Action mapping
- 400: verify payload structure and required fields.
- 401/403: validate token and permission scopes.
- 404: recheck route and method pairing.
- 500+: inspect server logs and retry policy.
HTTP Status Code Guide
Use this guide to understand common API response status quickly.
Core categories
- 2xx: request success (200/201 are most common)
- 4xx: client-side request issue (400/401/403/404)
- 5xx: server-side processing issue (500/502/503)