{"id":3058,"date":"2026-08-07T00:38:13","date_gmt":"2026-08-06T17:38:13","guid":{"rendered":"https:\/\/sumberlaba.com\/index.php\/2026\/08\/07\/how-to-build-a-rest-api-with-node-js-and-express\/"},"modified":"2026-08-07T00:38:13","modified_gmt":"2026-08-06T17:38:13","slug":"how-to-build-a-rest-api-with-node-js-and-express","status":"publish","type":"post","link":"https:\/\/sumberlaba.com\/index.php\/2026\/08\/07\/how-to-build-a-rest-api-with-node-js-and-express\/","title":{"rendered":"How to Build a REST API with Node.js and Express"},"content":{"rendered":"<h1>How to Build a REST API with Node.js and Express<\/h1>\n<p>Node.js is an excellent choice for building fast, scalable APIs, and Express makes the process incredibly straightforward. This tutorial walks through creating a simple REST API from scratch, covering setup, routes, and testing.<\/p>\n<p>Make sure you have Node.js and npm installed. You can test the endpoints using a browser, Postman, or curl.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/via.placeholder.com\/800x600\/4a90d9\/ffffff?text=how%20to%20build%20an%20api%20with%20nodejs\" alt=\"Article illustration\" style=\"display:block;margin:20px auto;max-width:100%;height:auto;border-radius:8px;\" \/><\/p>\n<h2>1. Initialize the Project<\/h2>\n<p>Create a project folder and run <code>npm init -y<\/code> to generate a package.json file. Then install Express with <code>npm i express<\/code>.<\/p>\n<h2>2. Create the Server<\/h2>\n<p>Create an <code>index.js<\/code> file and add the following code to start a server on port 3000.<\/p>\n<pre><code>const express = require('express');\nconst app = express();\napp.use(express.json());\napp.listen(3000, () => console.log('API running on port 3000'));<\/code><\/pre>\n<h2>3. Add API Routes<\/h2>\n<p>Define endpoints using HTTP methods. Here&#8217;s a simple GET route that returns JSON.<\/p>\n<pre><code>app.get('\/api', (req, res) => {\n  res.json({ message: 'Hello World' });\n});<\/code><\/pre>\n<p>Use <code>app.post()<\/code>, <code>app.put()<\/code>, and <code>app.delete()<\/code> for other operations.<\/p>\n<h2>4. Test the API<\/h2>\n<p>Run <code>node index.js<\/code> and visit <code>http:\/\/localhost:3000\/api<\/code>. You should see the JSON response. Use Postman to send POST, PUT, and DELETE requests to test further.<\/p>\n<p>There you have it \u2014 a fully functional API built with Node.js and Express. From here, you can expand by adding a database, implementing authentication, and organizing routes with Express Router to build production-ready services.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>How to Build a REST API with Node.js and Express Node.js is an excellent choice for building fast, scalable APIs, and Express makes the process incredibly straightforward. This tutorial walks through creating a simple REST API from scratch, covering setup, routes, and testing. Make sure you have Node.js and npm installed. You can test the &hellip; <\/p>\n","protected":false},"author":2716,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-3058","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/posts\/3058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/users\/2716"}],"replies":[{"embeddable":true,"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/comments?post=3058"}],"version-history":[{"count":0,"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/posts\/3058\/revisions"}],"wp:attachment":[{"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/media?parent=3058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/categories?post=3058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumberlaba.com\/index.php\/wp-json\/wp\/v2\/tags?post=3058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}