Learn to create and validate POST APIs in FastAPI with Pydantic models, handle various data types, test effectively, and debug with Requestly interceptor.

Learn how dummy APIs accelerate React development by providing static data for seamless UI building and testing without backend dependency.

Optimize GraphQL API performance with DataLoader by batching and caching data requests to reduce redundant queries and improve response times.

Understand CORS errors, their causes, and solutions. Learn how proper server setup and tools like Requestly can help fix cross-origin issues.

Learn how to create REST APIs with best practices, step-by-step guides, and efficient testing using the open-source Requestly API Client tool.