Awesome — let's roll into Part 2: Code Examples 💻

💻 All the APIs You Should Know (Part 2: Real Code Examples in Node.js + React)

In this section, we’re not just talking theory — we're going hands-on.

You’ll see how to:

• Build each API type in Node.js (Express/Apollo/ws)
• Connect to it from React (or Angular if noted)
• Understand where each API shines through code

If you missed Part 1 (theory + concepts), go back here — but if you're ready to get your hands dirty, let’s start!

🧱 REST API – Node + React

🛠 Backend (Node.js + Express)

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🖥 Frontend (React)

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🔮 GraphQL – Node + React

🛠 Backend (Apollo Server)

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🖥 Frontend (React + Apollo Client)

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🔌 WebSockets – Node + React

🛠 Backend (WebSocket Server)

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🖥 Frontend (React)

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📬 Webhooks – Node.js

🛠 Webhook Listener (Server)

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🧪 To Test It:

You can POST to it manually or use Webhook.site or tools like curl or Postman:

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📡 Server-Sent Events (SSE)

🛠 Node.js SSE Server

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🖥 React SSE Client

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💧 SOAP – Node.js (With soap Package)

SOAP is XML-based and contract-driven. We'll use a mock SOAP service with Node.js using the soap package.

🧪 This is rare in new projects but shows up in legacy & enterprise integrations.

🛠 SOAP Server (Node.js)

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🎥 WebRTC – Browser Only (P2P)

WebRTC works peer-to-peer in the browser but needs signaling (like WebSocket) to exchange info first.

Here’s a simple demo setup:

🖥 Frontend (React or Vanilla JS)

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⚙️ gRPC – Node.js (Protocol Buffers)

We'll use @grpc/grpc-js and @grpc/proto-loader.

📄 hello.proto

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🛠 Server

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🖥 Client

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📨 Message Queue – RabbitMQ with Node.js

🛠 Producer (Sender)

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🛠 Consumer (Worker)

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🔁 Streaming API – Kafka-Style (Simulated)

Kafka is too heavy to set up here, so we’ll simulate a stream using a basic EventEmitter to represent continuous data streaming.

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🔐 OAuth2 + JWT Authentication

🛠 Backend: JWT Auth with Express

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✅ we now have working examples code :

⚡ Coming Up: Part 3 — Final Recommendations, Architecture Tips & Cheatsheets

Next up, I’ll wrap this series with:

• 🔧 When to use each API (real-world context)
• ⚔️ REST vs GraphQL vs gRPC vs Webhooks — when to choose what
• 📋 Full cheatsheets and decision trees
• 📦 Extra tools and packages to use per API type