socket.io npm
// npm i socket.io
const http = require('http')
const express = require('express')
const socketio = require('socket.io')
const app = express()
const server = http.createServer(app)
const io = socketio(server)
const port = process.env.PORT || 3000
server.listen(port, () => {
console.log(`Server is up on port ${port}!`)
})npm socket io
// with npm
npm install socket.io
// with yarn
yarn add socket.iohow to install socket.io to node js
$ npm install socket.iohow to run socket.io server
const express = require("express");
const http = require("http");
const socketIo = require("socket.io");
const port = process.env.PORT || 8001;
const index = require("./routes/index");
const app = express();
app.use(index);
const server = http.createServer(app);
const io = socketIo(server); // < Interesting!
const getApiAndEmit = "TODO";socket..io
<script src="https://cdn.socket.io/socket.io-3.0.1.min.js"></script>Copyright © 2021 Codeinu
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