gRPC
6 ALREADY_EXISTS
The entity that a client attempted to create already exists. For example, a file or directory that the RPC was supposed to create already exists.
이 코드를 보게 되는 경우
A create operation failed because a resource with the same unique identifier or name already exists in the system.
해결 방법
Use a different identifier, or switch to an upsert/update operation if overwriting is acceptable. Check for existing resources before creating.
명세
RFC / 명세 보기 →크로스 프로토콜 동등 코드
비교
가이드
Choosing the Right HTTP Status Codes for REST APIs
API Design
gRPC Status Codes: A Practical Guide
API Design
Debugging Timeout Errors: 408 and 504
Debugging & Troubleshooting
How to Implement and Handle Rate Limiting (429)
API Design
API Versioning Strategies: URL, Header, and Query Param
API Design
Designing Consistent API Error Responses
API Design
API Keys vs OAuth vs JWT: Choosing the Right Auth Method
Security & Authentication