Introduction to HTTP protocol (30 min)
- Overview of HTTP: Start with a brief history of the HTTP protocol and its significance in the web and IoT. Explain how HTTP works as a request-response protocol between clients and servers.
- HTTP Methods: Dive into the different HTTP methods (GET, POST, PUT, DELETE, etc.), explaining their purposes and how they are used in IoT communications to read, create, update, and delete resources.
- HTTP Status Codes: Introduce HTTP status codes and their meanings. Highlight common ones like 200 OK, 404 Not Found, and 500 Internal Server Error, explaining how they inform the client about the outcome of their request.
- Headers and Payloads: Discuss the role of HTTP headers and payloads. Explain how headers can control cache, define content type, and manage authentication, while the payload carries the actual data.
- Security: Briefly touch on the importance of securing HTTP communications, introducing concepts like HTTPS, SSL/TLS, and basic authentication mechanisms.