Software Architecture Design

Concepts

• Composite root - wires up the dependency injection container at startup

Which architecture should I pick?

Small Projects

Characteristics

• Simple CRUD with simple business logic that does not grow complex.
• Proof of concept or minimum viable product
• Infrastructure components like cache, database, storage and more is stable and do not change.

Software Architecture

Layered Architecture

Medium Projects

Characteristics

• Simple CRUD with simple business logic that does not grow complex.
• Proof of concept or minimum viable product
• Infrastructure components like cache, database, storage and more is stable and do not change.

Software Architecture

Medium-Large Projects

Characteristics

Software Architecture

Logging

API layer logs:

request received correlation ID / trace ID authenticated user / tenant response status unhandled exception

Application layer logs:

use case started important decisions or branches use case completed business failure that matters operationally

Domain layer logs:

generally no logging maybe only in rare cases if your domain services are acting like transaction scripts and you really need observability even then, keep it minimal

Infrastructure layer logs:

external calls failed DB retries / timeouts queue publish failures HTTP client failures adapter-specific technical details