REST-APIS5 MIN READ
Sort Error Classes for Retry Policy
Classify REST API responses into retry, repair, reauthenticate, throttle, or stop policies.
Place each API response in the policy bucket a robust client should use. Repair request Reauthenticate Resolve conflict Throttle then retry Transient retry with guard Do not retry 400 missing required email field 401 expired access token 409 subscription already active 429 with Retry-After: 60 503 from upstream gateway on idempotent GET 422 invalid currency code 403 caller lacks admin role 504 after POST without idempotency key
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