expressjsHow can I set up an Express.js server?
Setting up an Express.js server is a relatively straightforward process.
First, install the Express.js module using the node package manager (npm):
npm install express
Next, create a file for your server code such as server.js
and include the following code:
const express = require('express');
const app = express();
app.get('/', (req, res) => {
res.send('Hello World!');
});
app.listen(3000, () => console.log('Example app listening on port 3000!'));
This code will create an Express server on port 3000 and respond to requests with a simple "Hello World!" message.
When you're ready to run the server, use the following command:
node server.js
This will start the server and the following output should appear in the console:
Example app listening on port 3000!
The server is now running and ready to accept requests.
Helpful links
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