chore(release): 3.0.4

Diff: https://github.com/socketio/socket.io/compare/3.0.3...3.0.4

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,10 +7,10 @@
 * [ ] a code change that improves performance
 * [ ] other
 
-### Current behaviour
+### Current behavior
 
 
-### New behaviour
+### New behavior
 
 
 ### Other information (e.g. related issues)

.github/workflows/ci.yml

@@ -0,0 +1,26 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 0'
+
+jobs:
+  test-node:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm ci
+      - run: npm test
+        env:
+          CI: true

.travis.yml

@@ -1,10 +0,0 @@
-language: node_js
-sudo: false
-node_js:
-  - '10'
-  - '12'
-  - '14'
-notifications:
-  irc: "irc.freenode.org#socket.io"
-git:
-  depth: 1

CHANGELOG.md

@@ -1,3 +1,17 @@
+## [3.0.4](https://github.com/socketio/socket.io/compare/3.0.3...3.0.4) (2020-12-07)
+
+
+## [3.0.3](https://github.com/socketio/socket.io/compare/3.0.2...3.0.3) (2020-11-19)
+
+
+## [3.0.2](https://github.com/socketio/socket.io/compare/3.0.1...3.0.2) (2020-11-17)
+
+
+### Bug Fixes
+
+* merge Engine.IO options ([43705d7](https://github.com/socketio/socket.io/commit/43705d7a9149833afc69edc937ea7f8c9aabfeef))
+
+
 ## [3.0.1](https://github.com/socketio/socket.io/compare/3.0.0...3.0.1) (2020-11-09)
 
 

Readme.md

@@ -2,7 +2,7 @@
 # socket.io
 
 [![Backers on Open Collective](https://opencollective.com/socketio/backers/badge.svg)](#backers) [![Sponsors on Open Collective](https://opencollective.com/socketio/sponsors/badge.svg)](#sponsors)
-[![Build Status](https://secure.travis-ci.org/socketio/socket.io.svg?branch=master)](https://travis-ci.org/socketio/socket.io)
+[![Build Status](https://github.com/socketio/socket.io/workflows/CI/badge.svg)](https://github.com/socketio/socket.io/actions)
 [![Dependency Status](https://david-dm.org/socketio/socket.io.svg)](https://david-dm.org/socketio/socket.io)
 [![devDependency Status](https://david-dm.org/socketio/socket.io/dev-status.svg)](https://david-dm.org/socketio/socket.io#info=devDependencies)
 [![NPM version](https://badge.fury.io/js/socket.io.svg)](https://www.npmjs.com/package/socket.io)

client-dist/socket.io.js

@@ -1,5 +1,5 @@
 /*!
- * Socket.IO v3.0.1
+ * Socket.IO v3.0.4
  * (c) 2014-2020 Guillermo Rauch
  * Released under the MIT License.
  */
@@ -165,7 +165,7 @@ function lookup(uri, opts) {
   var source = parsed.source;
   var id = parsed.id;
   var path = parsed.path;
-  var sameNamespace = cache[id] && path in cache[id].nsps;
+  var sameNamespace = cache[id] && path in cache[id]["nsps"];
   var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
   var io;
 
@@ -298,7 +298,6 @@ var Manager = /*#__PURE__*/function (_Emitter) {
     _this = _super.call(this);
     _this.nsps = {};
     _this.subs = [];
-    _this.connecting = [];
 
     if (uri && "object" === _typeof(uri)) {
       opts = uri;
@@ -356,25 +355,31 @@ var Manager = /*#__PURE__*/function (_Emitter) {
   }, {
     key: "reconnectionDelay",
     value: function reconnectionDelay(v) {
+      var _a;
+
       if (v === undefined) return this._reconnectionDelay;
       this._reconnectionDelay = v;
-      this.backoff && this.backoff.setMin(v);
+      (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMin(v);
       return this;
     }
   }, {
     key: "randomizationFactor",
     value: function randomizationFactor(v) {
+      var _a;
+
       if (v === undefined) return this._randomizationFactor;
       this._randomizationFactor = v;
-      this.backoff && this.backoff.setJitter(v);
+      (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setJitter(v);
       return this;
     }
   }, {
     key: "reconnectionDelayMax",
     value: function reconnectionDelayMax(v) {
+      var _a;
+
       if (v === undefined) return this._reconnectionDelayMax;
       this._reconnectionDelayMax = v;
-      this.backoff && this.backoff.setMax(v);
+      (_a = this.backoff) === null || _a === void 0 ? void 0 : _a.setMax(v);
       return this;
     }
   }, {
@@ -404,7 +409,7 @@ var Manager = /*#__PURE__*/function (_Emitter) {
      * Sets the current transport `socket`.
      *
      * @param {Function} fn - optional, callback
-     * @return {Manager} self
+     * @return self
      * @public
      */
 
@@ -499,11 +504,7 @@ var Manager = /*#__PURE__*/function (_Emitter) {
 
 
       var socket = this.engine;
-      this.subs.push(on_1.on(socket, "data", bind(this, "ondata")));
-      this.subs.push(on_1.on(socket, "ping", bind(this, "onping")));
-      this.subs.push(on_1.on(socket, "error", bind(this, "onerror")));
-      this.subs.push(on_1.on(socket, "close", bind(this, "onclose")));
-      this.subs.push(on_1.on(this.decoder, "decoded", bind(this, "ondecoded")));
+      this.subs.push(on_1.on(socket, "data", bind(this, "ondata")), on_1.on(socket, "ping", bind(this, "onping")), on_1.on(socket, "error", bind(this, "onerror")), on_1.on(socket, "close", bind(this, "onclose")), on_1.on(this.decoder, "decoded", bind(this, "ondecoded")));
     }
     /**
      * Called upon a ping.
@@ -566,19 +567,6 @@ var Manager = /*#__PURE__*/function (_Emitter) {
       if (!socket) {
         socket = new socket_1.Socket(this, nsp, opts);
         this.nsps[nsp] = socket;
-        var self = this;
-        socket.on("connecting", onConnecting);
-
-        if (this._autoConnect) {
-          // manually call here since connecting event is fired before listening
-          onConnecting();
-        }
-      }
-
-      function onConnecting() {
-        if (!~self.connecting.indexOf(socket)) {
-          self.connecting.push(socket);
-        }
       }
 
       return socket;
@@ -586,23 +574,31 @@ var Manager = /*#__PURE__*/function (_Emitter) {
     /**
      * Called upon a socket close.
      *
-     * @param {Socket} socket
+     * @param socket
      * @private
      */
 
   }, {
     key: "_destroy",
     value: function _destroy(socket) {
-      var index = this.connecting.indexOf(socket);
-      if (~index) this.connecting.splice(index, 1);
-      if (this.connecting.length) return;
+      var nsps = Object.keys(this.nsps);
+
+      for (var _i = 0, _nsps = nsps; _i < _nsps.length; _i++) {
+        var nsp = _nsps[_i];
+        var _socket = this.nsps[nsp];
+
+        if (_socket.active) {
+          debug("socket %s is still active, skipping close", nsp);
+          return;
+        }
+      }
 
       this._close();
     }
     /**
      * Writes a packet.
      *
-     * @param {Object} packet
+     * @param packet
      * @private
      */
 
@@ -786,7 +782,7 @@ function on(obj, ev, fn) {
   obj.on(ev, fn);
   return {
     destroy: function destroy() {
-      obj.removeListener(ev, fn);
+      obj.off(ev, fn);
     }
   };
 }
@@ -857,7 +853,7 @@ var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.j
  */
 
 
-var RESERVED_EVENTS = {
+var RESERVED_EVENTS = Object.freeze({
   connect: 1,
   connect_error: 1,
   disconnect: 1,
@@ -865,7 +861,7 @@ var RESERVED_EVENTS = {
   // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
   newListener: 1,
   removeListener: 1
-};
+});
 
 var Socket = /*#__PURE__*/function (_Emitter) {
   _inherits(Socket, _Emitter);
@@ -920,17 +916,21 @@ var Socket = /*#__PURE__*/function (_Emitter) {
       this.subs = [on_1.on(io, "open", bind(this, "onopen")), on_1.on(io, "packet", bind(this, "onpacket")), on_1.on(io, "close", bind(this, "onclose"))];
     }
     /**
-     * "Opens" the socket.
-     *
-     * @public
+     * Whether the Socket will try to reconnect when its Manager connects or reconnects
      */
 
   }, {
     key: "connect",
+
+    /**
+     * "Opens" the socket.
+     *
+     * @public
+     */
     value: function connect() {
       if (this.connected) return this;
       this.subEvents();
-      if (!this.io._reconnecting) this.io.open(); // ensure open
+      if (!this.io["_reconnecting"]) this.io.open(); // ensure open
 
       if ("open" === this.io._readyState) this.onopen();
       return this;
@@ -947,7 +947,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Sends a `message` event.
      *
-     * @return {Socket} self
+     * @return self
      * @public
      */
 
@@ -966,8 +966,8 @@ var Socket = /*#__PURE__*/function (_Emitter) {
      * Override `emit`.
      * If the event is in `events`, it's emitted normally.
      *
-     * @param {String} ev - event name
-     * @return {Socket} self
+     * @param ev - event name
+     * @return self
      * @public
      */
 
@@ -1013,7 +1013,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Sends a packet.
      *
-     * @param {Object} packet
+     * @param packet
      * @private
      */
 
@@ -1054,7 +1054,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Called upon engine `close`.
      *
-     * @param {String} reason
+     * @param reason
      * @private
      */
 
@@ -1071,7 +1071,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Called with socket packet.
      *
-     * @param {Object} packet
+     * @param packet
      * @private
      */
 
@@ -1083,8 +1083,13 @@ var Socket = /*#__PURE__*/function (_Emitter) {
 
       switch (packet.type) {
         case socket_io_parser_1.PacketType.CONNECT:
-          var id = packet.data.sid;
-          this.onconnect(id);
+          if (packet.data && packet.data.sid) {
+            var id = packet.data.sid;
+            this.onconnect(id);
+          } else {
+            _get(_getPrototypeOf(Socket.prototype), "emit", this).call(this, "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 socket_io_parser_1.PacketType.EVENT:
@@ -1120,7 +1125,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Called upon a server event.
      *
-     * @param {Object} packet
+     * @param packet
      * @private
      */
 
@@ -1138,7 +1143,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
       if (this.connected) {
         this.emitEvent(args);
       } else {
-        this.receiveBuffer.push(args);
+        this.receiveBuffer.push(Object.freeze(args));
       }
     }
   }, {
@@ -1195,7 +1200,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Called upon a server acknowlegement.
      *
-     * @param {Object} packet
+     * @param packet
      * @private
      */
 
@@ -1221,6 +1226,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
   }, {
     key: "onconnect",
     value: function onconnect(id) {
+      debug("socket connected with id %s", id);
       this.id = id;
       this.connected = true;
       this.disconnected = false;
@@ -1238,16 +1244,15 @@ var Socket = /*#__PURE__*/function (_Emitter) {
   }, {
     key: "emitBuffered",
     value: function emitBuffered() {
-      for (var i = 0; i < this.receiveBuffer.length; i++) {
-        this.emitEvent(this.receiveBuffer[i]);
-      }
+      var _this3 = this;
 
+      this.receiveBuffer.forEach(function (args) {
+        return _this3.emitEvent(args);
+      });
       this.receiveBuffer = [];
-
-      for (var _i = 0; _i < this.sendBuffer.length; _i++) {
-        this.packet(this.sendBuffer[_i]);
-      }
-
+      this.sendBuffer.forEach(function (packet) {
+        return _this3.packet(packet);
+      });
       this.sendBuffer = [];
     }
     /**
@@ -1283,12 +1288,12 @@ var Socket = /*#__PURE__*/function (_Emitter) {
         this.subs = null;
       }
 
-      this.io._destroy(this);
+      this.io["_destroy"](this);
     }
     /**
      * Disconnects the socket manually.
      *
-     * @return {Socket} self
+     * @return self
      * @public
      */
 
@@ -1315,7 +1320,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Alias for disconnect()
      *
-     * @return {Socket} self
+     * @return self
      * @public
      */
 
@@ -1327,8 +1332,8 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     /**
      * Sets the compress flag.
      *
-     * @param {Boolean} compress - if `true`, compresses the sending data
-     * @return {Socket} self
+     * @param compress - if `true`, compresses the sending data
+     * @return self
      * @public
      */
 
@@ -1342,7 +1347,7 @@ var Socket = /*#__PURE__*/function (_Emitter) {
      * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
      * ready to send messages.
      *
-     * @returns {Socket} self
+     * @returns self
      * @public
      */
 
@@ -1421,6 +1426,11 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     value: function listenersAny() {
       return this._anyListeners || [];
     }
+  }, {
+    key: "active",
+    get: function get() {
+      return !!this.subs;
+    }
   }, {
     key: "volatile",
     get: function get() {
@@ -1457,9 +1467,9 @@ var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.j
 /**
  * URL parser.
  *
- * @param {String} uri - url
- * @param {Object} loc - An object meant to mimic window.location.
- *                 Defaults to window.location.
+ * @param uri - url
+ * @param loc - An object meant to mimic window.location.
+ *        Defaults to window.location.
  * @public
  */
 
@@ -1470,7 +1480,7 @@ function url(uri, loc) {
   loc = loc || typeof location !== "undefined" && location;
   if (null == uri) uri = loc.protocol + "//" + loc.host; // relative path support
 
-  if ("string" === typeof uri) {
+  if (typeof uri === "string") {
     if ("/" === uri.charAt(0)) {
       if ("/" === uri.charAt(1)) {
         uri = loc.protocol + uri;
@@ -2521,10 +2531,10 @@ var Socket = /*#__PURE__*/function (_Emitter) {
     _this.opts = _extends({
       path: "/engine.io",
       agent: false,
+      withCredentials: false,
       upgrade: true,
       jsonp: true,
       timestampParam: "t",
-      policyPort: 843,
       rememberUpgrade: false,
       rejectUnauthorized: true,
       perMessageDeflate: {
@@ -3662,8 +3672,6 @@ var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.j
 function empty() {}
 
 var hasXHR2 = function () {
-  var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/engine.io-client/lib/xmlhttprequest.js");
-
   var xhr = new XMLHttpRequest({
     xdomain: false
   });
@@ -3722,7 +3730,6 @@ var XHR = /*#__PURE__*/function (_Polling) {
       var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
 
       _extends(opts, {
-        supportsBinary: this.supportsBinary,
         xd: this.xd,
         xs: this.xs
       }, this.opts);
@@ -3740,11 +3747,9 @@ var XHR = /*#__PURE__*/function (_Polling) {
   }, {
     key: "doWrite",
     value: function doWrite(data, fn) {
-      var isBinary = typeof data !== "string" && data !== undefined;
       var req = this.request({
         method: "POST",
-        data: data,
-        isBinary: isBinary
+        data: data
       });
       var self = this;
       req.on("success", fn);
@@ -3799,8 +3804,6 @@ var Request = /*#__PURE__*/function (_Emitter) {
     _this2.uri = uri;
     _this2.async = false !== opts.async;
     _this2.data = undefined !== opts.data ? opts.data : null;
-    _this2.isBinary = opts.isBinary;
-    _this2.supportsBinary = opts.supportsBinary;
 
     _this2.create();
 
@@ -3836,17 +3839,11 @@ var Request = /*#__PURE__*/function (_Emitter) {
               }
             }
           }
-        } catch (e) {
-          console.log(e);
-        }
+        } catch (e) {}
 
         if ("POST" === this.method) {
           try {
-            if (this.isBinary) {
-              xhr.setRequestHeader("Content-type", "application/octet-stream");
-            } else {
-              xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
-            }
+            xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
           } catch (e) {}
         }
 
@@ -3873,16 +3870,6 @@ var Request = /*#__PURE__*/function (_Emitter) {
           };
         } else {
           xhr.onreadystatechange = function () {
-            if (xhr.readyState === 2) {
-              try {
-                var contentType = xhr.getResponseHeader("Content-Type");
-
-                if (self.supportsBinary && contentType === "application/octet-stream" || contentType === "application/octet-stream; charset=UTF-8") {
-                  xhr.responseType = "arraybuffer";
-                }
-              } catch (e) {}
-            }
-
             if (4 !== xhr.readyState) return;
 
             if (200 === xhr.status || 1223 === xhr.status) {
@@ -4188,7 +4175,7 @@ var Polling = /*#__PURE__*/function (_Transport) {
 
       var callback = function callback(packet, index, total) {
         // if its the first message we consider the transport open
-        if ("opening" === self.readyState) {
+        if ("opening" === self.readyState && packet.type === "open") {
           self.onOpen();
         } // if its a close packet, we close the ongoing requests
 
@@ -4404,14 +4391,7 @@ var WS = /*#__PURE__*/function (_Transport) {
     _classCallCheck(this, WS);
 
     _this = _super.call(this, opts);
-    var forceBase64 = opts && opts.forceBase64;
-
-    if (forceBase64) {
-      _this.supportsBinary = false;
-    } // WebSockets support binary
-
-
-    _this.supportsBinary = true;
+    _this.supportsBinary = !opts.forceBase64;
     return _this;
   }
   /**
@@ -4436,14 +4416,9 @@ var WS = /*#__PURE__*/function (_Transport) {
       }
 
       var uri = this.uri();
-      var protocols = this.opts.protocols;
-      var opts;
+      var protocols = this.opts.protocols; // React Native only supports the 'headers' option, and will print a warning if anything else is passed
 
-      if (isReactNative) {
-        opts = pick(this.opts, "localAddress");
-      } else {
-        opts = pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress");
-      }
+      var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress");
 
       if (this.opts.extraHeaders) {
         opts.headers = this.opts.extraHeaders;

examples/react-native/README.md

@@ -14,3 +14,7 @@ $ npm ci
 $ npm start # run expo
 $ node server.js # run the server
 ```
+
+You will probably need to update the IP address of your server in the `App.js` file:
+
+![IP address](assets/server-ip.png)

examples/react-native/package-lock.json

@@ -1236,6 +1236,11 @@
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
       "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
     },
+    "@types/component-emitter": {
+      "version": "1.2.10",
+      "resolved": "https://registry.npmjs.org/@types/component-emitter/-/component-emitter-1.2.10.tgz",
+      "integrity": "sha512-bsjleuRKWmGqajMerkzox19aGbscQX5rmmvvXl3wlIp5gMG1HgkiwPxsN5p070fBDKTNSPgojVbuY1+HWMbFhg=="
+    },
     "@types/fbemitter": {
       "version": "2.0.32",
       "resolved": "https://registry.npmjs.org/@types/fbemitter/-/fbemitter-2.0.32.tgz",
@@ -1349,11 +1354,6 @@
         "negotiator": "0.6.2"
       }
     },
-    "after": {
-      "version": "0.8.2",
-      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
-      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
-    },
     "ansi-colors": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
@@ -1486,11 +1486,6 @@
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
       "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
     },
-    "arraybuffer.slice": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz",
-      "integrity": "sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog=="
-    },
     "art": {
       "version": "0.10.3",
       "resolved": "https://registry.npmjs.org/art/-/art-0.10.3.tgz",
@@ -1671,9 +1666,9 @@
       }
     },
     "base64-arraybuffer": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
-      "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.4.tgz",
+      "integrity": "sha1-mBjHngWbE1X5fgQooBfIOOkLqBI="
     },
     "base64-js": {
       "version": "1.3.1",
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+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
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+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
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+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.2.tgz",
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         "base64id": "2.0.0",
-        "cookie": "0.3.1",
+        "cookie": "~0.4.1",
+        "cors": "~2.8.5",
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-        "engine.io-parser": "~2.2.0",
+        "engine.io-parser": "~4.0.0",
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-          "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.0.tgz",
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+          "version": "7.4.0",
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+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.3.tgz",
+      "integrity": "sha512-2U6dZkOrMGpVh11l+4pMXHMDnirnzIPIYfugEUpnAl0/3wBb+GO7euu0TT3Nn8E5hgaWSpUA+XOfrch2uZdyGA==",
       "requires": {
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         "component-emitter": "~1.3.0",
-        "component-inherit": "0.0.3",
         "debug": "~4.1.0",
-        "engine.io-parser": "~2.2.0",
+        "engine.io-parser": "~4.0.1",
         "has-cors": "1.1.0",
-        "indexof": "0.0.1",
-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "ws": "~6.1.0",
+        "parseqs": "0.0.6",
+        "parseuri": "0.0.6",
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         "xmlhttprequest-ssl": "~1.5.4",
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     "engine.io-parser": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-2.2.0.tgz",
-      "integrity": "sha512-6I3qD9iUxotsC5HEMuuGsKA0cXerGz+4uGcXQEkfBidgKf0amsjrrtwcbwK/nzpZBxclXlV7gGl9dgWvu4LF6w==",
-      "requires": {
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-        "arraybuffer.slice": "~0.0.7",
-        "base64-arraybuffer": "0.1.5",
-        "blob": "0.0.5",
-        "has-binary2": "~1.0.2"
-      }
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-4.0.1.tgz",
+      "integrity": "sha512-v5aZK1hlckcJDGmHz3W8xvI3NUHYc9t8QtTbqdR5OaH3S9iJZilPubauOm+vLWOMMWzpE3hiq92l9lTAHamRCg=="
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@@ -3118,21 +3089,6 @@
       "resolved": "https://registry.npmjs.org/growly/-/growly-1.3.0.tgz",
       "integrity": "sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE="
     },
-    "has-binary2": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/has-binary2/-/has-binary2-1.0.3.tgz",
-      "integrity": "sha512-G1LWKhDSvhGeAQ8mPVQlqNcOB2sJdwATtZKl2pDKKHfpf/rYj24lkinxf69blJbnsvtqqNU+L3SL50vzZhXOnw==",
-      "requires": {
-        "isarray": "2.0.1"
-      },
-      "dependencies": {
-        "isarray": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
-        }
-      }
-    },
     "has-cors": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/has-cors/-/has-cors-1.1.0.tgz",
@@ -3236,11 +3192,6 @@
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
       "integrity": "sha1-khi5srkoojixPcT7a21XbyMUU+o="
     },
-    "indexof": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/indexof/-/indexof-0.0.1.tgz",
-      "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10="
-    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -4546,11 +4497,6 @@
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
       "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
     },
-    "object-component": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/object-component/-/object-component-0.0.3.tgz",
-      "integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE="
-    },
     "object-copy": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/object-copy/-/object-copy-0.1.0.tgz",
@@ -4763,20 +4709,14 @@
       "integrity": "sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA=="
     },
     "parseqs": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.5.tgz",
-      "integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/parseqs/-/parseqs-0.0.6.tgz",
+      "integrity": "sha512-jeAGzMDbfSHHA091hr0r31eYfTig+29g3GKKE/PPbEQ65X0lmMwlEoqmhzu0iztID5uJpZsFlUPDP8ThPL7M8w=="
     },
     "parseuri": {
-      "version": "0.0.5",
-      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
-      "integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
-      "requires": {
-        "better-assert": "~1.0.0"
-      }
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.6.tgz",
+      "integrity": "sha512-AUjen8sAkGgao7UyCX6Ahv0gIK2fABKmYjvP4xmy5JaKvcbTRueIqIPHLAfq30xJddqSE033IOMUSOMCcK3Sow=="
     },
     "parseurl": {
       "version": "1.3.3",
@@ -5925,101 +5865,45 @@
       }
     },
     "socket.io": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.3.0.tgz",
-      "integrity": "sha512-2A892lrj0GcgR/9Qk81EaY2gYhCBxurV0PfmmESO6p27QPrUK1J3zdns+5QPqvUYK2q657nSj0guoIil9+7eFg==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.1.tgz",
+      "integrity": "sha512-oVYbCQ4sCwm4wVi+f1bsE3YFXcvd6b4JjVP8D7IZnQqBeJOKX9XrdgJWSbXqBEqUXPY3jdTqb1M3s4KFTa/IHg==",
       "requires": {
+        "accepts": "~1.3.4",
+        "base64id": "~2.0.0",
         "debug": "~4.1.0",
-        "engine.io": "~3.4.0",
-        "has-binary2": "~1.0.2",
-        "socket.io-adapter": "~1.1.0",
-        "socket.io-client": "2.3.0",
-        "socket.io-parser": "~3.4.0"
+        "engine.io": "~4.0.0",
+        "socket.io-adapter": "~2.0.3",
+        "socket.io-parser": "~4.0.1"
       }
     },
     "socket.io-adapter": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-1.1.2.tgz",
-      "integrity": "sha512-WzZRUj1kUjrTIrUKpZLEzFZ1OLj5FwLlAFQs9kuZJzJi5DKdU7FsWc36SNmA8iDOtwBQyT8FkrriRM8vXLYz8g=="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3.tgz",
+      "integrity": "sha512-2wo4EXgxOGSFueqvHAdnmi5JLZzWqMArjuP4nqC26AtLh5PoCPsaRbRdah2xhcwTAMooZfjYiNVNkkmmSMaxOQ=="
     },
     "socket.io-client": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.3.0.tgz",
-      "integrity": "sha512-cEQQf24gET3rfhxZ2jJ5xzAOo/xhZwK+mOqtGRg5IowZsMgwvHwnf/mCRapAAkadhM26y+iydgwsXGObBB5ZdA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.1.tgz",
+      "integrity": "sha512-iIzWRDrF/h3KPtHjvLt5LL/1n7Euvv35zVa1r10ScRjVw40yc8DxFj7GnKrj1RNYkbtveWOwEsy2lWp3oFJO7w==",
       "requires": {
+        "@types/component-emitter": "^1.2.10",
         "backo2": "1.0.2",
-        "base64-arraybuffer": "0.1.5",
         "component-bind": "1.0.0",
-        "component-emitter": "1.2.1",
+        "component-emitter": "~1.3.0",
         "debug": "~4.1.0",
-        "engine.io-client": "~3.4.0",
-        "has-binary2": "~1.0.2",
-        "has-cors": "1.1.0",
-        "indexof": "0.0.1",
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-        "parseqs": "0.0.5",
-        "parseuri": "0.0.5",
-        "socket.io-parser": "~3.3.0",
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-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
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-          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
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-        "ms": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-        },
-        "socket.io-parser": {
-          "version": "3.3.0",
-          "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.0.tgz",
-          "integrity": "sha512-hczmV6bDgdaEbVqhAeVMM/jfUfzuEZHsQg6eOmLgJht6G3mPKMxYm75w2+qhAQZ+4X+1+ATZ+QFKeOZD5riHng==",
-          "requires": {
-            "component-emitter": "1.2.1",
-            "debug": "~3.1.0",
-            "isarray": "2.0.1"
-          },
-          "dependencies": {
-            "debug": {
-              "version": "3.1.0",
-              "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-              "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-              "requires": {
-                "ms": "2.0.0"
-              }
-            }
-          }
-        }
+        "engine.io-client": "~4.0.0",
+        "parseuri": "0.0.6",
+        "socket.io-parser": "~4.0.1"
       }
     },
     "socket.io-parser": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
-      "integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
       "requires": {
-        "component-emitter": "1.2.1",
-        "debug": "~4.1.0",
-        "isarray": "2.0.1"
-      },
-      "dependencies": {
-        "component-emitter": {
-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
-        },
-        "isarray": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
-        }
+        "component-emitter": "~1.3.0",
+        "debug": "~4.1.0"
       }
     },
     "sort-keys": {
@@ -6284,11 +6168,6 @@
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.4.tgz",
       "integrity": "sha1-I2QN17QtAEM5ERQIIOXPRA5SHdE="
     },
-    "to-array": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
-    },
     "to-fast-properties": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",

examples/react-native/package.json

@@ -13,8 +13,8 @@
     "react-dom": "~16.9.0",
     "react-native": "https://github.com/expo/react-native/archive/sdk-37.0.1.tar.gz",
     "react-native-web": "~0.11.7",
-    "socket.io": "~2.3.0",
-    "socket.io-client": "~2.3.0"
+    "socket.io": "^3.0.1",
+    "socket.io-client": "^3.0.1"
   },
   "devDependencies": {
     "babel-preset-expo": "~8.1.0",

examples/react-native/server.js

@@ -8,7 +8,11 @@ io.on('connection', socket => {
   });
 });
 
-io.listen(3000);
+io.listen(3000, {
+  cors: {
+    origin: ["http://localhost:19006"]
+  }
+});
 
 setInterval(() => {
   io.emit('message', new Date().toISOString());

examples/typescript/package-lock.json

@@ -1,5 +1,5 @@
 {
-  "name": "typescript",
+  "name": "typescript-example",
   "version": "1.0.0",
   "lockfileVersion": 1,
   "requires": true,
@@ -81,9 +81,9 @@
       "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A=="
     },
     "engine.io": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.1.tgz",
-      "integrity": "sha512-6EaSBxasBUwxRdf6B68SEYpD3tcrG80J4YTzHl/D+9Q+vM0AMHZabfYcc2WdnvEaQxZjX/UZsa+UdGoM0qQQkQ==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-4.0.2.tgz",
+      "integrity": "sha512-sumdttqWLNjbuSMOSgDdL2xiEld9s5QZDk9VLyr4e28o+lzNNADhU3qpQDAY7cm2VZH0Otw/U0fL8mEjZ6kBMg==",
       "requires": {
         "accepts": "~1.3.4",
         "base64id": "2.0.0",
@@ -95,9 +95,9 @@
       }
     },
     "engine.io-client": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.1.tgz",
-      "integrity": "sha512-3XXfWrEutlf1vg5PlS805bD+AgZXhRIKYAG04f1iCGOs70dWEYlZGfCZUNwPwNx05lBCKs1lIeL3SkLB0P++xw==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.0.2.tgz",
+      "integrity": "sha512-cfzFu0u7rr/Gmz/CefwZ6mBj9kxtsOtOavV/YLbn+2sPGE1ZTSWh3tj8427a0od+BK27zsWDpnDx98fnpnmksA==",
       "requires": {
         "base64-arraybuffer": "0.1.4",
         "component-emitter": "~1.3.0",
@@ -172,27 +172,27 @@
       "integrity": "sha512-AUjen8sAkGgao7UyCX6Ahv0gIK2fABKmYjvP4xmy5JaKvcbTRueIqIPHLAfq30xJddqSE033IOMUSOMCcK3Sow=="
     },
     "socket.io": {
-      "version": "3.0.0-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.0-rc3.tgz",
-      "integrity": "sha512-AVIpRd7OTyhCgg5muz0AqeF06csptsnP8UP10ubLrnL7XKplJFDadUB9fEbwB3iLMpf1NT+YfqTBCVKHhpMlZA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-3.0.1.tgz",
+      "integrity": "sha512-oVYbCQ4sCwm4wVi+f1bsE3YFXcvd6b4JjVP8D7IZnQqBeJOKX9XrdgJWSbXqBEqUXPY3jdTqb1M3s4KFTa/IHg==",
       "requires": {
         "accepts": "~1.3.4",
         "base64id": "~2.0.0",
         "debug": "~4.1.0",
         "engine.io": "~4.0.0",
-        "socket.io-adapter": "2.0.3-rc2",
-        "socket.io-parser": "4.0.1-rc3"
+        "socket.io-adapter": "~2.0.3",
+        "socket.io-parser": "~4.0.1"
       }
     },
     "socket.io-adapter": {
-      "version": "2.0.3-rc2",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3-rc2.tgz",
-      "integrity": "sha512-ic/fttwhpQ2Ry43ou6gOIeZgpGmsIUFQZ0Ww0DIpCerTKzDdLPG2+AEomG5SGXpppvtbwwesB7O9Azq0JiSs/g=="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.0.3.tgz",
+      "integrity": "sha512-2wo4EXgxOGSFueqvHAdnmi5JLZzWqMArjuP4nqC26AtLh5PoCPsaRbRdah2xhcwTAMooZfjYiNVNkkmmSMaxOQ=="
     },
     "socket.io-client": {
-      "version": "3.0.0-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.0-rc3.tgz",
-      "integrity": "sha512-9w67FZtTsGlDiwpobQ0l1UeLinx6LuFYEHGTcFRc5P5PyY/4M6ZI7nBFxIhjf0l8DTUfAJwllqzNxSqMW5nxhw==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-3.0.1.tgz",
+      "integrity": "sha512-iIzWRDrF/h3KPtHjvLt5LL/1n7Euvv35zVa1r10ScRjVw40yc8DxFj7GnKrj1RNYkbtveWOwEsy2lWp3oFJO7w==",
       "requires": {
         "@types/component-emitter": "^1.2.10",
         "backo2": "1.0.2",
@@ -201,13 +201,13 @@
         "debug": "~4.1.0",
         "engine.io-client": "~4.0.0",
         "parseuri": "0.0.6",
-        "socket.io-parser": "4.0.1-rc3"
+        "socket.io-parser": "~4.0.1"
       }
     },
     "socket.io-parser": {
-      "version": "4.0.1-rc3",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1-rc3.tgz",
-      "integrity": "sha512-H85dvTVUOBMzquX5AojQvxRPCvH7jMkrhp2la+2gYn/uiS20sK1U8osWCMwU00oUITDUkjDTxLjw0fGkDTA76w==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.1.tgz",
+      "integrity": "sha512-5JfNykYptCwU2lkOI0ieoePWm+6stEhkZ2UnLDjqnE1YEjUlXXLd1lpxPZ+g+h3rtaytwWkWrLQCaJULlGqjOg==",
       "requires": {
         "component-emitter": "~1.3.0",
         "debug": "~4.1.0"
@@ -239,15 +239,20 @@
         "yn": "3.1.1"
       }
     },
+    "typescript": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ=="
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
     "ws": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.0.tgz",
+      "integrity": "sha512-kyFwXuV/5ymf+IXhS6f0+eAFvydbaBW3zjpT6hUdAh/hbVjTIB5EHBGi0bPoCLSK2wcuz3BrEkB9LrYv1Nm4NQ=="
     },
     "xmlhttprequest-ssl": {
       "version": "1.5.5",

examples/typescript/package.json

@@ -1,17 +1,19 @@
 {
-  "name": "typescript",
+  "name": "typescript-example",
   "version": "1.0.0",
   "description": "An example with TypeScript",
   "private": true,
   "scripts": {
+    "build": "tsc",
     "start:server": "ts-node server.ts",
     "start:client": "ts-node client.ts"
   },
   "author": "Damien Arrachequesne",
   "license": "MIT",
   "dependencies": {
-    "socket.io": "beta",
-    "socket.io-client": "beta",
-    "ts-node": "^9.0.0"
+    "socket.io": "^3.0.1",
+    "socket.io-client": "^3.0.1",
+    "ts-node": "^9.0.0",
+    "typescript": "^4.0.5"
   }
 }

examples/typescript/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "es5"
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}

lib/index.ts

@@ -169,6 +169,7 @@ export class Server extends EventEmitter {
   > = new Map();
   private _adapter: any;
   private _serveClient: boolean;
+  private opts: Partial<EngineOptions>;
   private eio;
   private engine;
   private _path: string;
@@ -203,7 +204,8 @@ export class Server extends EventEmitter {
     this.encoder = new this._parser.Encoder();
     this.adapter(opts.adapter || Adapter);
     this.sockets = this.of("/");
-    if (srv) this.attach(srv, opts);
+    this.opts = opts;
+    if (srv) this.attach(srv);
   }
 
   /**
@@ -357,6 +359,8 @@ export class Server extends EventEmitter {
       srv.listen(port);
     }
 
+    // merge the options passed to the Socket.IO server
+    Object.assign(opts, this.opts);
     // set engine.io path to `/socket.io`
     opts.path = opts.path || this._path;
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "socket.io",
-  "version": "3.0.1",
+  "version": "3.0.4",
   "description": "node.js realtime framework server",
   "keywords": [
     "realtime",
@@ -29,12 +29,16 @@
     "url": "git://github.com/socketio/socket.io"
   },
   "scripts": {
-    "test": "npm run format:check && tsc && nyc mocha --require ts-node/register --reporter spec --slow 200 --bail --timeout 10000 test/socket.io.ts",
-    "format:check": "prettier --check 'lib/**/*.ts' 'test/**/*.ts'",
-    "format:fix": "prettier --write 'lib/**/*.ts' 'test/**/*.ts'",
-    "prepack": "tsc"
+    "compile": "rimraf ./dist && tsc",
+    "test": "npm run format:check && npm run compile && nyc mocha --require ts-node/register --reporter spec --slow 200 --bail --timeout 10000 test/socket.io.ts",
+    "format:check": "prettier --check \"lib/**/*.ts\" \"test/**/*.ts\"",
+    "format:fix": "prettier --write \"lib/**/*.ts\" \"test/**/*.ts\"",
+    "prepack": "npm run compile"
   },
   "dependencies": {
+    "@types/cookie": "^0.4.0",
+    "@types/cors": "^2.8.8",
+    "@types/node": "^14.14.7",
     "accepts": "~1.3.4",
     "base64id": "~2.0.0",
     "debug": "~4.1.0",
@@ -43,18 +47,16 @@
     "socket.io-parser": "~4.0.1"
   },
   "devDependencies": {
-    "@types/cookie": "^0.4.0",
-    "@types/cors": "^2.8.7",
     "@types/mocha": "^8.0.3",
-    "@types/node": "^14.11.2",
     "babel-eslint": "^10.1.0",
     "eslint": "^7.9.0",
     "eslint-config-prettier": "^6.11.0",
     "expect.js": "0.3.1",
     "mocha": "^3.5.3",
-    "nyc": "^11.2.1",
+    "nyc": "^15.1.0",
     "prettier": "^1.19.1",
-    "socket.io-client": "3.0.0",
+    "rimraf": "^3.0.2",
+    "socket.io-client": "3.0.4",
     "superagent": "^3.8.2",
     "supertest": "^3.0.0",
     "ts-node": "^9.0.0",

test/socket.io.ts

@@ -26,7 +26,7 @@ function client(srv, nsp?: string | object, opts?: object) {
 }
 
 describe("socket.io", () => {
-  it.skip("should be the same version as client", () => {
+  it("should be the same version as client", () => {
     const version = require("../package").version;
     expect(version).to.be(require("socket.io-client/package.json").version);
   });
@@ -138,6 +138,24 @@ describe("socket.io", () => {
             done();
           });
       });
+
+      it("should work with #attach (and merge options)", () => {
+        const srv = createServer((req, res) => {
+          res.writeHead(404);
+          res.end();
+        });
+        const server = new Server({
+          pingTimeout: 6000
+        });
+        server.attach(srv, {
+          pingInterval: 24000
+        });
+        // @ts-ignore
+        expect(server.eio.opts.pingTimeout).to.eql(6000);
+        // @ts-ignore
+        expect(server.eio.opts.pingInterval).to.eql(24000);
+        server.close();
+      });
     });
 
     describe("port", () => {