express Getting started with express Installation
Example
Express JS is the goto framework for developing Web Applications, APIs and almost any kind of Backend using Node.
To install express, all you have to do is run the npm command
npm install express --save
And you're done.
To create and run a new express server
create a file app.js and add this code
// require express
var express = require('express');
var app = express();
// when "/" is opened in url, this function will be called.
app.get('/', function (req, res) {
res.json({ code: 200, message: 'success' });
})
app.listen( 3000, function () {
console.log('Express server running at http://localhost:3000');
});
- In your terminal, run
node app.jsand - Open the url
http://localhost:3000in web browser to see your newly created express server.
It's also a good idea to install body-parser and express-session along with express as most of the time you will want to read the data sent in POST request and manage user sessions.
