EmitEvents, "message">): this;
     /**
-     * Sends a `message` event to all clients.
+     * Sends a `message` event to all clients. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
     write(...args: EventParams<EmitEvents, "message">): this;
     /**
-     * Emit a packet to other Socket.IO servers
+     * Sends a message to the other Socket.IO servers of the cluster.
      *
+     * @example
+     * io.serverSideEmit("hello", "world");
+     *
+     * io.on("hello", (arg1) => {
+     *   console.log(arg1); // prints "world"
+     * });
+     *
+     * // acknowledgements (without binary content) are supported too:
+     * io.serverSideEmit("ping", (err, responses) => {
+     *  if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
+     * io.on("ping", (cb) => {
+     *   cb("pong");
+     * });
+     *
      * @param ev - the event name
      * @param args - an array of arguments, which may include an acknowledgement callback at the end
-     * @public
      */
@@ -286,3 +366,4 @@ serverSideEmit<Ev extends EventNames<ServerSideEvents>>(ev: Ev, ...args: EventParams<ServerSideEvents, Ev>): boolean;
      *
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Server#serverSideEmit} or
+     * {@link Server#fetchSockets} instead.
      */
@@ -293,5 +374,7 @@ allSockets(): Promise<Set<SocketId>>;
      *
+     * @example
+     * io.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
-     * @return self
-     * @public
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -304,4 +387,6 @@ compress(compress: boolean): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @return self
-     * @public
+     * @example
+     * io.volatile.emit("hello"); // the clients may or may not receive it
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -312,45 +397,93 @@ get volatile(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @return self
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * io.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     get local(): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Adds a timeout in milliseconds for the next operation
+     * Adds a timeout in milliseconds for the next operation.
      *
-     * <pre><code>
-     *
+     * @example
      * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
      */
-    timeout(timeout: number): BroadcastOperator<EventsMap, unknown>;
+    timeout(timeout: number): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // return all Socket instances
+     * const sockets = await io.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await io.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
     fetchSockets(): Promise<RemoteSocket<EmitEvents, SocketData>[]>;
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     *
+     * // make all socket instances join the "room1" room
+     * io.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * io.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsJoin(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances leave the "room1" room
+     * io.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * io.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsLeave(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * io.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * io.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
@@ -357,0 +490,0 @@ disconnectSockets(close?: boolean): void;

dist/index.js

@@ -52,2 +52,28 @@ "use strict";
 const dotMapRegex = /\.map/;
+/**
+ * Represents a Socket.IO server.
+ *
+ * @example
+ * import { Server } from "socket.io";
+ *
+ * const io = new Server();
+ *
+ * io.on("connection", (socket) => {
+ *   console.log(`socket ${socket.id} connected`);
+ *
+ *   // send an event to the client
+ *   socket.emit("foo", "bar");
+ *
+ *   socket.on("foobar", () => {
+ *     // an event was received from the client
+ *   });
+ *
+ *   // upon disconnection
+ *   socket.on("disconnect", (reason) => {
+ *     console.log(`socket ${socket.id} disconnected due to ${reason}`);
+ *   });
+ * });
+ *
+ * io.listen(3000);
+ */
 class Server extends typed_events_1.StrictEventEmitter {
@@ -151,3 +177,2 @@ constructor(srv, opts = {}) {
      * @return self
-     * @public
      */
@@ -163,3 +188,2 @@ listen(srv, opts = {}) {
      * @return self
-     * @public
      */
@@ -348,3 +372,2 @@ attach(srv, opts = {}) {
      * @return self
-     * @public
      */
@@ -375,5 +398,16 @@ bind(engine) {
      *
-     * @param {String|RegExp|Function} name nsp name
+     * @example
+     * // with a simple string
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // with a regex
+     * const dynamicNsp = io.of(/^\/dynamic-\d+$/).on("connection", (socket) => {
+     *   const namespace = socket.nsp; // newNamespace.name === "/dynamic-101"
+     *
+     *   // broadcast to all clients in the given sub-namespace
+     *   namespace.emit("hello");
+     * });
+     *
+     * @param name - nsp name
      * @param fn optional, nsp `connection` ev handler
-     * @public
      */
@@ -416,3 +450,2 @@ of(name, fn) {
      * @param [fn] optional, called as `fn([err])` on error OR all conns closed
-     * @public
      */
@@ -434,6 +467,11 @@ close(fn) {
     /**
-     * Sets up namespace middleware.
+     * Registers a middleware, which is a function that gets executed for every incoming {@link Socket}.
      *
-     * @return self
-     * @public
+     * @example
+     * io.use((socket, next) => {
+     *   // ...
+     *   next();
+     * });
+     *
+     * @param fn - the middleware function
      */
@@ -447,5 +485,14 @@ use(fn) {
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * io.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * io.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -456,7 +503,10 @@ to(room) {
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * // disconnect all clients in the "room-101" room
+     * io.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -469,8 +519,17 @@ in(room) {
      *
-     * @param name
-     * @return self
-     * @public
+     * @example
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * io.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * io.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * io.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
-    except(name) {
-        return this.sockets.except(name);
+    except(room) {
+        return this.sockets.except(room);
     }
@@ -480,4 +539,13 @@ /**
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * io.send("hello");
+     *
+     * // this is equivalent to
+     * io.emit("message", "hello");
+     *
      * @return self
-     * @public
      */
@@ -489,6 +557,5 @@ send(...args) {
     /**
-     * Sends a `message` event to all clients.
+     * Sends a `message` event to all clients. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
@@ -500,7 +567,26 @@ write(...args) {
     /**
-     * Emit a packet to other Socket.IO servers
+     * Sends a message to the other Socket.IO servers of the cluster.
      *
+     * @example
+     * io.serverSideEmit("hello", "world");
+     *
+     * io.on("hello", (arg1) => {
+     *   console.log(arg1); // prints "world"
+     * });
+     *
+     * // acknowledgements (without binary content) are supported too:
+     * io.serverSideEmit("ping", (err, responses) => {
+     *  if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
+     * io.on("ping", (cb) => {
+     *   cb("pong");
+     * });
+     *
      * @param ev - the event name
      * @param args - an array of arguments, which may include an acknowledgement callback at the end
-     * @public
      */
@@ -513,3 +599,4 @@ serverSideEmit(ev, ...args) {
      *
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Server#serverSideEmit} or
+     * {@link Server#fetchSockets} instead.
      */
@@ -522,5 +609,7 @@ allSockets() {
      *
+     * @example
+     * io.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
-     * @return self
-     * @public
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -535,4 +624,6 @@ compress(compress) {
      *
-     * @return self
-     * @public
+     * @example
+     * io.volatile.emit("hello"); // the clients may or may not receive it
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -545,4 +636,7 @@ get volatile() {
      *
-     * @return self
-     * @public
+     * @example
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * io.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -553,12 +647,13 @@ get local() {
     /**
-     * Adds a timeout in milliseconds for the next operation
+     * Adds a timeout in milliseconds for the next operation.
      *
-     * <pre><code>
-     *
+     * @example
      * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
@@ -570,5 +665,24 @@ */
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // return all Socket instances
+     * const sockets = await io.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await io.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
@@ -579,6 +693,15 @@ fetchSockets() {
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     *
+     * // make all socket instances join the "room1" room
+     * io.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * io.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -589,6 +712,14 @@ socketsJoin(room) {
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances leave the "room1" room
+     * io.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * io.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -599,6 +730,14 @@ socketsLeave(room) {
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * io.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * io.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
@@ -605,0 +744,0 @@ disconnectSockets(close = false) {

dist/namespace.d.ts

@@ -18,2 +18,55 @@ import { Socket } from "./socket";
 export declare const RESERVED_EVENTS: ReadonlySet<string | Symbol>;
+/**
+ * A Namespace is a communication channel that allows you to split the logic of your application over a single shared
+ * connection.
+ *
+ * Each namespace has its own:
+ *
+ * - event handlers
+ *
+ * ```
+ * io.of("/orders").on("connection", (socket) => {
+ *   socket.on("order:list", () => {});
+ *   socket.on("order:create", () => {});
+ * });
+ *
+ * io.of("/users").on("connection", (socket) => {
+ *   socket.on("user:list", () => {});
+ * });
+ * ```
+ *
+ * - rooms
+ *
+ * ```
+ * const orderNamespace = io.of("/orders");
+ *
+ * orderNamespace.on("connection", (socket) => {
+ *   socket.join("room1");
+ *   orderNamespace.to("room1").emit("hello");
+ * });
+ *
+ * const userNamespace = io.of("/users");
+ *
+ * userNamespace.on("connection", (socket) => {
+ *   socket.join("room1"); // distinct from the room in the "orders" namespace
+ *   userNamespace.to("room1").emit("holà");
+ * });
+ * ```
+ *
+ * - middlewares
+ *
+ * ```
+ * const orderNamespace = io.of("/orders");
+ *
+ * orderNamespace.use((socket, next) => {
+ *   // ensure the socket has access to the "orders" namespace
+ * });
+ *
+ * const userNamespace = io.of("/users");
+ *
+ * userNamespace.use((socket, next) => {
+ *   // ensure the socket has access to the "users" namespace
+ * });
+ * ```
+ */
 export declare class Namespace<ListenEvents extends EventsMap = DefaultEventsMap, EmitEvents extends EventsMap = ListenEvents, ServerSideEvents extends EventsMap = DefaultEventsMap, SocketData = any> extends StrictEventEmitter<ServerSideEvents, EmitEvents, NamespaceReservedEventsMap<ListenEvents, EmitEvents, ServerSideEvents, SocketData>> {
@@ -45,6 +98,13 @@ readonly name: string;
     /**
-     * Sets up namespace middleware.
+     * Registers a middleware, which is a function that gets executed for every incoming {@link Socket}.
      *
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.use((socket, next) => {
+     *   // ...
+     *   next();
+     * });
+     *
+     * @param fn - the middleware function
      */
@@ -63,13 +123,29 @@ use(fn: (socket: Socket<ListenEvents, EmitEvents, ServerSideEvents, SocketData>, next: (err?: ExtendedError) => void) => void): this;
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * myNamespace.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * myNamespace.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * myNamespace.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // disconnect all clients in the "room-101" room
+     * myNamespace.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -80,5 +156,16 @@ in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * myNamespace.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * myNamespace.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * myNamespace.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -100,6 +187,22 @@ except(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Emits to all clients.
+     * Emits to all connected clients.
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.emit("hello", "world");
+     *
+     * // all serializable datastructures are supported (no need to call JSON.stringify)
+     * myNamespace.emit("hello", 1, "2", { 3: ["4"], 5: Uint8Array.from([6]) });
+     *
+     * // with an acknowledgement from the clients
+     * myNamespace.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
      * @return Always true
-     * @public
      */
@@ -110,19 +213,50 @@ emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.send("hello");
+     *
+     * // this is equivalent to
+     * myNamespace.emit("message", "hello");
+     *
      * @return self
-     * @public
      */
     send(...args: EventParams<EmitEvents, "message">): this;
     /**
-     * Sends a `message` event to all clients.
+     * Sends a `message` event to all clients. Sends a `message` event. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
     write(...args: EventParams<EmitEvents, "message">): this;
     /**
-     * Emit a packet to other Socket.IO servers
+     * Sends a message to the other Socket.IO servers of the cluster.
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.serverSideEmit("hello", "world");
+     *
+     * myNamespace.on("hello", (arg1) => {
+     *   console.log(arg1); // prints "world"
+     * });
+     *
+     * // acknowledgements (without binary content) are supported too:
+     * myNamespace.serverSideEmit("ping", (err, responses) => {
+     *  if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
+     * myNamespace.on("ping", (cb) => {
+     *   cb("pong");
+     * });
+     *
      * @param ev - the event name
      * @param args - an array of arguments, which may include an acknowledgement callback at the end
-     * @public
      */
@@ -141,4 +275,4 @@ serverSideEmit<Ev extends EventNames<ServerSideEvents>>(ev: Ev, ...args: EventParams<ServerSideEvents, Ev>): boolean;
      *
-     * @return self
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Namespace#serverSideEmit} or
+     * {@link Namespace#fetchSockets} instead.
      */
@@ -149,5 +283,9 @@ allSockets(): Promise<Set<SocketId>>;
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
      * @return self
-     * @public
      */
@@ -160,4 +298,8 @@ compress(compress: boolean): BroadcastOperator<EmitEvents, SocketData>;
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.volatile.emit("hello"); // the clients may or may not receive it
+     *
      * @return self
-     * @public
      */
@@ -168,47 +310,106 @@ get volatile(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * myNamespace.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     get local(): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Adds a timeout in milliseconds for the next operation
+     * Adds a timeout in milliseconds for the next operation.
      *
-     * <pre><code>
+     * @example
+     * const myNamespace = io.of("/my-namespace");
      *
-     * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     * myNamespace.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
      */
-    timeout(timeout: number): BroadcastOperator<EventsMap, unknown>;
+    timeout(timeout: number): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // return all Socket instances
+     * const sockets = await myNamespace.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await myNamespace.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
     fetchSockets(): Promise<RemoteSocket<EmitEvents, SocketData>[]>;
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances join the "room1" room
+     * myNamespace.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * myNamespace.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsJoin(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances leave the "room1" room
+     * myNamespace.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * myNamespace.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
     socketsLeave(room: Room | Room[]): void;
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * myNamespace.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * myNamespace.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
     disconnectSockets(close?: boolean): void;
 }

dist/namespace.js

@@ -13,2 +13,55 @@ "use strict";
 exports.RESERVED_EVENTS = new Set(["connect", "connection", "new_namespace"]);
+/**
+ * A Namespace is a communication channel that allows you to split the logic of your application over a single shared
+ * connection.
+ *
+ * Each namespace has its own:
+ *
+ * - event handlers
+ *
+ * ```
+ * io.of("/orders").on("connection", (socket) => {
+ *   socket.on("order:list", () => {});
+ *   socket.on("order:create", () => {});
+ * });
+ *
+ * io.of("/users").on("connection", (socket) => {
+ *   socket.on("user:list", () => {});
+ * });
+ * ```
+ *
+ * - rooms
+ *
+ * ```
+ * const orderNamespace = io.of("/orders");
+ *
+ * orderNamespace.on("connection", (socket) => {
+ *   socket.join("room1");
+ *   orderNamespace.to("room1").emit("hello");
+ * });
+ *
+ * const userNamespace = io.of("/users");
+ *
+ * userNamespace.on("connection", (socket) => {
+ *   socket.join("room1"); // distinct from the room in the "orders" namespace
+ *   userNamespace.to("room1").emit("holà");
+ * });
+ * ```
+ *
+ * - middlewares
+ *
+ * ```
+ * const orderNamespace = io.of("/orders");
+ *
+ * orderNamespace.use((socket, next) => {
+ *   // ensure the socket has access to the "orders" namespace
+ * });
+ *
+ * const userNamespace = io.of("/users");
+ *
+ * userNamespace.use((socket, next) => {
+ *   // ensure the socket has access to the "users" namespace
+ * });
+ * ```
+ */
 class Namespace extends typed_events_1.StrictEventEmitter {
@@ -44,6 +97,13 @@ /**
     /**
-     * Sets up namespace middleware.
+     * Registers a middleware, which is a function that gets executed for every incoming {@link Socket}.
      *
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.use((socket, next) => {
+     *   // ...
+     *   next();
+     * });
+     *
+     * @param fn - the middleware function
      */
@@ -82,5 +142,16 @@ use(fn) {
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the “foo” event will be broadcast to all connected clients in the “room-101” room
+     * myNamespace.to("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms (a client will be notified at most once)
+     * myNamespace.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * myNamespace.to("room-101").to("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -91,7 +162,12 @@ to(room) {
     /**
-     * Targets a room when emitting.
+     * Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // disconnect all clients in the "room-101" room
+     * myNamespace.in("room-101").disconnectSockets();
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -104,5 +180,16 @@ in(room) {
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     * myNamespace.except("room-101").emit("foo", "bar");
+     *
+     * // with an array of rooms
+     * myNamespace.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     * // with multiple chained calls
+     * myNamespace.except("room-101").except("room-102").emit("foo", "bar");
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -171,6 +258,22 @@ except(room) {
     /**
-     * Emits to all clients.
+     * Emits to all connected clients.
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.emit("hello", "world");
+     *
+     * // all serializable datastructures are supported (no need to call JSON.stringify)
+     * myNamespace.emit("hello", 1, "2", { 3: ["4"], 5: Uint8Array.from([6]) });
+     *
+     * // with an acknowledgement from the clients
+     * myNamespace.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
      * @return Always true
-     * @public
      */
@@ -183,4 +286,15 @@ emit(ev, ...args) {
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.send("hello");
+     *
+     * // this is equivalent to
+     * myNamespace.emit("message", "hello");
+     *
      * @return self
-     * @public
      */
@@ -192,6 +306,5 @@ send(...args) {
     /**
-     * Sends a `message` event to all clients.
+     * Sends a `message` event to all clients. Sends a `message` event. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
@@ -203,7 +316,28 @@ write(...args) {
     /**
-     * Emit a packet to other Socket.IO servers
+     * Sends a message to the other Socket.IO servers of the cluster.
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.serverSideEmit("hello", "world");
+     *
+     * myNamespace.on("hello", (arg1) => {
+     *   console.log(arg1); // prints "world"
+     * });
+     *
+     * // acknowledgements (without binary content) are supported too:
+     * myNamespace.serverSideEmit("ping", (err, responses) => {
+     *  if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
+     * });
+     *
+     * myNamespace.on("ping", (cb) => {
+     *   cb("pong");
+     * });
+     *
      * @param ev - the event name
      * @param args - an array of arguments, which may include an acknowledgement callback at the end
-     * @public
      */
@@ -231,4 +365,4 @@ serverSideEmit(ev, ...args) {
      *
-     * @return self
-     * @public
+     * @deprecated this method will be removed in the next major release, please use {@link Namespace#serverSideEmit} or
+     * {@link Namespace#fetchSockets} instead.
      */
@@ -241,5 +375,9 @@ allSockets() {
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.compress(false).emit("hello");
+     *
      * @param compress - if `true`, compresses the sending data
      * @return self
-     * @public
      */
@@ -254,4 +392,8 @@ compress(compress) {
      *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * myNamespace.volatile.emit("hello"); // the clients may or may not receive it
+     *
      * @return self
-     * @public
      */
@@ -264,4 +406,9 @@ get volatile() {
      *
-     * @return self
-     * @public
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // the “foo” event will be broadcast to all connected clients on this node
+     * myNamespace.local.emit("foo", "bar");
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -272,12 +419,15 @@ get local() {
     /**
-     * Adds a timeout in milliseconds for the next operation
+     * Adds a timeout in milliseconds for the next operation.
      *
-     * <pre><code>
+     * @example
+     * const myNamespace = io.of("/my-namespace");
      *
-     * io.timeout(1000).emit("some-event", (err, responses) => {
-     *   // ...
+     * myNamespace.timeout(1000).emit("some-event", (err, responses) => {
+     *   if (err) {
+     *     // some clients did not acknowledge the event in the given delay
+     *   } else {
+     *     console.log(responses); // one response per client
+     *   }
      * });
      *
-     * </pre></code>
-     *
      * @param timeout
@@ -289,5 +439,26 @@ */
     /**
-     * Returns the matching socket instances
+     * Returns the matching socket instances.
      *
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // return all Socket instances
+     * const sockets = await myNamespace.fetchSockets();
+     *
+     * // return all Socket instances in the "room1" room
+     * const sockets = await myNamespace.in("room1").fetchSockets();
+     *
+     * for (const socket of sockets) {
+     *   console.log(socket.id);
+     *   console.log(socket.handshake);
+     *   console.log(socket.rooms);
+     *   console.log(socket.data);
+     *
+     *   socket.emit("hello");
+     *   socket.join("room1");
+     *   socket.leave("room2");
+     *   socket.disconnect();
+     * }
      */
@@ -298,6 +469,16 @@ fetchSockets() {
     /**
-     * Makes the matching socket instances join the specified rooms
+     * Makes the matching socket instances join the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances join the "room1" room
+     * myNamespace.socketsJoin("room1");
+     *
+     * // make all socket instances in the "room1" room join the "room2" and "room3" rooms
+     * myNamespace.in("room1").socketsJoin(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -308,6 +489,16 @@ socketsJoin(room) {
     /**
-     * Makes the matching socket instances leave the specified rooms
+     * Makes the matching socket instances leave the specified rooms.
      *
-     * @param room
-     * @public
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances leave the "room1" room
+     * myNamespace.socketsLeave("room1");
+     *
+     * // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
+     * myNamespace.in("room1").socketsLeave(["room2", "room3"]);
+     *
+     * @param room - a room, or an array of rooms
      */
@@ -318,6 +509,16 @@ socketsLeave(room) {
     /**
-     * Makes the matching socket instances disconnect
+     * Makes the matching socket instances disconnect.
      *
+     * Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
+     *
+     * @example
+     * const myNamespace = io.of("/my-namespace");
+     *
+     * // make all socket instances disconnect (the connections might be kept alive for other namespaces)
+     * myNamespace.disconnectSockets();
+     *
+     * // make all socket instances in the "room1" room disconnect and close the underlying connections
+     * myNamespace.in("room1").disconnectSockets(true);
+     *
      * @param close - whether to close the underlying connection
-     * @public
      */
@@ -324,0 +525,0 @@ disconnectSockets(close = false) {

dist/socket.d.ts

@@ -11,5 +11,6 @@ /// <reference types="node" />
 import { BroadcastOperator } from "./broadcast-operator";
+export declare type DisconnectReason = "transport error" | "transport close" | "forced close" | "ping timeout" | "parse error" | "server shutting down" | "forced server close" | "client namespace disconnect" | "server namespace disconnect";
 export interface SocketReservedEventsMap {
-    disconnect: (reason: string) => void;
-    disconnecting: (reason: string) => void;
+    disconnect: (reason: DisconnectReason) => void;
+    disconnecting: (reason: DisconnectReason) => void;
     error: (err: Error) => void;
@@ -69,11 +70,62 @@ }
 export declare type Event = [string, ...any[]];
+/**
+ * This is the main object for interacting with a client.
+ *
+ * A Socket belongs to a given {@link Namespace} and uses an underlying {@link Client} to communicate.
+ *
+ * Within each {@link Namespace}, you can also define arbitrary channels (called "rooms") that the {@link Socket} can
+ * join and leave. That provides a convenient way to broadcast to a group of socket instances.
+ *
+ * @example
+ * io.on("connection", (socket) => {
+ *   console.log(`socket ${socket.id} connected`);
+ *
+ *   // send an event to the client
+ *   socket.emit("foo", "bar");
+ *
+ *   socket.on("foobar", () => {
+ *     // an event was received from the client
+ *   });
+ *
+ *   // join the room named "room1"
+ *   socket.join("room1");
+ *
+ *   // broadcast to everyone in the room named "room1"
+ *   io.to("room1").emit("hello");
+ *
+ *   // upon disconnection
+ *   socket.on("disconnect", (reason) => {
+ *     console.log(`socket ${socket.id} disconnected due to ${reason}`);
+ *   });
+ * });
+ */
 export declare class Socket<ListenEvents extends EventsMap = DefaultEventsMap, EmitEvents extends EventsMap = ListenEvents, ServerSideEvents extends EventsMap = DefaultEventsMap, SocketData = any> extends StrictEventEmitter<ListenEvents, EmitEvents, SocketReservedEventsMap> {
     readonly nsp: Namespace<ListenEvents, EmitEvents, ServerSideEvents>;
     readonly client: Client<ListenEvents, EmitEvents, ServerSideEvents>;
+    /**
+     * An unique identifier for the session.
+     */
     readonly id: SocketId;
+    /**
+     * The handshake details.
+     */
     readonly handshake: Handshake;
     /**
-     * Additional information that can be attached to the Socket instance and which will be used in the fetchSockets method
+     * Additional information that can be attached to the Socket instance and which will be used in the
+     * {@link Server.fetchSockets()} method.
      */
     data: Partial<SocketData>;
+    /**
+     * Whether the socket is currently connected or not.
+     *
+     * @example
+     * io.use((socket, next) => {
+     *   console.log(socket.connected); // false
+     *   next();
+     * });
+     *
+     * io.on("connection", (socket) => {
+     *   console.log(socket.connected); // true
+     * });
+     */
     connected: boolean;
@@ -105,4 +157,16 @@ private readonly server;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.emit("hello", "world");
+     *
+     *   // all serializable datastructures are supported (no need to call JSON.stringify)
+     *   socket.emit("hello", 1, "2", { 3: ["4"], 5: Buffer.from([6]) });
+     *
+     *   // with an acknowledgement from the client
+     *   socket.emit("hello", "world", (val) => {
+     *     // ...
+     *   });
+     * });
+     *
      * @return Always returns `true`.
-     * @public
      */
@@ -117,13 +181,32 @@ emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients in the “room-101” room, except this socket
+     *   socket.to("room-101").emit("foo", "bar");
+     *
+     *   // the code above is equivalent to:
+     *   io.to("room-101").except(socket.id).emit("foo", "bar");
+     *
+     *   // with an array of rooms (a client will be notified at most once)
+     *   socket.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     *   // with multiple chained calls
+     *   socket.to("room-101").to("room-102").emit("foo", "bar");
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
     to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
     /**
-     * Targets a room when broadcasting.
+     * Targets a room when broadcasting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // disconnect all clients in the "room-101" room, except this socket
+     *   socket.in("room-101").disconnectSockets();
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -134,5 +217,17 @@ in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     *   // and this socket
+     *   socket.except("room-101").emit("foo", "bar");
+     *
+     *   // with an array of rooms
+     *   socket.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     *   // with multiple chained calls
+     *   socket.except("room-101").except("room-102").emit("foo", "bar");
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -143,11 +238,21 @@ except(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.send("hello");
+     *
+     *   // this is equivalent to
+     *   socket.emit("message", "hello");
+     * });
+     *
      * @return self
-     * @public
      */
     send(...args: EventParams<EmitEvents, "message">): this;
     /**
-     * Sends a `message` event.
+     * Sends a `message` event. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
@@ -166,5 +271,13 @@ write(...args: EventParams<EmitEvents, "message">): this;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // join a single room
+     *   socket.join("room1");
+     *
+     *   // join multiple rooms
+     *   socket.join(["room1", "room2"]);
+     * });
+     *
      * @param {String|Array} rooms - room or array of rooms
      * @return a Promise or nothing, depending on the adapter
-     * @public
      */
@@ -175,5 +288,13 @@ join(rooms: Room | Array<Room>): Promise<void> | void;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // leave a single room
+     *   socket.leave("room1");
+     *
+     *   // leave multiple rooms
+     *   socket.leave("room1").leave("room2");
+     * });
+     *
      * @param {String} room
      * @return a Promise or nothing, depending on the adapter
-     * @public
      */
@@ -243,3 +364,3 @@ leave(room: string): Promise<void> | void;
      */
-    _onclose(reason: string): this | undefined;
+    _onclose(reason: DisconnectReason): this | undefined;
     /**
@@ -262,6 +383,13 @@ * Makes the socket leave all the rooms it was part of and prevents it from joining any other room
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // disconnect this socket (the connection might be kept alive for other namespaces)
+     *   socket.disconnect();
+     *
+     *   // disconnect this socket and close the underlying connection
+     *   socket.disconnect(true);
+     * })
+     *
      * @param {Boolean} close - if `true`, closes the underlying connection
-     * @return {Socket} self
-     *
-     * @public
+     * @return self
      */
@@ -272,5 +400,9 @@ disconnect(close?: boolean): this;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.compress(false).emit("hello");
+     * });
+     *
      * @param {Boolean} compress - if `true`, compresses the sending data
      * @return {Socket} self
-     * @public
      */
@@ -283,4 +415,8 @@ compress(compress: boolean): this;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.volatile.emit("hello"); // the client may or may not receive it
+     * });
+     *
      * @return {Socket} self
-     * @public
      */
@@ -292,4 +428,9 @@ get volatile(): this;
      *
-     * @return {Socket} self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients, except this socket
+     *   socket.broadcast.emit("foo", "bar");
+     * });
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -300,4 +441,9 @@ get broadcast(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * @return {Socket} self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients on this node, except this socket
+     *   socket.local.emit("foo", "bar");
+     * });
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -309,12 +455,12 @@ get local(): BroadcastOperator<EmitEvents, SocketData>;
      *
-     * ```
-     * socket.timeout(5000).emit("my-event", (err) => {
-     *   if (err) {
-     *     // the client did not acknowledge the event in the given delay
-     *   }
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.timeout(5000).emit("my-event", (err) => {
+     *     if (err) {
+     *       // the client did not acknowledge the event in the given delay
+     *     }
+     *   });
      * });
-     * ```
      *
      * @returns self
-     * @public
      */
@@ -332,5 +478,21 @@ timeout(timeout: number): this;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.use(([event, ...args], next) => {
+     *     if (isUnauthorized(event)) {
+     *       return next(new Error("unauthorized event"));
+     *     }
+     *     // do not forget to call next
+     *     next();
+     *   });
+     *
+     *   socket.on("error", (err) => {
+     *     if (err && err.message === "unauthorized event") {
+     *       socket.disconnect();
+     *     }
+     *   });
+     * });
+     *
      * @param {Function} fn - middleware function (event, next)
      * @return {Socket} self
-     * @public
      */
@@ -352,4 +514,2 @@ use(fn: (event: Event, next: (err?: Error) => void) => void): this;
      * A reference to the request that originated the underlying Engine.IO Socket.
-     *
-     * @public
      */
@@ -360,7 +520,23 @@ get request(): IncomingMessage;
      *
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   console.log(socket.conn.transport.name); // prints "polling" or "websocket"
+     *
+     *   socket.conn.once("upgrade", () => {
+     *     console.log(socket.conn.transport.name); // prints "websocket"
+     *   });
+     * });
      */
     get conn(): import("engine.io").Socket;
     /**
-     * @public
+     * Returns the rooms the socket is currently in.
+     *
+     * @example
+     * io.on("connection", (socket) => {
+     *   console.log(socket.rooms); // Set { <socket.id> }
+     *
+     *   socket.join("room1");
+     *
+     *   console.log(socket.rooms); // Set { <socket.id>, "room1" }
+     * });
      */
@@ -372,4 +548,10 @@ get rooms(): Set<Room>;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.onAny((event, ...args) => {
+     *     console.log(`got event ${event}`);
+     *   });
+     * });
+     *
      * @param listener
-     * @public
      */
@@ -382,3 +564,2 @@ onAny(listener: (...args: any[]) => void): this;
      * @param listener
-     * @public
      */
@@ -389,4 +570,18 @@ prependAny(listener: (...args: any[]) => void): this;
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   const catchAllListener = (event, ...args) => {
+     *     console.log(`got event ${event}`);
+     *   }
+     *
+     *   socket.onAny(catchAllListener);
+     *
+     *   // remove a specific listener
+     *   socket.offAny(catchAllListener);
+     *
+     *   // or remove all listeners
+     *   socket.offAny();
+     * });
+     *
      * @param listener
-     * @public
      */
@@ -397,21 +592,18 @@ offAny(listener?: (...args: any[]) => void): this;
      * e.g. to remove listeners.
-     *
-     * @public
      */
     listenersAny(): ((...args: any[]) => void)[];
     /**
-     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
-     * callback.
+     * Adds a listener that will be fired when any event is sent. The event name is passed as the first argument to
+     * the callback.
      *
-     * @param listener
+     * Note: acknowledgements sent to the client are not included.
      *
-     * <pre><code>
-     *
-     * socket.onAnyOutgoing((event, ...args) => {
-     *   console.log(event);
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.onAnyOutgoing((event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   });
      * });
      *
-     * </pre></code>
-     *
-     * @public
+     * @param listener
      */
@@ -423,34 +615,31 @@ onAnyOutgoing(listener: (...args: any[]) => void): this;
      *
-     * @param listener
-     *
-     * <pre><code>
-     *
-     * socket.prependAnyOutgoing((event, ...args) => {
-     *   console.log(event);
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.prependAnyOutgoing((event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   });
      * });
      *
-     * </pre></code>
-     *
-     * @public
+     * @param listener
      */
     prependAnyOutgoing(listener: (...args: any[]) => void): this;
     /**
-     * Removes the listener that will be fired when any event is emitted.
+     * Removes the listener that will be fired when any event is sent.
      *
-     * @param listener
+     * @example
+     * io.on("connection", (socket) => {
+     *   const catchAllListener = (event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   }
      *
-     * <pre><code>
+     *   socket.onAnyOutgoing(catchAllListener);
      *
-     * const handler = (event, ...args) => {
-     *   console.log(event);
-     * }
+     *   // remove a specific listener
+     *   socket.offAnyOutgoing(catchAllListener);
      *
-     * socket.onAnyOutgoing(handler);
+     *   // or remove all listeners
+     *   socket.offAnyOutgoing();
+     * });
      *
-     * // then later
-     * socket.offAnyOutgoing(handler);
-     *
-     * </pre></code>
-     *
-     * @public
+     * @param listener - the catch-all listener
      */
@@ -461,4 +650,2 @@ offAnyOutgoing(listener?: (...args: any[]) => void): this;
      * e.g. to remove listeners.
-     *
-     * @public
      */
@@ -465,0 +652,0 @@ listenersAnyOutgoing(): ((...args: any[]) => void)[];

dist/socket.js

@@ -22,2 +22,33 @@ "use strict";
 function noop() { }
+/**
+ * This is the main object for interacting with a client.
+ *
+ * A Socket belongs to a given {@link Namespace} and uses an underlying {@link Client} to communicate.
+ *
+ * Within each {@link Namespace}, you can also define arbitrary channels (called "rooms") that the {@link Socket} can
+ * join and leave. That provides a convenient way to broadcast to a group of socket instances.
+ *
+ * @example
+ * io.on("connection", (socket) => {
+ *   console.log(`socket ${socket.id} connected`);
+ *
+ *   // send an event to the client
+ *   socket.emit("foo", "bar");
+ *
+ *   socket.on("foobar", () => {
+ *     // an event was received from the client
+ *   });
+ *
+ *   // join the room named "room1"
+ *   socket.join("room1");
+ *
+ *   // broadcast to everyone in the room named "room1"
+ *   io.to("room1").emit("hello");
+ *
+ *   // upon disconnection
+ *   socket.on("disconnect", (reason) => {
+ *     console.log(`socket ${socket.id} disconnected due to ${reason}`);
+ *   });
+ * });
+ */
 class Socket extends typed_events_1.StrictEventEmitter {
@@ -37,5 +68,19 @@ /**
         /**
-         * Additional information that can be attached to the Socket instance and which will be used in the fetchSockets method
+         * Additional information that can be attached to the Socket instance and which will be used in the
+         * {@link Server.fetchSockets()} method.
          */
         this.data = {};
+        /**
+         * Whether the socket is currently connected or not.
+         *
+         * @example
+         * io.use((socket, next) => {
+         *   console.log(socket.connected); // false
+         *   next();
+         * });
+         *
+         * io.on("connection", (socket) => {
+         *   console.log(socket.connected); // true
+         * });
+         */
         this.connected = false;
@@ -79,4 +124,16 @@ this.acks = new Map();
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.emit("hello", "world");
+     *
+     *   // all serializable datastructures are supported (no need to call JSON.stringify)
+     *   socket.emit("hello", 1, "2", { 3: ["4"], 5: Buffer.from([6]) });
+     *
+     *   // with an acknowledgement from the client
+     *   socket.emit("hello", "world", (val) => {
+     *     // ...
+     *   });
+     * });
+     *
      * @return Always returns `true`.
-     * @public
      */
@@ -127,5 +184,19 @@ emit(ev, ...args) {
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients in the “room-101” room, except this socket
+     *   socket.to("room-101").emit("foo", "bar");
+     *
+     *   // the code above is equivalent to:
+     *   io.to("room-101").except(socket.id).emit("foo", "bar");
+     *
+     *   // with an array of rooms (a client will be notified at most once)
+     *   socket.to(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     *   // with multiple chained calls
+     *   socket.to("room-101").to("room-102").emit("foo", "bar");
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -136,7 +207,12 @@ to(room) {
     /**
-     * Targets a room when broadcasting.
+     * Targets a room when broadcasting. Similar to `to()`, but might feel clearer in some cases:
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // disconnect all clients in the "room-101" room, except this socket
+     *   socket.in("room-101").disconnectSockets();
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -149,5 +225,17 @@ in(room) {
      *
-     * @param room
-     * @return self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
+     *   // and this socket
+     *   socket.except("room-101").emit("foo", "bar");
+     *
+     *   // with an array of rooms
+     *   socket.except(["room-101", "room-102"]).emit("foo", "bar");
+     *
+     *   // with multiple chained calls
+     *   socket.except("room-101").except("room-102").emit("foo", "bar");
+     * });
+     *
+     * @param room - a room, or an array of rooms
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -160,4 +248,15 @@ except(room) {
      *
+     * This method mimics the WebSocket.send() method.
+     *
+     * @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
+     *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.send("hello");
+     *
+     *   // this is equivalent to
+     *   socket.emit("message", "hello");
+     * });
+     *
      * @return self
-     * @public
      */
@@ -169,6 +268,5 @@ send(...args) {
     /**
-     * Sends a `message` event.
+     * Sends a `message` event. Alias of {@link send}.
      *
      * @return self
-     * @public
      */
@@ -194,5 +292,13 @@ write(...args) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // join a single room
+     *   socket.join("room1");
+     *
+     *   // join multiple rooms
+     *   socket.join(["room1", "room2"]);
+     * });
+     *
      * @param {String|Array} rooms - room or array of rooms
      * @return a Promise or nothing, depending on the adapter
-     * @public
      */
@@ -206,5 +312,13 @@ join(rooms) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // leave a single room
+     *   socket.leave("room1");
+     *
+     *   // leave multiple rooms
+     *   socket.leave("room1").leave("room2");
+     * });
+     *
      * @param {String} room
      * @return a Promise or nothing, depending on the adapter
-     * @public
      */
@@ -393,6 +507,13 @@ leave(room) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   // disconnect this socket (the connection might be kept alive for other namespaces)
+     *   socket.disconnect();
+     *
+     *   // disconnect this socket and close the underlying connection
+     *   socket.disconnect(true);
+     * })
+     *
      * @param {Boolean} close - if `true`, closes the underlying connection
-     * @return {Socket} self
-     *
-     * @public
+     * @return self
      */
@@ -414,5 +535,9 @@ disconnect(close = false) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.compress(false).emit("hello");
+     * });
+     *
      * @param {Boolean} compress - if `true`, compresses the sending data
      * @return {Socket} self
-     * @public
      */
@@ -428,4 +553,8 @@ compress(compress) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.volatile.emit("hello"); // the client may or may not receive it
+     * });
+     *
      * @return {Socket} self
-     * @public
      */
@@ -440,4 +569,9 @@ get volatile() {
      *
-     * @return {Socket} self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients, except this socket
+     *   socket.broadcast.emit("foo", "bar");
+     * });
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -450,4 +584,9 @@ get broadcast() {
      *
-     * @return {Socket} self
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   // the “foo” event will be broadcast to all connected clients on this node, except this socket
+     *   socket.local.emit("foo", "bar");
+     * });
+     *
+     * @return a new {@link BroadcastOperator} instance for chaining
      */
@@ -461,12 +600,12 @@ get local() {
      *
-     * ```
-     * socket.timeout(5000).emit("my-event", (err) => {
-     *   if (err) {
-     *     // the client did not acknowledge the event in the given delay
-     *   }
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.timeout(5000).emit("my-event", (err) => {
+     *     if (err) {
+     *       // the client did not acknowledge the event in the given delay
+     *     }
+     *   });
      * });
-     * ```
      *
      * @returns self
-     * @public
      */
@@ -502,5 +641,21 @@ timeout(timeout) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.use(([event, ...args], next) => {
+     *     if (isUnauthorized(event)) {
+     *       return next(new Error("unauthorized event"));
+     *     }
+     *     // do not forget to call next
+     *     next();
+     *   });
+     *
+     *   socket.on("error", (err) => {
+     *     if (err && err.message === "unauthorized event") {
+     *       socket.disconnect();
+     *     }
+     *   });
+     * });
+     *
      * @param {Function} fn - middleware function (event, next)
      * @return {Socket} self
-     * @public
      */
@@ -544,4 +699,2 @@ use(fn) {
      * A reference to the request that originated the underlying Engine.IO Socket.
-     *
-     * @public
      */
@@ -554,3 +707,10 @@ get request() {
      *
-     * @public
+     * @example
+     * io.on("connection", (socket) => {
+     *   console.log(socket.conn.transport.name); // prints "polling" or "websocket"
+     *
+     *   socket.conn.once("upgrade", () => {
+     *     console.log(socket.conn.transport.name); // prints "websocket"
+     *   });
+     * });
      */
@@ -561,3 +721,12 @@ get conn() {
     /**
-     * @public
+     * Returns the rooms the socket is currently in.
+     *
+     * @example
+     * io.on("connection", (socket) => {
+     *   console.log(socket.rooms); // Set { <socket.id> }
+     *
+     *   socket.join("room1");
+     *
+     *   console.log(socket.rooms); // Set { <socket.id>, "room1" }
+     * });
      */
@@ -571,4 +740,10 @@ get rooms() {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.onAny((event, ...args) => {
+     *     console.log(`got event ${event}`);
+     *   });
+     * });
+     *
      * @param listener
-     * @public
      */
@@ -585,3 +760,2 @@ onAny(listener) {
      * @param listener
-     * @public
      */
@@ -596,4 +770,18 @@ prependAny(listener) {
      *
+     * @example
+     * io.on("connection", (socket) => {
+     *   const catchAllListener = (event, ...args) => {
+     *     console.log(`got event ${event}`);
+     *   }
+     *
+     *   socket.onAny(catchAllListener);
+     *
+     *   // remove a specific listener
+     *   socket.offAny(catchAllListener);
+     *
+     *   // or remove all listeners
+     *   socket.offAny();
+     * });
+     *
      * @param listener
-     * @public
      */
@@ -621,4 +809,2 @@ offAny(listener) {
      * e.g. to remove listeners.
-     *
-     * @public
      */
@@ -629,16 +815,15 @@ listenersAny() {
     /**
-     * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
-     * callback.
+     * Adds a listener that will be fired when any event is sent. The event name is passed as the first argument to
+     * the callback.
      *
-     * @param listener
+     * Note: acknowledgements sent to the client are not included.
      *
-     * <pre><code>
-     *
-     * socket.onAnyOutgoing((event, ...args) => {
-     *   console.log(event);
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.onAnyOutgoing((event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   });
      * });
      *
-     * </pre></code>
-     *
-     * @public
+     * @param listener
      */
@@ -654,13 +839,10 @@ onAnyOutgoing(listener) {
      *
-     * @param listener
-     *
-     * <pre><code>
-     *
-     * socket.prependAnyOutgoing((event, ...args) => {
-     *   console.log(event);
+     * @example
+     * io.on("connection", (socket) => {
+     *   socket.prependAnyOutgoing((event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   });
      * });
      *
-     * </pre></code>
-     *
-     * @public
+     * @param listener
      */
@@ -673,20 +855,20 @@ prependAnyOutgoing(listener) {
     /**
-     * Removes the listener that will be fired when any event is emitted.
+     * Removes the listener that will be fired when any event is sent.
      *
-     * @param listener
+     * @example
+     * io.on("connection", (socket) => {
+     *   const catchAllListener = (event, ...args) => {
+     *     console.log(`sent event ${event}`);
+     *   }
      *
-     * <pre><code>
+     *   socket.onAnyOutgoing(catchAllListener);
      *
-     * const handler = (event, ...args) => {
-     *   console.log(event);
-     * }
+     *   // remove a specific listener
+     *   socket.offAnyOutgoing(catchAllListener);
      *
-     * socket.onAnyOutgoing(handler);
+     *   // or remove all listeners
+     *   socket.offAnyOutgoing();
+     * });
      *
-     * // then later
-     * socket.offAnyOutgoing(handler);
-     *
-     * </pre></code>
-     *
-     * @public
+     * @param listener - the catch-all listener
      */
@@ -714,4 +896,2 @@ offAnyOutgoing(listener) {
      * e.g. to remove listeners.
-     *
-     * @public
      */
@@ -718,0 +898,0 @@ listenersAnyOutgoing() {

package.json

 {
   "name": "socket.io",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "description": "node.js realtime framework server",
@@ -63,3 +63,3 @@ "keywords": [
     "rimraf": "^3.0.2",
-    "socket.io-client": "4.5.2",
+    "socket.io-client": "4.5.3",
     "socket.io-client-v2": "npm:socket.io-client@^2.4.0",
@@ -66,0 +66,0 @@ "superagent": "^8.0.0",

New alerts

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This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

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This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

1154409

increased by6.71%

Lines of code

9378

increased by16.53%

No dependency changes