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@harnessio/ff-javascript-client-sdk - npm Package Compare versions

Comparing version 1.25.0 to 1.26.0-rc.0

9

dist/poller.d.ts
import type { Options } from './types';
import { FetchFlagsResult } from './types';
import type { Emitter } from 'mitt';
export default class Poller {

@@ -7,6 +8,9 @@ private fetchFlagsFn;

private eventBus;
private logDebug;
private logError;
private timeoutId;
private isRunning;
private maxAttempts;
constructor(fetchFlagsFn: () => Promise<FetchFlagsResult>, configurations: Options, eventBus: any);
constructor(fetchFlagsFn: () => Promise<FetchFlagsResult>, configurations: Options, eventBus: Emitter, // Used to emit the updates retrieved in polling intervals
logDebug: (...data: any[]) => void, logError: (...data: any[]) => void);
start(): void;

@@ -17,3 +21,4 @@ private poll;

isPolling(): boolean;
private logDebug;
private logDebugMessage;
private logErrorMessage;
}

2

dist/sdk.cjs.js

@@ -1,1 +0,1 @@

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2

dist/sdk.client-iife.js

@@ -1,1 +0,1 @@

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dist/sdk.client.js

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k=()=>h(void 0,null,function*(){try{let t=yield x(`${m.baseUrl}/client/env/${o}/target/${e.identifier}/evaluations?cluster=${s}`,{headers:A});if(t.ok){let n=yield t.json();return n.forEach(D),g.emit("flags loaded",n),{type:"success",data:n}}else return O("Features fetch operation error: ",t),g.emit("fetch flags error",t),g.emit("error",t),{type:"error",error:t}}catch(t){return O("Features fetch operation error: ",t),g.emit("fetch flags error",t),g.emit("error",t),{type:"error",error:t}}}),ee=t=>h(void 0,null,function*(){try{let n=yield x(`${m.baseUrl}/client/env/${o}/target/${e.identifier}/evaluations/${t}?cluster=${s}`,{headers:A});if(n.ok){let c=yield n.json();D(c)}else O("Feature fetch operation error: ",n),g.emit("fetch flag error",n),g.emit("error",n)}catch(n){O("Feature fetch operation error: ",n),g.emit("fetch flag error",n),g.emit("error",n)}}),D=t=>{L();let n=H(t);n!==T[t.flag]&&(p("Flag variation has changed for 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c=n,f=t,E=w.find(b=>b.featureIdentifier===f&&b.featureValue===c);E?(G(E),E.variationIdentifier=((l=I[f])==null?void 0:l.identifier)||""):w.push({featureIdentifier:f,featureValue:c,count:1,variationIdentifier:I[f].identifier||"",lastAccessed:Date.now()})},te=()=>{r=!0,m.streamEnabled&&(p("Closing event stream"),typeof(u==null?void 0:u.close)=="function"&&u.close(),g.all.clear()),m.pollingEnabled&&R.isPolling()&&(p("Closing Poller"),R.stop()),T=Z(),I={},clearTimeout(d)},ie=(t,n=!0)=>{t.length&&q(()=>{let c=!!Object.keys(I).length;if(t.forEach(D),!c){L();let f=C({},T);v(),g.emit("ready",f)}},n)};return{on:K,off:ye,close:te,setEvaluations:ie,registerAPIRequestMiddleware:t=>{x=J(t)},refreshEvaluations:()=>{Q&&!r&&Date.now()-X>=6e4&&(k(),X=Date.now())},variation:(t,n,c=!1)=>ge(t,n,T,Re,c)}};export{N as Event,Et as initialize};

2

dist/sdk.esm.js

@@ -1,1 +0,1 @@

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re=3e4,_=class{constructor(e,a,r,s,l,g,R){this.closed=!1;this.connectionOpened=!1;this.disconnectEventEmitted=!1;this.eventBus=e,this.configurations=a,this.url=r,this.apiKey=s,this.standardHeaders=l,this.eventCallback=R,this.fallbackPoller=g}start(){let e=u=>{u.toString().split(/\r?\n/).forEach(a)},a=u=>{if(u.startsWith("data:")){let C=JSON.parse(u.substring(5));this.logDebug("Received event from stream: ",C),this.eventCallback(C)}},r=()=>{this.logDebug("Stream connected"),this.eventBus.emit("connected")},s=()=>{clearInterval(this.readTimeoutCheckerId);let u=V(1e3,1e4);this.logDebug("Stream disconnected, will reconnect in "+u+"ms"),this.disconnectEventEmitted||(this.eventBus.emit("disconnected"),this.disconnectEventEmitted=!0),setTimeout(()=>this.start(),u)},l=u=>{u&&I("Stream has issue",u),this.fallBackToPolling(),this.eventBus.emit("stream 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i=Date.now();i-t.lastAccessed>Fe&&(t.count++,t.lastAccessed=i)}},ue=()=>h(void 0,null,function*(){if(v.cache){b("initializing cache");try{let t=!0,i=yield se(e.identifier+n,typeof v.cache=="boolean"?{}:v.cache),c=yield i.loadFromCache();c!=null&&c.length&&K(()=>{b("loading from cache",c),ee(c,!1),d.emit("cache loaded",c)}),B("flags loaded",f=>h(void 0,null,function*(){yield i.saveToCache(f),t=!1})),B("changed",f=>h(void 0,null,function*(){t||(f.deleted?yield i.removeCachedEvaluation(f.flag):yield i.updateCachedEvaluation(f))}))}catch(t){I("Cache error: ",t),d.emit("cache error",t),d.emit("error",t)}}}),de=(t,i)=>h(void 0,null,function*(){return(yield(yield xe(`${i.baseUrl}/client/auth`,{method:"POST",headers:{"Content-Type":"application/json","Harness-SDK-Info":le},body:JSON.stringify({apiKey:t,target:$(O({},e),{identifier:String(e.identifier)})})})).json()).authToken}),H=0,G=()=>{if(T.length){b("Sending metrics...",{metrics:T,evaluations:S});let t={metricsData:T.map(i=>({timestamp:Date.now(),count:i.count,metricsType:"FFMETRICS",attributes:[{key:"featureIdentifier",value:i.featureIdentifier},{key:"featureName",value:i.featureIdentifier},{key:"variationIdentifier",value:i.variationIdentifier},{key:"target",value:e.identifier},{key:"SDK_NAME",value:"JavaScript"},{key:"SDK_LANGUAGE",value:"JavaScript"},{key:"SDK_TYPE",value:"client"},{key:"SDK_VERSION",value:ce}]}))};x(`${v.eventUrl}/metrics/${s}?cluster=${l}`,{method:"POST",headers:O({"Content-Type":"application/json"},A),body:JSON.stringify(t)}).then(()=>{T=[],H=0}).catch(i=>{H++&&(T=[],H=0),b(i),d.emit("metrics error",i)}).finally(()=>{u=window.setTimeout(G,v.eventsSyncInterval)})}else u=window.setTimeout(G,v.eventsSyncInterval)},S={},fe=t=>{b("Sending event for",t.flag),W?d.emit("changed",new Proxy(t,{get(i,c){var f;if(C&&i.hasOwnProperty(c)&&c==="value"){let p=i.flag,o=t.value,E=T.find(P=>P.featureIdentifier===p&&P.featureValue===o);E?(M(E),E.variationIdentifier=((f=S[p])==null?void 0:f.identifier)||""):T.push({featureIdentifier:p,featureValue:String(o),variationIdentifier:S[p].identifier||"",count:1,lastAccessed:Date.now()}),b("Metrics event: Flag",c,"has been read with value via stream update",o)}return c==="value"?J(t):t[c]}})):d.emit("changed",{deleted:t.deleted,flag:t.flag,value:J(t)})},X=function(){return W?new Proxy({},{get(t,i){var f,p,o;let c=t[i];if(C&&t.hasOwnProperty(i)){let E=t[i],P=T.find(te=>te.featureIdentifier===i&&E===te.featureValue);P?(P.variationIdentifier=((f=S[i])==null?void 0:f.identifier)||"",M(P)):T.push({featureIdentifier:i,featureValue:E,variationIdentifier:((p=S[i])==null?void 0:p.identifier)||"",count:1,lastAccessed:Date.now()}),b("Metrics event: Flag:",i,"has been read with value:",E,"variationIdentifier:",(o=S[i])==null?void 0:o.identifier)}return c}}):{}},w=X();ue().then(()=>de(n,v).then(t=>h(void 0,null,function*(){if(r)return;y=t;let i=De(t);if(A={Authorization:`Bearer ${y}`,"Harness-AccountID":i.accountID,"Harness-EnvironmentID":i.environmentIdentifier,"Harness-SDK-Info":le},globalThis.btoa){let p=globalThis.btoa(JSON.stringify(e));p.length<262144&&(A["Harness-Target"]=p)}b("Authenticated",i),u=window.setTimeout(G,v.eventsSyncInterval),s=i.environment,l=i.clusterIdentifier;let c=!!Object.keys(S).length;if((yield N()).type==="success"&&b("Fetch all flags ok",w),!r){if(v.streamEnabled?(b("Streaming mode enabled"),ge()):v.pollingEnabled?(b("Polling mode enabled"),he()):b("Streaming and polling mode disabled"),!c){L();let p=O({},w);m(),d.emit("ready",p)}z=!0}})).catch(t=>{I("Authentication error: ",t),d.emit("auth error",t),d.emit("error",t)}));let N=()=>h(void 0,null,function*(){try{let t=yield x(`${v.baseUrl}/client/env/${s}/target/${e.identifier}/evaluations?cluster=${l}`,{headers:A});if(t.ok){let i=yield t.json();return i.forEach(D),d.emit("flags loaded",i),{type:"success",data:i}}else return I("Features fetch operation error: ",t),d.emit("fetch flags error",t),d.emit("error",t),{type:"error",error:t}}catch(t){return I("Features fetch operation error: ",t),d.emit("fetch flags error",t),d.emit("error",t),{type:"error",error:t}}}),Q=t=>h(void 0,null,function*(){try{let i=yield x(`${v.baseUrl}/client/env/${s}/target/${e.identifier}/evaluations/${t}?cluster=${l}`,{headers:A});if(i.ok){let c=yield i.json();D(c)}else I("Feature fetch operation error: ",i),d.emit("fetch flag error",i),d.emit("error",i)}catch(i){I("Feature fetch operation error: ",i),d.emit("fetch flag error",i),d.emit("error",i)}}),D=t=>{L();let i=J(t);i!==w[t.flag]&&(b("Flag variation has changed for ",t.identifier),w[t.flag]=i,S[t.flag]=$(O({},t),{value:i}),fe(t)),m()};R=new F(N,v,d);let ge=()=>{let t=o=>{switch(o.event){case"create":c(o.evaluations)?o.evaluations.forEach(E=>{D(E)}):setTimeout(()=>Q(o.identifier),1e3);break;case"patch":c(o.evaluations)?o.evaluations.forEach(E=>{D(E)}):Q(o.identifier);break;case"delete":delete w[o.identifier],d.emit("changed",{flag:o.identifier,value:void 0,deleted:!0}),b("Evaluation deleted",{message:o,storage:w});break}},i=o=>!(!o||!o.flag||!o.identifier||!o.kind||!o.value),c=o=>!(!o||o.length==0||!o.every(E=>i(E))),f=o=>{o.event==="patch"&&(c(o.evaluations)?o.evaluations.forEach(E=>{D(E)}):N())},p=`${v.baseUrl}/stream?cluster=${l}`;g=new _(d,v,p,n,A,R,o=>{o.domain==="flag"?t(o):o.domain==="target-segment"&&f(o)}),g.start()},he=()=>{R.start()},B=(t,i)=>d.on(t,i),me=(t,i)=>{t?d.off(t,i):Z()},ve=(t,i)=>{var o;if(!C||W||i===void 0)return;let c=i,f=t,p=T.find(E=>E.featureIdentifier===f&&E.featureValue===c);p?(M(p),p.variationIdentifier=((o=S[f])==null?void 0:o.identifier)||""):T.push({featureIdentifier:f,featureValue:c,count:1,variationIdentifier:S[f].identifier||"",lastAccessed:Date.now()})},Z=()=>{r=!0,v.streamEnabled&&(b("Closing event stream"),typeof(g==null?void 0:g.close)=="function"&&g.close(),d.all.clear()),v.pollingEnabled&&R.isPolling()&&(b("Closing Poller"),R.stop()),w=X(),S={},clearTimeout(u)},ee=(t,i=!0)=>{t.length&&K(()=>{let c=!!Object.keys(S).length;if(t.forEach(D),!c){L();let f=O({},w);m(),d.emit("ready",f)}},i)};return{on:B,off:me,close:Z,setEvaluations:ee,registerAPIRequestMiddleware:t=>{x=j(t)},refreshEvaluations:()=>{z&&!r&&Date.now()-Y>=6e4&&(N(),Y=Date.now())},variation:(t,i,c=!1)=>oe(t,i,w,ve,c)}};export{k as Event,dt as initialize};
var pe=Object.defineProperty,Ee=Object.defineProperties;var Re=Object.getOwnPropertyDescriptors;var ie=Object.getOwnPropertySymbols;var be=Object.prototype.hasOwnProperty,ye=Object.prototype.propertyIsEnumerable;var ne=(n,e,a)=>e in n?pe(n,e,{enumerable:!0,configurable:!0,writable:!0,value:a}):n[e]=a,O=(n,e)=>{for(var a in e||(e={}))be.call(e,a)&&ne(n,a,e[a]);if(ie)for(var a of ie(e))ye.call(e,a)&&ne(n,a,e[a]);return n},K=(n,e)=>Ee(n,Re(e));var f=(n,e,a)=>new Promise((r,s)=>{var l=b=>{try{y(a.next(b))}catch(g){s(g)}},h=b=>{try{y(a.throw(b))}catch(g){s(g)}},y=b=>b.done?r(b.value):Promise.resolve(b.value).then(l,h);y((a=a.apply(n,e)).next())});import Ae from"jwt-decode";import Pe from"mitt";var N=(v=>(v.READY="ready",v.CONNECTED="connected",v.DISCONNECTED="disconnected",v.STOPPED="stopped",v.POLLING="polling",v.POLLING_STOPPED="polling stopped",v.FLAGS_LOADED="flags loaded",v.CACHE_LOADED="cache loaded",v.CHANGED="changed",v.ERROR="error",v.ERROR_CACHE="cache error",v.ERROR_METRICS="metrics error",v.ERROR_AUTH="auth error",v.ERROR_FETCH_FLAGS="fetch flags error",v.ERROR_FETCH_FLAG="fetch flag error",v.ERROR_STREAM="stream error",v))(N||{});var Ie={debug:!1,baseUrl:"https://config.ff.harness.io/api/1.0",eventUrl:"https://events.ff.harness.io/api/1.0",eventsSyncInterval:6e4,pollingInterval:6e4,streamEnabled:!0,cache:!1},ae=n=>{let e=O(O({},Ie),n);return e.pollingEnabled===void 0&&(e.pollingEnabled=e.streamEnabled),e.eventsSyncInterval<6e4&&(e.eventsSyncInterval=6e4),e.pollingInterval<6e4&&(e.pollingInterval=6e4),(!e.logger||!e.logger.debug||!e.logger.error||!e.logger.info||!e.logger.warn)&&(e.logger=console),e},j=(n,e=!0)=>{e?setTimeout(n,0):n()},k=(n,e)=>Math.round(Math.random()*(e-n)+n);function U(n){return function(...a){let[r,s]=n(a);return fetch(r,s)}}var re=3e4,V=class{constructor(e,a,r,s,l,h,y,b,g){this.eventBus=e;this.configurations=a;this.url=r;this.apiKey=s;this.standardHeaders=l;this.fallbackPoller=h;this.logDebug=y;this.logError=b;this.eventCallback=g;this.closed=!1;this.connectionOpened=!1;this.disconnectEventEmitted=!1}start(){let e=g=>{g.toString().split(/\r?\n/).forEach(a)},a=g=>{if(g.startsWith("data:")){let S=JSON.parse(g.substring(5));this.logDebugMessage("Received event from stream: ",S),this.eventCallback(S)}},r=()=>{this.logDebugMessage("Stream connected"),this.eventBus.emit("connected")},s=()=>{clearInterval(this.readTimeoutCheckerId);let g=k(1e3,1e4);this.logDebugMessage("Stream disconnected, will reconnect in "+g+"ms"),this.disconnectEventEmitted||(this.eventBus.emit("disconnected"),this.disconnectEventEmitted=!0),setTimeout(()=>this.start(),g)},l=g=>{g&&this.logErrorMessage("Stream has issue",g),this.fallBackToPolling(),this.eventBus.emit("stream error",g),this.eventBus.emit("error",g),s()},h=O({"Cache-Control":"no-cache",Accept:"text/event-stream","API-Key":this.apiKey},this.standardHeaders);this.logDebugMessage("SSE HTTP start request",this.url),this.xhr=new XMLHttpRequest,this.xhr.open("GET",this.url);for(let[g,S]of Object.entries(h))this.xhr.setRequestHeader(g,S);this.xhr.timeout=24*60*60*1e3,this.xhr.onerror=()=>{this.connectionOpened=!1,l("XMLHttpRequest error on SSE stream")},this.xhr.onabort=()=>{this.connectionOpened=!1,this.logDebugMessage("SSE aborted"),this.closed||l(null)},this.xhr.ontimeout=()=>{this.connectionOpened=!1,l("SSE timeout")},this.xhr.onload=()=>{if(this.xhr.status>=400&&this.xhr.status<=599){l(`HTTP code ${this.xhr.status}`);return}this.connectionOpened||(r(),this.connectionOpened=!0,this.disconnectEventEmitted=!1)};let y=0,b=Date.now();this.xhr.onprogress=()=>{this.connectionOpened||(r(),this.connectionOpened=!0,this.disconnectEventEmitted=!1),this.stopFallBackPolling(),b=Date.now();let g=this.xhr.responseText.slice(y);y+=g.length,this.logDebugMessage("SSE GOT: "+g),e(g)},this.readTimeoutCheckerId=setInterval(()=>{b<Date.now()-re&&(this.logErrorMessage("SSE read timeout"),this.xhr.abort())},re),this.xhr.send()}close(){this.connectionOpened=!1,this.closed=!0,this.xhr&&this.xhr.abort(),clearInterval(this.readTimeoutCheckerId),this.eventBus.emit("stopped"),this.stopFallBackPolling()}fallBackToPolling(){!this.fallbackPoller.isPolling()&&this.configurations.pollingEnabled&&(this.logDebugMessage("Falling back to polling mode while stream recovers"),this.fallbackPoller.start())}stopFallBackPolling(){this.fallbackPoller.isPolling()&&(this.logDebugMessage("Stopping fallback polling mode"),this.fallbackPoller.stop())}logDebugMessage(e,...a){this.configurations.debug&&this.logDebug(`Streaming: ${e}`,...a)}logErrorMessage(e,...a){this.logError(`Streaming: ${e}`,...a)}};function oe(n,e,a,r,s){let l=n in a,h=l?a[n]:e;return l&&r(n,h),s?{value:h,isDefaultValue:!l}:h}var F=class{constructor(e,a,r,s,l){this.fetchFlagsFn=e;this.configurations=a;this.eventBus=r;this.logDebug=s;this.logError=l;this.maxAttempts=5}start(){if(this.isPolling()){this.logDebugMessage("Already polling.");return}this.isRunning=!0,this.eventBus.emit("polling"),this.logDebugMessage(`Starting poller, first poll will be in ${this.configurations.pollingInterval}ms`),this.timeoutId=setTimeout(()=>this.poll(),this.configurations.pollingInterval)}poll(){this.attemptFetch().finally(()=>{this.timeoutId=setTimeout(()=>this.poll(),this.configurations.pollingInterval)})}attemptFetch(){return f(this,null,function*(){for(let e=1;e<=this.maxAttempts;e++){let a=yield this.fetchFlagsFn();if(a.type==="success"){this.logDebugMessage(`Successfully polled for flag updates, next poll in ${this.configurations.pollingInterval}ms. `);return}if(this.logErrorMessage("Error when polling for flag updates",a.error),e>=this.maxAttempts){this.logDebugMessage(`Maximum attempts reached for polling for flags. Next poll in ${this.configurations.pollingInterval}ms.`);return}this.logDebugMessage(`Polling for flags attempt #${e} failed. Remaining attempts: ${this.maxAttempts-e}`,a.error);let r=k(1e3,1e4);yield new Promise(s=>setTimeout(s,r))}})}stop(){this.timeoutId&&(clearTimeout(this.timeoutId),this.timeoutId=void 0,this.isRunning=!1,this.eventBus.emit("polling stopped"),this.logDebugMessage("Polling stopped"))}isPolling(){return this.isRunning}logDebugMessage(e,...a){this.configurations.debug&&this.logDebug(`Poller: ${e}`,...a)}logErrorMessage(e,...a){this.logError(`Poller: ${e}`,...a)}};function se(a){return f(this,arguments,function*(n,e={}){let r=yield Te(n),s=we(e);return{loadFromCache:()=>q(r,s,e),saveToCache:l=>W(r,s,l),updateCachedEvaluation:l=>Ce(r,s,l),removeCachedEvaluation:l=>Oe(r,s,l)}})}function q(r,s){return f(this,arguments,function*(n,e,a={}){let l=parseInt(yield e.getItem(n+".ts"));if(a!=null&&a.ttl&&!isNaN(l)&&l+a.ttl<Date.now())return yield Se(n,e),[];let h=yield e.getItem(n);if(h)try{return JSON.parse(h)}catch(y){}return[]})}function Se(n,e){return f(this,null,function*(){yield e.removeItem(n),yield e.removeItem(n+".ts")})}function W(n,e,a){return f(this,null,function*(){yield e.setItem(n,JSON.stringify(a)),yield e.setItem(n+".ts",Date.now().toString())})}function Ce(n,e,a){return f(this,null,function*(){let r=yield q(n,e),s=r.find(({flag:l})=>l===a.flag);s?Object.assign(s,a):r.push(a),yield W(n,e,r)})}function Oe(n,e,a){return f(this,null,function*(){let r=yield q(n,e),s=r.findIndex(({flag:l})=>l===a);s>-1&&(r.splice(s,1),yield W(n,e,r))})}function Te(n){return f(this,null,function*(){var a,r;let e=n;if(globalThis!=null&&globalThis.TextEncoder&&((r=(a=globalThis==null?void 0:globalThis.crypto)==null?void 0:a.subtle)!=null&&r.digest)){let l=new TextEncoder().encode(n),h=yield crypto.subtle.digest("SHA-256",l);e=Array.from(new Uint8Array(h)).map(b=>b.toString(16).padStart(2,"0")).join("")}else globalThis.btoa&&(e=btoa(n));return"HARNESS_FF_CACHE_"+e})}function we(n){let e;return!n.storage||typeof n.storage!="object"||!("getItem"in n.storage)||!("setItem"in n.storage)||!("removeItem"in n.storage)?globalThis.localStorage?e=globalThis.localStorage:globalThis.sessionStorage?e=globalThis.sessionStorage:e=De:e=n.storage,{getItem(r){return f(this,null,function*(){let s=e.getItem(r);return s instanceof Promise?yield s:s})},setItem(r,s){return f(this,null,function*(){let l=e.setItem(r,s);l instanceof Promise&&(yield l)})},removeItem(r){return f(this,null,function*(){let s=e.removeItem(r);s instanceof Promise&&(yield s)})}}}var De={getItem:()=>null,setItem:()=>{},removeItem:()=>{}};var ce="1.25.0",le=`Javascript ${ce} Client`,Fe=500,Me=globalThis.fetch,J=!!globalThis.Proxy,dt=(n,e,a)=>{let r=!1,s,l,h,y,b,g,S=!0,D={},M=U(t=>t),Y=0,z=!1,_=()=>{S=!1},v=()=>{S=!0},C=[],d=Pe(),m=ae(a),p=(t,...i)=>{m.debug&&m.logger.debug(`[FF-SDK] ${t}`,...i)},T=(t,...i)=>{m.logger.error(`[FF-SDK] ${t}`,...i)},L=t=>{let{value:i}=t;try{switch(t.kind.toLowerCase()){case"int":case"number":i=Number(i);break;case"boolean":i=i.toString().toLowerCase()==="true";break;case"json":i=JSON.parse(i);break}}catch(c){T(c)}return i},H=t=>{if(S){let i=Date.now();i-t.lastAccessed>Fe&&(t.count++,t.lastAccessed=i)}},ge=()=>f(void 0,null,function*(){if(m.cache){p("initializing cache");try{let t=!0,i=yield se(e.identifier+n,typeof m.cache=="boolean"?{}:m.cache),c=yield i.loadFromCache();c!=null&&c.length&&j(()=>{p("loading from cache",c),ee(c,!1),d.emit("cache loaded",c)}),B("flags loaded",u=>f(void 0,null,function*(){yield i.saveToCache(u),t=!1})),B("changed",u=>f(void 0,null,function*(){t||(u.deleted?yield i.removeCachedEvaluation(u.flag):yield i.updateCachedEvaluation(u))}))}catch(t){T("Cache error: ",t),d.emit("cache error",t),d.emit("error",t)}}}),de=(t,i)=>f(void 0,null,function*(){return(yield(yield Me(`${i.baseUrl}/client/auth`,{method:"POST",headers:{"Content-Type":"application/json","Harness-SDK-Info":le},body:JSON.stringify({apiKey:t,target:K(O({},e),{identifier:String(e.identifier)})})})).json()).authToken}),G=0,$=()=>{if(C.length){p("Sending metrics...",{metrics:C,evaluations:I});let t={metricsData:C.map(i=>({timestamp:Date.now(),count:i.count,metricsType:"FFMETRICS",attributes:[{key:"featureIdentifier",value:i.featureIdentifier},{key:"featureName",value:i.featureIdentifier},{key:"variationIdentifier",value:i.variationIdentifier},{key:"target",value:e.identifier},{key:"SDK_NAME",value:"JavaScript"},{key:"SDK_LANGUAGE",value:"JavaScript"},{key:"SDK_TYPE",value:"client"},{key:"SDK_VERSION",value:ce}]}))};M(`${m.eventUrl}/metrics/${s}?cluster=${l}`,{method:"POST",headers:O({"Content-Type":"application/json"},D),body:JSON.stringify(t)}).then(()=>{C=[],G=0}).catch(i=>{G++&&(C=[],G=0),p(i),d.emit("metrics error",i)}).finally(()=>{g=window.setTimeout($,m.eventsSyncInterval)})}else g=window.setTimeout($,m.eventsSyncInterval)},I={},ue=t=>{p("Sending event for",t.flag),J?d.emit("changed",new Proxy(t,{get(i,c){var u;if(S&&i.hasOwnProperty(c)&&c==="value"){let E=i.flag,o=t.value,R=C.find(P=>P.featureIdentifier===E&&P.featureValue===o);R?(H(R),R.variationIdentifier=((u=I[E])==null?void 0:u.identifier)||""):C.push({featureIdentifier:E,featureValue:String(o),variationIdentifier:I[E].identifier||"",count:1,lastAccessed:Date.now()}),p("Metrics event: Flag",c,"has been read with value via stream update",o)}return c==="value"?L(t):t[c]}})):d.emit("changed",{deleted:t.deleted,flag:t.flag,value:L(t)})},X=function(){return J?new Proxy({},{get(t,i){var u,E,o;let c=t[i];if(S&&t.hasOwnProperty(i)){let R=t[i],P=C.find(te=>te.featureIdentifier===i&&R===te.featureValue);P?(P.variationIdentifier=((u=I[i])==null?void 0:u.identifier)||"",H(P)):C.push({featureIdentifier:i,featureValue:R,variationIdentifier:((E=I[i])==null?void 0:E.identifier)||"",count:1,lastAccessed:Date.now()}),p("Metrics event: Flag:",i,"has been read with value:",R,"variationIdentifier:",(o=I[i])==null?void 0:o.identifier)}return c}}):{}},w=X();ge().then(()=>de(n,m).then(t=>f(void 0,null,function*(){if(r)return;b=t;let i=Ae(t);if(D={Authorization:`Bearer ${b}`,"Harness-AccountID":i.accountID,"Harness-EnvironmentID":i.environmentIdentifier,"Harness-SDK-Info":le},globalThis.btoa){let E=globalThis.btoa(JSON.stringify(e));E.length<262144&&(D["Harness-Target"]=E)}p("Authenticated",i),g=window.setTimeout($,m.eventsSyncInterval),s=i.environment,l=i.clusterIdentifier;let c=!!Object.keys(I).length;if((yield x()).type==="success"&&p("Fetch all flags ok",w),!r){if(m.streamEnabled?(p("Streaming mode enabled"),fe()):m.pollingEnabled?(p("Polling mode enabled"),he()):p("Streaming and polling mode disabled"),!c){_();let E=O({},w);v(),d.emit("ready",E)}z=!0}})).catch(t=>{T("Authentication error: ",t),d.emit("auth error",t),d.emit("error",t)}));let x=()=>f(void 0,null,function*(){try{let t=yield M(`${m.baseUrl}/client/env/${s}/target/${e.identifier}/evaluations?cluster=${l}`,{headers:D});if(t.ok){let i=yield t.json();return i.forEach(A),d.emit("flags loaded",i),{type:"success",data:i}}else return T("Features fetch operation error: ",t),d.emit("fetch flags error",t),d.emit("error",t),{type:"error",error:t}}catch(t){return T("Features fetch operation error: ",t),d.emit("fetch flags error",t),d.emit("error",t),{type:"error",error:t}}}),Q=t=>f(void 0,null,function*(){try{let i=yield M(`${m.baseUrl}/client/env/${s}/target/${e.identifier}/evaluations/${t}?cluster=${l}`,{headers:D});if(i.ok){let c=yield i.json();A(c)}else T("Feature fetch operation error: ",i),d.emit("fetch flag error",i),d.emit("error",i)}catch(i){T("Feature fetch operation error: ",i),d.emit("fetch flag error",i),d.emit("error",i)}}),A=t=>{_();let i=L(t);i!==w[t.flag]&&(p("Flag variation has changed for ",t.identifier),w[t.flag]=i,I[t.flag]=K(O({},t),{value:i}),ue(t)),v()};y=new F(x,m,d,p,T);let fe=()=>{let t=o=>{switch(o.event){case"create":c(o.evaluations)?o.evaluations.forEach(R=>{A(R)}):setTimeout(()=>Q(o.identifier),1e3);break;case"patch":c(o.evaluations)?o.evaluations.forEach(R=>{A(R)}):Q(o.identifier);break;case"delete":delete w[o.identifier],d.emit("changed",{flag:o.identifier,value:void 0,deleted:!0}),p("Evaluation deleted",{message:o,storage:w});break}},i=o=>!(!o||!o.flag||!o.identifier||!o.kind||!o.value),c=o=>!(!o||o.length==0||!o.every(R=>i(R))),u=o=>{o.event==="patch"&&(c(o.evaluations)?o.evaluations.forEach(R=>{A(R)}):x())},E=`${m.baseUrl}/stream?cluster=${l}`;h=new V(d,m,E,n,D,y,p,T,o=>{o.domain==="flag"?t(o):o.domain==="target-segment"&&u(o)}),h.start()},he=()=>{y.start()},B=(t,i)=>d.on(t,i),ve=(t,i)=>{t?d.off(t,i):Z()},me=(t,i)=>{var o;if(!S||J||i===void 0)return;let c=i,u=t,E=C.find(R=>R.featureIdentifier===u&&R.featureValue===c);E?(H(E),E.variationIdentifier=((o=I[u])==null?void 0:o.identifier)||""):C.push({featureIdentifier:u,featureValue:c,count:1,variationIdentifier:I[u].identifier||"",lastAccessed:Date.now()})},Z=()=>{r=!0,m.streamEnabled&&(p("Closing event stream"),typeof(h==null?void 0:h.close)=="function"&&h.close(),d.all.clear()),m.pollingEnabled&&y.isPolling()&&(p("Closing Poller"),y.stop()),w=X(),I={},clearTimeout(g)},ee=(t,i=!0)=>{t.length&&j(()=>{let c=!!Object.keys(I).length;if(t.forEach(A),!c){_();let u=O({},w);v(),d.emit("ready",u)}},i)};return{on:B,off:ve,close:Z,setEvaluations:ee,registerAPIRequestMiddleware:t=>{M=U(t)},refreshEvaluations:()=>{z&&!r&&Date.now()-Y>=6e4&&(x(),Y=Date.now())},variation:(t,i,c=!1)=>oe(t,i,w,me,c)}};export{N as Event,dt as initialize};

24

dist/stream.d.ts

@@ -0,15 +1,20 @@

import { type Options, StreamEvent } from './types';
import type Poller from './poller';
import type { Emitter } from 'mitt';
export declare class Streamer {
private readonly eventBus;
private readonly configurations;
private readonly url;
private readonly standardHeaders;
private readonly apiKey;
private readonly eventCallback;
private eventBus;
private configurations;
private url;
private apiKey;
private standardHeaders;
private fallbackPoller;
private logDebug;
private logError;
private eventCallback;
private xhr;
private closed;
private readTimeoutCheckerId;
private fallbackPoller;
private connectionOpened;
private disconnectEventEmitted;
constructor(eventBus: any, configurations: any, url: any, apiKey: any, standardHeaders: any, fallbackPoller: any, eventCallback: any);
constructor(eventBus: Emitter, configurations: Options, url: string, apiKey: string, standardHeaders: Record<string, string>, fallbackPoller: Poller, logDebug: (...data: any[]) => void, logError: (...data: any[]) => void, eventCallback: (e: StreamEvent) => void);
start(): void;

@@ -19,3 +24,4 @@ close(): void;

private stopFallBackPolling;
private logDebug;
private logDebugMessage;
private logErrorMessage;
}

11

dist/types.d.ts

@@ -131,2 +131,7 @@ export interface Target {

cache?: boolean | CacheOptions;
/**
* Logger to use instead of the default console.log, console.error and console.info functions
* @default console
*/
logger?: Logger;
}

@@ -162,2 +167,8 @@ export interface MetricsInfo {

}
export interface Logger {
debug: (...data: any[]) => void;
error: (...data: any[]) => void;
warn: (...data: any[]) => void;
info: (...data: any[]) => void;
}
export {};

1

dist/utils.d.ts

@@ -6,4 +6,3 @@ import type { Options } from './types';

export declare const getConfiguration: (options: Options) => Options;
export declare const logError: (message: string, ...args: any[]) => void;
export declare const defer: (fn: Function, doDefer?: boolean) => void;
export declare const getRandom: (min: number, max: number) => number;

2

package.json
{
"name": "@harnessio/ff-javascript-client-sdk",
"version": "1.25.0",
"version": "1.26.0-rc.0",
"author": "Harness",

@@ -5,0 +5,0 @@ "license": "Apache-2.0",

33

README.md

@@ -60,2 +60,3 @@ # Before you Begin

cache?: boolean | CacheOptions
logger?: Logger
}

@@ -307,2 +308,34 @@ ```

## Logging
By default, the Javascript Client SDK will log errors and debug messages using the `console` object. In some cases, it
can be useful to instead log to a service or silently fail without logging errors.
```typescript
const myLogger = {
debug: (...data) => {
// do something with the logged debug message
},
info: (...data) => {
// do something with the logged info message
},
error: (...data) => {
// do something with the logged error message
},
warn: (...data) => {
// do something with the logged warning message
}
}
const client = initialize(
'00000000-1111-2222-3333-444444444444',
{
identifier: YOUR_TARGET_IDENTIFIER,
name: YOUR_TARGET_NAME
},
{
logger: myLogger // override logger
}
)
```
## Import directly from unpkg

@@ -309,0 +342,0 @@

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