1 | npm install express |
1 2 3 4 5 6 7 8 9 10 11 | const express = require( 'express' ); const app = express(); app.get( '/' , (req, res) => { res.send( 'Hello, World!' ); }); app.listen(3000, () => { console.log( 'Server is listening on port 3000' ); }); |
1 | node app.js |
1 2 3 | app.get( '/' , (req, res) => { res.send( 'Hello, World!' ); }); |
1 2 3 4 | app.get( '/users/:id' , (req, res) => { const userId = req.params.id; res.send( 'User ID: ' + userId); }); |
1 2 3 4 | app.get( '/users' , (req, res) => { const name = req.query.name; res.send( 'Hello, ' + name); }); |
1 2 3 4 5 6 7 8 | const bodyParser = require( 'body-parser' ); app.use(bodyParser.json()); app.post( '/users' , (req, res) => { const user = req.body; res.send( 'Hello, ' + user.name); }); |
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