» Node.js: Build a REST API with Express » 1. Introduction » 1.1 Preparation

Preparation

Install Node.js

See How to install Node.js?.

Note: This project uses node v20.11.0 and npmv 10.2.4.

Pick an editor

Pick your favorite editor or use Visual Studio Code.

Learn JavaScript basics

If you're not familiar with JavaScript, you may try this tutorial: "Quick Introduction to JavaScript."

What is REST api

See What is REST api?.

Express web framework

Express is a fast, unopinionated, minimalist web framework for Node.js.

Here's a basic usage example:

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})