| Notification Center Service | OTP delivery (ZNS / SMS) and booking notification endpoints (/otp, /bookingnoti, /request_booking) served by the notification-center service. |
| Log Service | Structured log ingestion endpoints (/v1/logs, /v1/logs/mobile) that forward client logs to Loki via the api-gateway. |
| Store Service — Payment Flow | The checkout call sequence — cart reset, checkout session, corporate payment toggle, booking note, and pay_with_* execution. |
Store Service — pay_with_corporate | The corporate payment call — what it needs from the session, and the errors specific to it. |
| Store Service — Middleware Errors | Authentication, authorization, delegation, and OTP errors raised before a request reaches the store service. |
| Store Service — Trip-Related Errors | Budget, guest, and traveller validation failures on trip bookings, split by whether the trip has a proposal. |
| Flight Service — User Request Flow | The status flow for flight change and cancellation requests — admin quote as a list of fees, requester confirm or decline with the company's share of each fee, the requester's wallet payment, approval, and applying each fee to the passenger. |
| Flight Service — APIs | Requester: user_requests, confirm_user_request, begin_personal_payment, decline_user_request, cancel_user_request. Admin: admin_user_requests, process_user_request, add_passenger_fee. Both: booking_request_progress. |
| Flight Service — Middleware Errors | UNAUTHENTICATED and UNAUTHORIZED, raised before a request reaches a flight-service operation. |
| Flight Service — User Request Errors | Every user request error code, which call returns it, and when. |
| Card-core | Thẻ, merchant, điều xe, trợ lý MCP, xác thực và vận hành của card-core — tài liệu chép từ repo card-core. |