node.js: RESTful API

Hi people!!

Today I am going to show you how to build an API using RESTful.

1st step: Open the command line and enter the following commands:

mkdir RESTful
npm init
touch api.js
npm install express -S

This was the result of the necessary installation:

2nd step: Insert the following code

var express = require('express');
var app = express();
app.get('/',function(req, res) {
res.send("RESTful API - Example");
});
var users = [
{ id: 1, username: 'Afonso Antunes', email: 'afonso__antunes@outlook.com'},
{ id: 2, username: 'Bruno Teixeira', email: 'btt@uci.com'},
{ id: 3, username: 'Ruben Fernandes', email: 'rdf@sapo.pt'},
];
app.get('/listaUsers',function(req, res, next) {
res.send(users);
});
app.listen(8080, function() {
console.log("Servidor ativo no porto 8080");
});

3rd step: Run the following command

node api.js

And this was the result:

http://localhost:8080/listaUsers

I hope you enjoyed!!