Socket.IO

问题 I am attempting to consume a socket.io API using SocketIO4net however cannot seem to receive any messages. In the same VS2010 solution, I have a website with the following code: <script src="https://api.icbit.se/socket.io/socket.io.js"></script> <script src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js'></script> <script> $(document).ready(function () { var conn = io.connect('http://api-url'); conn.on('connect', function () { alert('Connected'); conn.emit('message', { op:

问题 I want to create parameterised streaming api like http://dev.twitter.com/pages/streaming_api_methods#statuses-filter The straightforward way I see is following: Create redis channel for messages (like twitter statuses). Each connected socket subscribes on this channel. Inside redis callback each sockets check if current message fits supplied parameters (parameters could be set as separate socket message) What you think guys? 回答1: You might want to look at nats 来源： https://stackoverflow.com

问题 I have an object of items in my variable this.rows . There is a real-time item coming from the server which is identical to one which is inside in this.rows object collection. How to I replace an item with a new values ? Here is an example: let rows = [ {id: 11, active: 'no'}, {id: 22, active: 'yes'}, {id: 33, active: 'no'}, {id: 44, active: 'no'} ] new_item = {id: 22, active:'yeah'}; rows.forEach(item => { if (item.id === new_item.id) { return new_item; } }); 回答1: Use the "findIndex" method

问题 I have a basic Socket.io implementation using NodeJS with Express server. (Basically the Get Started example on Socket.io web site) On desktop it connects/disconnects as expected. When you browse to the page the socket connects. Connection events are fired both on the client and server side. And she the user closes the browser, the socket disconnects. But on mobile the disconnect does not work as expected. When you browse to the page the socket connects, and events are fired. But the socket

问题 I have an application using node.js where multiples objects has a reference to socketio implementation. Every one of them opens an on-connection event in order to add their particular events to the socket connection, like this: this.io.on('connection', function(socket){ socket.on('subs', function(sub){ self.processSub(sub); }); // more events }); I have like 10 of these objects and the idea is to keep adding modules using this architecture. My question is: Does socket.io is designed for this

问题 how can i effecively display the status 'connected user' on my Friends list using mongoose ? am using socket io too (and i plan to switch to socket p2p) my friend list is an array of objects with uid , name , pic , socket as props and this array is stored in my profile document. i see a couple of options here but can't figure out what's best use the operator $in to query all the users connected to the app and match the result with my array of friends store every logged in user in a separate

问题 On the client, in the browser, I have this code: this.socket.on('initial', function(data) { console.log(data); }); On the server I have: socket.sockets.on('connection', function(client){ console.log('client connected'); }); My question is: how can I detect the URL where the request came from? For example if the first closure was running on "/posts/view/1", I want to be able to detect it inside of the second closure. 回答1: You could send this data back to the server. A little hand-wavey on the

问题 I want to let user's of my mini chat to create their rooms dynamically. For now i got const in flask server app: # Predefined rooms for chat ROOMS = ["Lounge", "news", "games", "coding", "food", "cars"] And user join/leave routes are in flask: @socketio.on('join') def on_join(data): username = data["username"] room = data["room"] join_room(room) # Notofication about new user joined room send({"msg": username + " has joined the " + room + " room."}, room=room) @socketio.on('leave') def on

问题 I'm trying to modularize my application and would like to emit different event to client on different js file. Sample code below shows that an event 'onlinestatus' will be fired from led.js. However I keep on getting the message 'Type Error: Cannot read property 'sockets' of undefined' whenever I try to emit the event from led.js. I suspect something could be wrong when I"m trying to export the io from /bin/www. /bin/www var server = http.createServer(app); var io = require('socket.io')

问题 import React, {useState, useEffect} from 'react'; import socketIO from 'socket.io-client'; import Container from 'react-bootstrap/Container'; function Sock() { const [textData, setTextData] = useState([]); useEffect(() => { const socket = socketIO('http://127.0.0.1:5009'); socket.on('chat message', (text) => { setTextData([ textData.push(text) ]); console.log(textData); }); },[]); return ( <Container> <h1>Socket</h1> {textData.map((text) => <li>{text}</li>)} </Container> ); } export default