400 | bad_request | The syntax or parameters are invalid. |
401 | unauthorized | Authentication is missing or invalid. |
403 | forbidden | The authenticated principal lacks permission. |
404 | not_found | The requested resource does not exist. |
409 | conflict | The request conflicts with the current resource state. |
422 | validation_error | One or more values failed validation. |
429 | rate_limit_exceeded | The applicable request limit was exceeded. |
500 | internal_server_error | An unexpected server error occurred. |
502 | bad_gateway | An upstream dependency failed. |
503 | service_unavailable | The service is temporarily unavailable. |
504 | gateway_timeout | An upstream dependency timed out. |