Web Communication

Web communication is about how browsers, mobile apps, frontend apps, and backend servers talk to each other.

Most backend work happens here:

• A client sends a request.
• A server processes it.
• The server sends a response.
• Security, auth, cookies, CORS, and real-time communication sit around this flow.

What comes under Web Communication?

Web Communication
├── HTTP
├── HTTPS
├── REST API
├── WebSockets
├── CORS
├── Cookies vs Sessions vs JWT
└── Authentication vs Authorization

Start with HTTP, because HTTPS, REST, cookies, CORS, and WebSockets all make more sense after the request-response model is clear.