Pengenalan API & Konsep DasarApa itu API, jenis-jenis API (REST, SOAP, GraphQL, gRPC), komponen utama, dan format JSON.

HTTP Protocol & REST PrinciplesHTTP Methods, 6 REST Constraints, desain URL RESTful yang benar, dan struktur request/response.

Membuat REST API Pertama dengan PHPSetup project, .htaccess, helper Response class, front controller, dan routing sederhana.

CRUD API dengan Database MySQL/PostgreSQLSingleton PDO connection, SQL schema, dan UserController lengkap dengan pagination, search, sort.

Authentication & Authorization (JWT)Cara kerja JWT, JwtHelper class, Auth Controller (login + refresh token), dan AuthMiddleware.

API Security & Best PracticesInput validation & sanitization, rate limiting, security headers, CORS handling, deteksi SQL injection.

API Documentation (Swagger/OpenAPI)Menulis OpenAPI YAML spec, setup Swagger UI dengan PHP, dan cara mendokumentasikan endpoint.

Advanced: Caching, Versioning & Error HandlingStrategi versioning API, file-based caching, HTTP cache headers, dan global exception handler.

Consuming External APIReusable cURL HttpClient, integrasi OpenWeatherMap, Midtrans Payment Gateway, dan WhatsApp API.

Testing & Deployment APIPHPUnit unit testing, Guzzle integration testing, Docker Compose setup, dan production checklist.