Day 3: Scaffolding the Trip Service
With the architecture designed in Day 1 and Go error patterns from Day 2, it’s time to build the first real service. The Trip Service is the heart of the platform — it owns the trip lifecycle. I started by scaffolding it using the generator tool: go run tools/create_service.go -name trip This gives us the Clean Architecture layout from Day 1: services/trip-service/ ├── cmd/ # Application entry point ├── internal/ │ ├── domain/ # Business domain models and interfaces │ │ └── trip.go │ ├── service/ # Business logic implementation │ │ └── service.go │ └── infrastructure/ # External dependency implementations │ ├── events/ # Event handling (RabbitMQ) │ ├── grpc/ # gRPC server handlers │ └── repository/ # Data persistence ├── pkg/ │ └── types/ # Shared types and models └── README.md Domain Layer The domain layer defines the core models and interfaces — no implementation details, no imports from infrastructure packages. ...