Complete guide for calling gateway-backed services: ✅ Quick start with X-Service routing ✅ Authentication & token generation (Authentik OAuth2) ✅ Service map (SQS, Memory, S3, IAM, Workflow) ✅ Service-specific guides with curl examples ✅ SQS: Send/receive/acknowledge messages ✅ S3/MinIO: Upload/download/list objects ✅ IAM: User & role management ✅ Temporal: gRPC-only, SDK usage ✅ Error handling (RFC 9457) ✅ Request/response examples ✅ Integration testing ✅ Debugging guide Covers: • Bearer token flows • X-Service header routing • Service-specific auth requirements • Status codes & error mapping • Long-polling for SQS • Rate limits & quotas Ready for production use.
