Created
February 16, 2021 16:21
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Small node.js application with websocket
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| #!/usr/bin/env nodejs | |
| const http = require('http'); | |
| const WebSocket = require('ws'); | |
| const express = require('express'); | |
| const app = express(); | |
| const PORT = 8080; | |
| const WS_PORT = 8081; | |
| app.use(express.json()); | |
| // Create a WebSocket Server so clients can connect to it | |
| const wss = new WebSocket.Server({ port: WS_PORT }) | |
| wss.on('connection', function connection(ws) { | |
| }); | |
| // Now we create a simple HTTP server which receives a message | |
| // and forwards the message to the connected WebSocket clients | |
| app.get('/', (req, res) => { | |
| res.send('Hello'); | |
| }); | |
| app.post('/', (req, res) => { | |
| wss.clients.forEach(function each(client) { | |
| if (client.readyState === WebSocket.OPEN) { | |
| client.send(JSON.stringify(req.body)); | |
| } | |
| }); | |
| res.sendStatus(200); | |
| }); | |
| app.listen(PORT, () => { | |
| console.log('The server is running at port 8080!'); | |
| }); |
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