Socket.IO

问题 We are writing an Application- which need a dummy user as a socket.io client with the user ,which will act as a dummy user , to send and recieve messages . Each user will have the dummy client that should be able to send message to client(User). I need help for implementing this. This is my server connection handler .I want to create a socket.io client here , as new client is connected on server .Can i develope it if yes then how ? self.socket.on('connection', function(client){ //here i want

问题 Actually I'm trying to show posts in recyclerview by getting a set of posts from server (mongodb) and it's working fine. Then I'm trying to load post's username by the help of post_ owner_mail .You might say why do I load these things position wise instead of bulk wise but as there will be posts with different ownerMail so it's not possible to prefetch their username. For that purpose I'm using a separate class for loading data from server and showing in text view . But now the problem is the

问题 I am using Socket.io 2.0.4 and React.js (CRA) Background: In my server code (server.js) once someone sucessfully joins a room I want to emit an event that tells all clients in that room that someone joined. Problem: I don't get an error but nothing get's transmitted to my client if I try to use .to(room) or .in(room) in conjuction with .emit ... but .emit will work on it's own. What Works: I am successfully able to implement to the socket.join() code and in the callback I console.log the IDs

问题 I'm trying to use io.sockets.on inside a route in a Node.js and Express app. I have been following what is said here: https://stackoverflow.com/a/31277123/8271839 I can successfully send io.sockets.emit events, but I cannot receive events with io.sockets.on. Here is my code: index.js: const cors = require('cors'); const express = require('express'); const app = express(); const server = require('http').Server(app); const io = require('socket.io')(server); const taskRequest = require('./routes

问题 we are looking at socket io implementation for a chat application. Finding acknowledgement support to handle missing messages while broadcast we are looking at acknowledgement support. as per documentation socket io does not have support for callbacks in broadcast / rooms. e.g. in "Room 1" we send broadcast message to all sockets within that room. how we check without call back that some users/sockets missed the message. and how we will handle that in system. below code does not work. io

问题 Below is the code for socket. package com.shankar.rest; import java.io.IOException; import javax.websocket.OnClose; import javax.websocket.OnMessage; import javax.websocket.OnOpen; import javax.websocket.Session; import javax.websocket.server.ServerEndpoint; /** * @ServerEndpoint gives the relative name for the end point * This will be accessed via ws://localhost:8080/com.shankar.rest/echo * Where "localhost" is the address of the host, * "com.shankar.rest" is the name of the package * and

问题 What it says at the top - for a given client, can I see what rooms they have joined? Thanks 回答1: Given a socket you can get all the rooms it has joined via io.sockets.manager.roomClients[socket.id] . See here. 来源： https://stackoverflow.com/questions/16001850/can-i-get-a-list-of-the-rooms-a-client-is-connected-to-in-socket-io

问题 Everything was working fine before adding webpack. Here's my current config (below) . Inside login.js, there's a window.onload function, then shortly after there's a socket.on function, which is now breaking the program. It seems as if "socket" is not globally available to the other files after adding webpack. Here's the error code I receive in console when running my app: "login.js:1 Uncaught TypeError: socket.on is not a function at window.onload (login.js:1)" Any help or insight would be

问题 After struggling with socket.io connection authentication (here and here) and thanks to @sgress454, I realized how to get this to work and I am sending the authentication/authorization token as part of the query in the connection (see below). Upon authentication failure (invalid/expired token or in-active user), I return the callback with false parameter to indicate the connection is rejected. On the client side though, I am not sure how I should handled it and it seems the socket is trying

问题 After struggling with socket.io connection authentication (here and here) and thanks to @sgress454, I realized how to get this to work and I am sending the authentication/authorization token as part of the query in the connection (see below). Upon authentication failure (invalid/expired token or in-active user), I return the callback with false parameter to indicate the connection is rejected. On the client side though, I am not sure how I should handled it and it seems the socket is trying