Add port argument

index.d.ts

@@ -4,11 +4,13 @@ type FeatherSocketCallback =
   (io: any) => void;
 
 type FeathersSockeOptions =
+  number |
   SocketIO.ServerOptions |
   FeatherSocketCallback;
 
 
 declare function feathersSocketIO(
+    port?: FeathersSockeOptions,
     options?: FeathersSockeOptions,
     config?: FeathersSockeOptions
   ): () => void;

src/index.js

@@ -5,8 +5,14 @@ import socket from 'feathers-socket-commons';
 
 const debug = makeDebug('feathers-socketio');
 
-export default function (options, config) {
-  if (typeof options === 'function') {
+export default function (port, options, config) {
+  if (typeof port !== 'number') {
+    config = options;
+    options = port;
+    port = null;
+  }
+
+  if (typeof options !== 'object') {
     config = options;
     options = {};
   }
@@ -21,7 +27,7 @@ export default function (options, config) {
         let io = this.io;
 
         if (!io) {
-          io = this.io = socketio.listen(server, options);
+          io = this.io = socketio.listen(port || server, options);
 
           io.use(function (socket, next) {
             socket.feathers = { provider: 'socketio' };

test/arguments.test.js

@@ -0,0 +1,109 @@
+import feathers from 'feathers';
+import io from 'socket.io-client';
+import socketio from '../src';
+
+const createUniquePort = UniquePortCreator(3000);
+
+describe('Arguments', function () {
+  const options = { path: '/ws/' };
+  const callback = (io) => io.on('connection', (socket) => {
+    socket.emit('event');
+  });
+
+  describe('No arguments', function () {
+    const port = createUniquePort();
+    const app = feathers().configure(socketio());
+    const socket = io('http://localhost:' + port);
+
+    it('should be connected', (done) => {
+      serverListen(app, port, () => {
+        socket.on('connect', done);
+      });
+    });
+  });
+
+  describe('Pass options', function () {
+    const port = createUniquePort();
+    const app = feathers().configure(socketio(options));
+    const socket = io('http://localhost:' + port, options);
+
+    it('should be connected', (done) => {
+      serverListen(app, port, () => {
+        socket.on('connect', done);
+      });
+    });
+  });
+
+  describe('Pass callback', function () {
+    const port = createUniquePort();
+    const app = feathers().configure(socketio(callback));
+    const socket = io('http://localhost:' + port);
+
+    it('should be connected', (done) => {
+      serverListen(app, port, () => {
+        socket.once('event', done);
+      });
+    });
+  });
+
+  describe('Pass options and callback', function () {
+    const port = createUniquePort();
+    const app = feathers().configure(socketio(options, callback));
+    const socket = io('http://localhost:' + port, options);
+
+    it('should be connected', (done) => {
+      serverListen(app, port, () => {
+        socket.once('event', done);
+      });
+    });
+  });
+
+  describe('Pass port and options', function () {
+    const socketPort = createUniquePort();
+    const appPort = createUniquePort();
+    const app = feathers().configure(socketio(socketPort, options));
+    const socket = io('http://localhost:' + socketPort, options);
+
+    it('should be connected', (done) => {
+      serverListen(app, appPort, () => {
+        socket.on('connect', done);
+      });
+    });
+  });
+
+  describe('Pass port and callback', function () {
+    const socketPort = createUniquePort();
+    const appPort = createUniquePort();
+    const app = feathers().configure(socketio(socketPort, callback));
+    const socket = io('http://localhost:' + socketPort);
+
+    it('should be connected', (done) => {
+      serverListen(app, appPort, () => {
+        socket.once('event', done);
+      });
+    });
+  });
+
+  describe('Pass port, options and callback', function () {
+    const socketPort = createUniquePort();
+    const appPort = createUniquePort();
+    const app = feathers().configure(socketio(socketPort, options, callback));
+    const socket = io('http://localhost:' + socketPort, options);
+
+    it('should be connected', (done) => {
+      serverListen(app, appPort, () => {
+        socket.once('event', done);
+      });
+    });
+  });
+});
+
+function UniquePortCreator (from) {
+  return () => from++;
+}
+
+function serverListen (app, port, cb) {
+  let server = app.listen(port);
+  app.setup(server);
+  server.on('listening', cb);
+}