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API Design Safety Guard

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API Development

Enforces safe REST API design patterns and prevents data-corrupting failures in downstream document generation.

This skill acts as a robust architectural guardrail for backend development, ensuring REST API responses are semantically correct, consistently structured, and protected against common programming pitfalls. It specifically addresses Java generic method overloading issues, standardizes success/error response formats, and mandates strict pre-validation for generated files like Excel, CSV, or PDF to prevent 'silent failures' where critical data is missing but the process appears successful. By integrating these best practices, developers can minimize bugs in frontend-backend communication and ensure data integrity for third-party consumers.

Key Features

01Distinguishes between HTTP transport status codes and internal business logic codes
02Enforces uniform null vs. empty collection handling to simplify frontend parsing
03774 GitHub stars
04Prevents Java generic method overloading ambiguity for String-based API responses
05Mandates multi-layer validation for downstream assets to prevent silent data loss in exports
06Standardizes REST response schemas using consistent code, message, and data fields

Use Cases

01Designing or refactoring a standardized REST API response structure in frameworks like Spring Boot, FastAPI, or Go
02Implementing critical export-to-file features (Excel/CSV) that must meet third-party import requirements
03Configuring global exception handlers to cleanly separate business logic errors from system-level failures