Intermediate · 4h 10m · lessons

APIs

How apps talk to each other — endpoints, methods, status codes, and JSON.

Start course

What you'll learn

  • ✦Explain what an API is, what REST means, and why APIs exist
  • ✦Choose the right HTTP method and understand safety and idempotency
  • ✦Read status codes and JSON responses correctly
  • ✦Build requests with path params, query params, headers, and bodies
  • ✦Authenticate requests with API keys and bearer tokens
  • ✦Design clean REST resources with good errors, pagination, and versioning
  • ✦Call APIs from code and handle webhooks, CORS, and failures
  • ✦Compare REST with GraphQL and apply caching, testing, and documentation

Syllabus

Module 1
REST foundations Free
Module 2
Working with APIs Locked
Module 3
Designing good APIs Locked
Module 4
Calling & integrating APIs Locked
Module 5
Beyond REST & reliability Locked