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Technical Blog
Articles

In-depth articles explaining stateful mock APIs, WebSockets, payments, and frontend resilience.

Read Articles
PreviousPlatform Comparisons
NextInteractive Studio
Real-World Architecture

Built with Playground API

Discover how frontend engineers, QA teams, and educators use Playground API to build production-grade web applications, reactive state stores, and automated test pipelines with zero backend infrastructure.

Official Featured Application

Playground React E-Commerce Store & Studio

A complete, production-ready React 18 e-commerce application featuring dynamic catalog management, interactive cart drawer, simulated JWT authentication, and isolated session sandbox mutations.

Try in API StudioView Source on GitHub

Dynamic Products

Uses /custom/products to let users create, edit, and delete products with persistent session overlays.

Cart & Checkout

Reactive cart drawer with real-time tax calculation, coupon codes, and simulated order submission.

JWT Auth Flow

Full login loop with /auth/login and protected user profile hydration.

Skeleton Loaders

Tests skeleton loaders seamlessly with artificial latency using ?_delay=1200.

How the React Demo Integrates with Playground API:
playground_api_react_demo/src/hooks/useProducts.js
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// Example from playground_api_react_demo
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import { useState, useEffect } from 'react';
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export function useProductCatalog() {
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const [products, setProducts] = useState([]);
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const [loading, setLoading] = useState(true);
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// 1. Fetch dynamic products with persistent sandbox overlay
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const fetchProducts = async () => {
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setLoading(true);
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try {
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const res = await fetch('https://playground.nileslabs.com/api/v1/custom/products?_sort=createdAt&_order=desc', {
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credentials: 'include',
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});
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const data = await res.json();
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setProducts(data.data || []);
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} finally {
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setLoading(false);
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}
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};
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// 2. Create a new custom product (Persists in user session overlay!)
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const addProduct = async (productData) => {
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const res = await fetch('https://playground.nileslabs.com/api/v1/custom/products', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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credentials: 'include',
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body: JSON.stringify(productData),
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});
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if (res.ok) {
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await fetchProducts(); // Refresh list to see the newly created item
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}
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};
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useEffect(() => {
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fetchProducts();
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}, []);
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return { products, loading, addProduct };
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}

Architecture Blueprints & Case Studies

Explore architectural patterns demonstrating how Playground API satisfies complex frontend scenarios:

Next.js 15 Server-Side Blog

Full-stack server-side rendered blog with Server Actions, optimistic cache invalidation, and zero database setup.

POST /api/v1/posts → revalidatePath('/')

Live Chat with Presence

WebSocket chat room with automated presence bot, typing indicator events, and room-scoped message broadcasting.

ws://.../ws → { type: 'chat', room: 'lobby' }

Parallel CI/CD Pipelines

Export sandbox snapshots and isolate parallel GitHub Actions workers with X-Playground-Identity.

DELETE /api/v1/session/reset

Real-Time WebSocket Integration

Playground API provides full bidirectional WebSockets. Connect your client and immediately receive automated responses from our live echo and presence bot:

realtime-chat-client.js
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// Real-Time WebSocket Client Integration
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const wsUrl = 'wss://playground.nileslabs.com/api/v1/ws';
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const socket = new WebSocket(wsUrl);
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socket.onopen = () => {
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console.log('Connected to Playground Real-Time Hub');
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// Join a shared chat room
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socket.send(JSON.stringify({
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type: 'join',
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room: 'general-lobby',
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username: 'FrontendDev',
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}));
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};
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socket.onmessage = (event) => {
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const message = JSON.parse(event.data);
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console.log('Incoming real-time event:', message);
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};

Submit Your Project

Have you built a React, Vue, Svelte, or Mobile tutorial or application using Playground API? Open a pull request or issue on GitHub to be featured here!

Submit Project on GitHub