burrata - npm Package Compare versions

Comparing version 0.2.3 to 0.3.0

dist/burrata.min.js

@@ -1,1 +0,1 @@
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package.json

 {
   "name": "burrata",
-  "version": "0.2.3",
+  "version": "0.3.0",
   "description": "Robust, developer-friendly postMessage.",
@@ -29,8 +29,8 @@ "repository": "https://github.com/timdp/burrata",
     "test": "yarn run test:lint && yarn run test:e2e",
-    "test:lint": "yarn run standard",
+    "test:lint": "yarn run standard '*.js' '{src,test,scripts,demo}/**/*.js'",
     "test:e2e": "yarn run clean:coverage && yarn run karma start",
     "test:cover": "yarn run karma start --mode=cover",
-    "dev": "yarn run karma start --no-single-run",
+    "dev": "yarn run karma start --mode=dev",
     "benchmark": "yarn run karma start --mode=benchmark",
-    "format": "yarn run prettier-standard '{src,test}/**/*.js'",
+    "format": "yarn run prettier-standard '*.js' '{src,test,scripts,demo}/**/*.js'",
     "precommit": "yarn run lint-staged"
@@ -89,2 +89,3 @@ },
     "globals": [
+      "localStorage",
       "performance",
@@ -102,5 +103,9 @@ "describe",
     "linters": {
-      "{src,test,scripts}/**/*.js": [
+      "*.js": [
         "prettier-standard",
         "git add"
+      ],
+      "{src,test,scripts,demo}/**/*.js": [
+        "prettier-standard",
+        "git add"
       ]
@@ -107,0 +112,0 @@ }

README.md

@@ -16,3 +16,4 @@ # Burrata
     ```js
-    const master = new burrata.Master()
+    const ns = 'testing' // Pick a namespace.
+    const master = new burrata.Master(ns)
 
@@ -32,5 +33,5 @@ // Register the "echo" command, which sends back the value of the "msg" arg.
     ```js
-    // Choose a unique ID for this slave.
-    const id = '123'
-    const slave = new burrata.Slave(id)
+    const ns = 'testing' // The same namespace as for the master.
+    const id = '123' // A unique ID for this slave.
+    const slave = new burrata.Slave(ns, id)
 
@@ -37,0 +38,0 @@ // Connect to master.

src/master.js

@@ -7,5 +7,5 @@ import { Node } from './node'
   constructor (master, id, target, origin) {
-    super(id, target, origin)
+    super(master.ns, id, target, origin)
     this._master = master
-    this._init(new Sender(this), master.receiver)
+    this._init(new Sender(this), master._receiver)
   }
@@ -18,3 +18,3 @@
   toString () {
-    return `Slave#${this.id}`
+    return `Slave{ns=${this.ns},id=${this.id}}`
   }
@@ -24,4 +24,4 @@ }
 class Master extends Node {
-  constructor (target = window, origin = '*') {
-    super('', target, origin)
+  constructor (ns = '', target = window, origin = '*') {
+    super(ns, '', target, origin)
     this._slaves = {}
@@ -45,3 +45,3 @@ this._init(null, new Receiver(this))
   toString () {
-    return 'Master'
+    return `Master{ns=${this.ns}}`
   }
@@ -48,0 +48,0 @@

src/node.js

 import EventTarget from 'event-target-shim'
 import CustomEvent from 'custom-event'
+import { Nodes } from './nodes'
 
-const instances = {}
-
 class Node extends EventTarget {
-  static get instances () {
-    return instances
-  }
-
-  constructor (id, target, origin) {
+  constructor (ns, id, target, origin) {
     super()
+    this._ns = ns
     this._id = id
@@ -19,5 +15,9 @@ this._target = target
     this._receiver = null
-    instances[id] = this
+    Nodes.set(ns, id, this)
   }
 
+  get ns () {
+    return this._ns
+  }
+
   get id () {
@@ -35,17 +35,4 @@ return this._id
 
-  get sender () {
-    return this._sender
-  }
-
-  get receiver () {
-    return this._receiver
-  }
-
   log (message) {
-    const evt = new CustomEvent('log', {
-      detail: {
-        message
-      }
-    })
-    this.dispatchEvent(evt)
+    this._dispatchEvent('log', { message })
   }
@@ -57,3 +44,3 @@
 
-  async handle (type, args, source) {
+  async _handle (type, args, source) {
     if (!this._handlers.hasOwnProperty(type)) {
@@ -70,11 +57,19 @@ throw new Error(`Unknown command: ${type}`)
 
-  _send (type, id, payload = {}) {
-    this._sender._send(type, id, payload)
+  async _respond (id, response) {
+    this._sender.respond(id, response)
   }
 
   async _receive (id) {
-    return this._receiver._receive(id)
+    return this._receiver.receive(id)
   }
+
+  _dispatchError (error) {
+    this._dispatchEvent('error', { error })
+  }
+
+  _dispatchEvent (type, detail) {
+    this.dispatchEvent(new CustomEvent(type, { detail }))
+  }
 }
 
 export { Node }

src/receiver.js

@@ -1,26 +0,12 @@
-import CustomEvent from 'custom-event'
 import defer from 'p-defer'
-import serializeError from 'serialize-error'
-import { Node } from './node'
+import { Nodes } from './nodes'
+import { serializeError, deserializeError, noop } from './util'
 
 const REQUIRED_DATA_PROPERTIES = ['type', 'from', 'id', 'payload']
-const ERROR_PROPERTIES = ['name', 'stack']
 
-const noop = () => {}
+const commands = {}
 
-const hydrateError = error => {
-  const err = new Error(error.message)
-  ERROR_PROPERTIES.forEach(name => {
-    const value = error[name]
-    try {
-      Object.defineProperty(err, name, {
-        configurable: true,
-        enumerable: false,
-        value,
-        writable: true
-      })
-    } catch (_) {}
-  })
-  return err
-}
+const isValidMessage = data =>
+  !REQUIRED_DATA_PROPERTIES.some(name => data[name] == null) &&
+  commands.hasOwnProperty(data.type)
 
@@ -32,7 +18,2 @@ class Receiver {
     this._onMessage = this._onMessage.bind(this)
-    this._commands = {
-      connect: this._handleConnect.bind(this),
-      request: this._handleRequest.bind(this),
-      response: this._handleResponse.bind(this)
-    }
   }
@@ -48,3 +29,3 @@
 
-  async _receive (id) {
+  async receive (id) {
     if (!this._dfds.hasOwnProperty(id)) {
@@ -58,6 +39,10 @@ const dfd = defer()
 
-  _onMessage (evt) {
+  toString () {
+    return `${this._node}#Receiver`
+  }
+
+  _onMessage (event) {
     let data = null
     try {
-      data = JSON.parse(evt.data)
+      data = JSON.parse(event.data)
     } catch (err) {}
@@ -67,14 +52,19 @@ if (
       typeof data !== 'object' ||
-      REQUIRED_DATA_PROPERTIES.some(name => data[name] == null) ||
-      !this._commands.hasOwnProperty(data.type)
+      data.ns !== this._node.ns ||
+      !isValidMessage(data)
     ) {
-      // TODO Warn
+      // TODO Handle
       return
     }
-    this._commands[data.type](data, evt.source).catch(err => {
-      this._dispatchError(new Error(`Failed to process ${data.type}: ${err}`))
+    const command = commands[data.type]
+    command.call(this, data, event.source).catch(error => {
+      this._node._dispatchError(
+        new Error(`Failed to process ${data.type}: ${error}`)
+      )
     })
   }
+}
 
-  async _handleConnect ({ id, from }, source) {
+Object.assign(commands, {
+  async connect ({ id, from }, source) {
     let slave
@@ -84,32 +74,31 @@ try {
     } catch (err) {
-      this._dispatchError(new Error(`Failed to accept connection: ${err}`))
+      this._node._dispatchError(
+        new Error(`Failed to accept connection: ${err}`)
+      )
       return
     }
-    this._dispatchEvent('connect', { slave })
-    await slave._send('response', id)
-  }
+    this._node._dispatchEvent('connect', { slave })
+    await slave._respond(id)
+  },
 
-  async _handleRequest ({ id, from, payload: { type, args } }) {
-    if (!Node.instances.hasOwnProperty(from)) {
-      // TODO Warn
+  async request ({ ns, id, from, payload: { type, args } }) {
+    if (!Nodes.has(ns, from)) {
+      // TODO Handle
       return
     }
-    const node = Node.instances[from]
+    const source = Nodes.get(ns, from)
     let result = null
     let error = null
     try {
-      result = await this._node.handle(type, args, node)
+      result = await this._node._handle(type, args, source)
     } catch (err) {
-      error = { message: '' + err }
-      try {
-        error = serializeError(err)
-      } catch (_) {}
+      error = serializeError(err)
     } finally {
-      await node._send('response', id, { error, result })
+      await source._respond(id, { error, result })
     }
-  }
+  },
 
-  async _handleResponse ({ id, from, payload: { error, result } }) {
+  async response ({ id, from, payload: { error, result } }) {
     if (!this._dfds.hasOwnProperty(id)) {
-      // TODO Warn
+      // TODO Handle
       return
@@ -120,3 +109,3 @@ }
     if (error != null) {
-      reject(hydrateError(error))
+      reject(deserializeError(error))
     } else {
@@ -126,12 +115,4 @@ resolve(result)
   }
+})
 
-  _dispatchError (error) {
-    this._dispatchEvent('error', { error })
-  }
-
-  _dispatchEvent (type, detail) {
-    this._node.dispatchEvent(new CustomEvent(type, { detail }))
-  }
-}
-
 export { Receiver }

src/sender.js

@@ -8,20 +8,28 @@ class Sender {
   async init () {
-    return this._sendAndReceive('connect')
+    await this._rawSend('connect')
   }
 
   async send (type, args) {
-    return this._sendAndReceive('request', { type, args })
+    return this._rawSend('request', { type, args })
   }
 
-  async _sendAndReceive (command, payload = {}) {
+  respond (id, response) {
+    this._postMessage('response', id, response)
+  }
+
+  toString () {
+    return `${this._node}#Sender`
+  }
+
+  async _rawSend (type, payload = {}) {
     const msgId = this._msgId++
     const id = `${this._node.id}:${msgId}`
     const receiving = this._node._receive(id)
-    this._send(command, id, payload)
+    this._postMessage(type, id, payload)
     return receiving
   }
 
-  _send (type, id, payload = {}) {
-    const { id: from, target, origin } = this._node
-    const msg = JSON.stringify({ type, from, id, payload })
+  _postMessage (type, id, payload = {}) {
+    const { ns, id: from, target, origin } = this._node
+    const msg = JSON.stringify({ type, from, ns, id, payload })
     target.postMessage(msg, origin)
@@ -28,0 +36,0 @@ }

src/slave.js

@@ -6,4 +6,4 @@ import { Node } from './node'
 class Slave extends Node {
-  constructor (id, target = window.parent, origin = '*') {
-    super(id, target, origin)
+  constructor (ns, id, target = window.parent, origin = '*') {
+    super(ns, id, target, origin)
     this._init(new Sender(this), new Receiver(this))
@@ -21,3 +21,3 @@ }
 
-  async send (type, args = {}) {
+  async send (type, args) {
     return this._sender.send(type, args)
@@ -27,3 +27,3 @@ }
   toString () {
-    return `Slave#${this.id}`
+    return `Slave{ns=${this.ns},id=${this.id}}`
   }
@@ -30,0 +30,0 @@ }

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

252138

increased by1.61%

Number of package files

13

increased by18.18%

Lines of code

5503

increased by1.95%

Number of lines in readme file

58

increased by1.75%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes