Socket.IO

问题 I want my React component to listen to events from socket.io. My code works if I have the HTML files include: <script src="socket.io/socket.io.js"></script> and then the component's constructor() has: this.socket = io(); // eslint-disable-line no-undef The HTML file retrieves the proper socket.io client code from my Express server, and everything's fine. But this feels so cheesy. I hate to rely on the global window name space to find the io() function. What's the best practice for letting a

问题 I want my React component to listen to events from socket.io. My code works if I have the HTML files include: <script src="socket.io/socket.io.js"></script> and then the component's constructor() has: this.socket = io(); // eslint-disable-line no-undef The HTML file retrieves the proper socket.io client code from my Express server, and everything's fine. But this feels so cheesy. I hate to rely on the global window name space to find the io() function. What's the best practice for letting a

问题 I am using Socket.IO to have a client webpage fetch data dynamically from my Node.JS server. On the server-side, I am forwarding the request to a Python backend using the zeromq socket library (REQ/REP structure, see the rrclient.js example from zguide). However, since my server is acting as the socket.io server, I have to wrap my response as follows in order to send it back to the specific client: socket.on('app_request',function(appRequest){ //route this request to the backend. var results

问题 If socket is disconnected from the server, Will all the subscription of that socket will be removed from the chat-room by default(by sails) or we have to remove it manually(by code) 回答1: Base of socket.io source code this.leaveAll() will run before fire disconnect event. So no need to leave from rooms manually Socket.prototype.onclose = function(reason){ if (!this.connected) return this; debug('closing socket - reason %s', reason); this.emit('disconnecting', reason); this.leaveAll(); // leave

问题 How do I get other user's socket.id? Since socket.id is keep changing, whenever the browser refresh or disconnect then connect again. For example this line of code will solve my problem socket.broadcast.to(id).emit('my message', msg); But the question is How do i get that id? Let say Jack wants to send a message to Jonah Jack would use the above code to send the message, but how to get Jonah's socket id? Just for the record, I already implemented socket.io and passport library so that I could

问题 I am using angular-socket-io but needed a way to authenticate in the app first before starting the socket.io interface. I followed this method. But I need to use event forwarding in the factory as shown here like this: socket.forward("event"); How can I add forwarding in my factory? .factory('socket', function($rootScope, $timeout, socketFactory, $q, $log) { // create a promise instance var socket = $q.defer(); // listen for the authenticated event emitted on the rootScope of // the Angular

问题 I'm using React and Socket.io but I have an issue. Each character I write in the input field, a new socket id is created and I do not want that to happen. When I remove the setUsername(e.target.value) in the onChange method no socket are created. Here is my code: Server Side: const express = require('express'), app = express(), http = require('http').createServer(app), PORT = 5000, io = require('socket.io')(http); io.on('connection', (socket) => { console.log('New client with id: ' + socket

问题 i've read the answers here about my problem in node.js, but my problem persists. With socket.io in the server, everything looks ok, but in client side, chrome says: Failed to load resource: the server responded with a status of 404 (Not Found) localhost:3382/socket.io/socket.io.js var express = require("express"); var http = require("http"); var _io = require("socket.io"); var PORT = 3382; var app = express(); app.listen(PORT, function(){ console.log("Listening from "+PORT); }); var server =

问题 On the homepage of socket.io, it does not say anything about relating to scalability issues. Does anyone have any idea as how many concurrent connections it can process at a time? I want to deploy socket.io in my project for large scale comet processing. For instance, it states that nodejs can easily handle as many as 100K concurrent connections. Will socket.io be able to process as many request as those at a time? 回答1: There are many variables that affect performance and define limits to

问题 (javascript) Iv got an error in running a socket.io example from github https://github.com/LearnBoost/socket.io.git when i run -> node app.js it says. Error: require.paths is removed. Use node_modules folders, or the NODE_PATH environment variable instead. can someone tell me whats wrong? this error always comes out in every socket.io examples I've tried. 回答1: I hit this issue while working with a cloud foundry sample. The offending line they told you to include was: require.paths.unshift('.