express js server
const express = require('express');
const app = express();
const PORT = process.env.PORT || 3000;
app.get('/', (req, res) => {
res.send('<h1>Some HTML</h1>');
res.send('<p>Even more HTML</p>');
});
app.listen(PORT, () => console.log(`Server is listening on port ${PORT}`));node js express
// node js -> express -> basic example: static folder, 404 page
const express = require('express');
const path = require('path');
const PORT = process.env.PORT || 5000;
const app = express();
function error404(req, res) {
res.status(404);
if (req.accepts('html')) {
res.sendFile(path.join(__dirname, 'public/errors/404.html'));
return;
}
if (req.accepts('json')) {
res.send({
status: 404,
error: 'Not found'
});
return;
}
res.type('txt').send('404 - Not found');
}
app
.use(express.static(path.join(__dirname, 'public')))
.use(error404)
.listen(PORT, () => console.log(`Listening on ${ PORT }`));express in node js
$ npm init --y //add the package.json file
$ npm install express --no-save
const express = require('express')
const app = express()
//cors to fix cors origin, body-parser to fix the post value on the server
const cors = require('cors');
const bodyParser = require('body-parser');
app.use(cors());
app.use(bodyParser.json());
const port = 3000
app.get('/', (req, res) => {
res.send('Hello World!')
})
router.get('/admin/:id?', (req, res) => {
let id = req.params.id;
}
app.post('/admin', (req, res) => {
const user = req.body.user;
res.send('Hello World!', user)
})
app.listen(port, () => {
console.log(`Example app listening at http://localhost:${port}`)
})Copyright © 2021 Codeinu
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