socket io connect

Basic Application of socket. io tutorial (2) socket. io tutorial Preface Socket. IO supports timely, bidirectional, and event-based communication. It can work on every platform, every browser, and every device, with the same relia

Use Socket. io to push messages in real time, and socket. io to push messages in real time. Project Background There is a social network module in a recently written project. You need to implement this function: when a user is liked, commented, or followed, the server needs to push a message to the user in real time. T

Node. js Web application framework, which is often used when building HTTP servers. Therefore, it is explained directly using Socket. IO and express as examples. Copy codeThe Code is as follows:Var express = require ('express '), App = express (), Server = require ('http'). createServer (app), Io = require ('socket.

Introduction Java NiO, introduced from JDK1.4, provides a completely different way of working with standard IO. The NIO package (java.nio.*) introduces four key abstract data types that work together to address some of the problems in traditional I/O classes. 1, Buffer: It is a linear table structure that contains data and is used for reading and writing. It also provides a special class for I/O operations for memory-mapped files. 2, Charset: I

use the io. connect () method to connect to the server socket. io server. This method returns a client socket port object that establishes a connection with the server. When receiving a message sent from the server, the message e

('some event '): Code githubCreate a folder chatapp-demoChatapp-demo/package. json { "name": "chatapp-demo", "version": "1.0.0", "description": "multi room chat app demo, powered by socket.io", "main": "app.js", "dependencies": { "express": "^4.13.3", "hbs": "^3.1.0", "path": "^0.11.14", "socket.io": "^1.3.6" }, "devDependencies": {}, "author": "wuyanxin", "license": "ISC"} Run npm install Server code Added the chatapp-demo/app. js file. Var express = require ('express '); var path = requir

, directly submit the command + user buffer to the kernel driver, and then return immediately. At this time, the user thread can continue to run and do other things. When you want to know the command completion status, you can use getqueuedcompletionstatus to obtain the completed request and data. Therefore, you can submit a large number of IO requests first, and then process and return them slowly. The reason why iocp is more efficient than epoll is

allowRequest function has two parameters. The first parameter is the received handshake packet (http.request) Object as the judgment basis, success), err is the error object, success is boolean, false indicates that connection establishment is blocked Front-end request with token let socket = io('http://localhost:3000?token=abc') socket.on('connect', () => { co

method will not work A prompt is displayed when you access the service again after it is disabled.{"code":0,"message":"Transport unknown"} Modify static file path The path of socket. io. js can be changed. The default path is/socket. io. Parameter passing during instantiation let