How to use websocket in nodejs (with code)

This time I will show you how to use websocket in nodejs (with code). What are the precautions for using websocket in nodejs. The following is a practical case, let's take a look.

Installation：

npm install ws

Server (nodejs):

var WebSocketServer = require('ws').Server,
wss = new WebSocketServer({ port: 8080 });
wss.on('connection', function (ws) {
console.log('client connected');
ws.on('message', function (message) {
  console.log(message);
});
});

Client:

<script>
var ws = new WebSocket("ws://localhost:8080");
ws.onopen = function (e) {
  console.log('Connection to server opened');
  sendMessage();
}
function sendMessage() {
  ws.send('hello');
}
</script>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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The above is the detailed content of How to use websocket in nodejs (with code). For more information, please follow other related articles on the PHP Chinese website!