Technology

API Testing

API Testing validates core business logic (e.g., `POST` for user creation) by executing requests, asserting HTTP status codes (like `200` or `404`), and confirming data integrity.

API Testing is a critical process: it verifies the application's business logic directly, bypassing the UI to ensure functionality, security, and performance. We execute specific test types: functional testing confirms a `GET /users/123` request returns the correct JSON schema, while load testing (e.g., simulating 1,000 requests/second) measures latency and throughput. This 'shift-left' approach catches critical integration bugs early, long before a customer hits a front-end error. Tools like Postman or SoapUI are essential for automating these checks within CI/CD pipelines, protecting application reliability and saving significant development time.