socket io express

This article mainly introduces how to use socket. io in node express. If you need it, refer to the server. js code on the server. The Code is as follows: Var express = require ("express ");Var http = require ("http ");Var sio = require ("

Nodejs implements chat rooms based on socket. io Because the socket. io module is used for the web video Live project to be implemented later, I spent some time studying it and made some improvements by referring to the online code. I wrote a chat room code myself. I have to admit that the backend fact push capability

1.I/O Basic Knowledge 1.1What is a file descriptor? In a network, a socket object is a 1 file descriptor, and in a file, 1 file handles (that is, the files object) are 1 file descriptors. In fact, it can be understood as a "pointer" or "handle", pointing to 1 socket or file object, when the file or socket changes, the object corresponding to the document descript

This article mainly introduces how to use socket. io in node express. If you need it, refer to the server. js code on the server. The Code is as follows: Var express = require ("express ");Var http = require ("http ");Var sio = require ("

This article introduces socket in depth. i/O related information, which has previously been introduced to socket. i/O basic tutorials and applications. This article provides a more in-depth introduction to socket. i/O usage. For more information, see. This article introduces socket in depth. i/O related information, wh

) Chrome/12.0.742.124 Safari/534.30', accept: '*/*', 'accept-encoding': 'gzip,deflate,sdch', 'accept-language': 'zh-CN,zh;q=0.8', 'accept-charset': 'UTF-8,*;q=0.5', cookie: 'NAEIDE_console_hide=0; lzstat_uv=7551240663017376909|2341473@2717849; lzstat_ss=2468024318_3_1325124834_2717849; connect.sid=z5sT8ER8SIzyknF6HYnIEdWz.l6oFdxYR24fSV85JIpLcpBabQtqDPB%2BUPm1DR1wqAEU; NAE_c_location=BOTTOM; NAE_c_display=1' }, address: { address: '123.157.218.120', port: 60285 }, time:

Socket. io (3) Deep Learning Preface Socket. io provides real-time event-based two-way communication. This article introduces socket. io in depth. Let's take a look at the details below. Static files By default,

Use socket. io in node. js to create a namespace. If developers want to completely control the sending of messages and events in a specific application, they only need to use a default "/" namespace. however, if developers need to provide applications to other applications as third-party services, they need to define an independent namespace for a socket port use

This article mainly introduces node. socket. io broadcast messages. For more information, see socket. the io () server has a sockets attribute. The attribute value is all socket objects connected to the client. you can use the send method or emit method of this object to bro

This article mainly introduces node. socket. io broadcast messages. For more information, see socket. the io () server has a sockets attribute. The attribute value is all socket objects connected to the client. you can use the send method or emit method of this object to bro

The socket. Io official website uses express to implement the simplest im instant chat. Today we use Koa to implement it. ### Framework preparation Make sure that you have installed nodejs and NPM locally. Use Koa to require node version> 7.6 Create a folder (the official website name is chat-example) where you need it) Go to the project directory and create

Preface Today, users expect fast and dynamic applications that can be accessed through the web. This article series shows how to use reverse Ajax (reverse Ajax) technology to develop event-driven Web applications. Part 1 of the series describes reverse Ajax, polling, streaming, Comet, and long polling ). You have learned how comet uses HTTP long polling. This is the best way to reliably implement reverse Ajax, because all existing browsers provide support. Part 1 of the series illustrates how to

This article mainly introduces node. socket. js. i/O advanced usage skills. This article describes the configuration, room, event, authorization, and other content. For more information, see Socket in the previous blog. IO, I briefly introduced Socket. i/O basic usage and a simple chat room DEMO is created. This articl

This article mainly introduces how to use socket in node. for more information about how to create a namespace for I/O, see. If a developer wants to completely control the sending of messages and events in a specific application, you only need to use a default "/" namespace. however, if developers need to provide applications to other applications as third-party services, they need to define an independent namespace for a

Preface Before seeing a very humorous way to explain the windows of the socket IO model, to borrow this story to explain the Linux socket IO model; Lao Chen has a daughter who works in the field and can't often come back, Lao Chen and her through letter contact.Their letters will be delivered by the postman to the ma

://hi.baidu.com/yecell/blog/item/90106ddeaf59284a95ee3752.html this person's post, which can be very detailed description of each folder to store files. (4) run this project using node app. js to view the following running results: If the following problems occur:Error: cannot find module 'express '. Put the corresponding node_modules folder under test_express. node_modules has two app libraries: Express a

This article mainly introduces the socket. io entry instance in node. js, and introduces reverse ajax technologies such as websocket. For more information, see Introduction to websocket and other Reverse ajax Technologies In real-time web applications, a common method is reverse Ajax. Definition of reverse Ajax: Reverse Ajax (Reverse Ajax) is essentially a concept that can send data from the server to the

Introduction to websocket and other Reverse ajax Technologies In real-time web applications, a common method is reverse Ajax. Definition of reverse Ajax: Reverse Ajax (Reverse Ajax) is essentially a concept that can send data from the server to the client. In a standard HTTP Ajax request, data is sent to the server. Reverse Ajax can simulate an Ajax request in some specific ways, which will be discussed in this article, the server can send events (low-latency communication) to the client as quic

PrefaceHave seen in a very humorous way to explain the Windows Socket IO model, borrow this story, explain the Linux socket IO model;Lao Chen had a daughter who worked outside and could not come back often, and she contacted her by letter.Their letters will be delivered by the postman to the mailroom in front of their

Node. js and Socket. IO extend Django's real-time processing functions This article mainly introduces the use of Node. js and Socket. i/O extends Django's real-time processing function. The real-time asynchronous processing function is quite powerful. The example given in this article is to create a real-time chat room. For more information, see Today, our goal i