Programmer Think

Before HTML5, browsers and servers communicated through the HTTP protocol, so what's the use of introducing a WebSocket? Imagine a web page broadcasting a score of a football match live in text. Without a WebSocket, the client, or browser, usually updates the score dynamically in two ways: AJAX and long polling. What is the difference between ...

Recently, a project requirement is as follows: the software side will send a request to the server to obtain some information. Then process the acquired information and return the id of the information Method 1: the software side calls the interface and requests once a minute. The problem: if tens of thousands of people use the software at th ...

I Introduction to lallal is an open source live streaming media network transmission project, which is mainly composed of three parts:lalserver: streaming media forwarding server. It is similar to nginx RTMP module and other services, but supports more protocols and provides richer functions.demo: some small applications, such as push and pull ...

preface I have always wanted to be an unmanned car that can be monitored / operated remotely (deliver goods in the school to make money) (LE); Just because of my laziness, I didn't take action. But my bike was stolen the other day; Angrily, I wrote a real-time pedestrian recognition with opencv. Raspberry sent a camera to identify the guy ...

preface Compared with the single communication mode of Http, WebSocket can actively push messages from the server to the browser. This feature can help us complete some specific services such as order message push, IM real-time chat and so on. However, WebSocket itself does not provide direct support for "identity authentication", a ...

WebSocket notes Websocket: HTML5 WebSocket is designed to replace polling and long connection, so that the client browser has the instant messaging capability of desktop system under C/S framework, and realizes full duplex communication between browser and server. It is based on TCP. Although websocket transmits data through TCP like HTTP, ...

Socket.IO notes Instant messaging is based on TCP long connection. After the connection is established, the client / server can send data to the opposite end at any time for unlimited times, so as to realize the immediacy of server data transmission HTTP HTTP is a short link, which is designed to reduce the pressure on the server ...

When you encounter the demand of "background push", you can't avoid websocket. This time, the demand is a little special. The ip of the client is fixed. You need to distinguish the specific client according to the ip of the client. However, for future use, I also list another way to obtain the identity of the connected user - the url ...

WeChat cloud hosting is a cloud based solution based on cloud based native free operation and high availability services provided by WeChat team Tencent cloud team. It does not need servers, and can deploy small program / official account server in 1 minutes. PC access https://cloud.weixin.qq.com You can immediately start using wechat cloud hos ...

WeChat cloud hosting is a cloud based solution based on cloud based native free operation and high availability services provided by WeChat team Tencent cloud team. It does not need servers, and can deploy small program / official account server in 1 minutes. PC access https://cloud.weixin.qq.com You can immediately start using wechat cloud ho ...