adapters

Overview ¶

Package adapters provides application-specific logic.

Adapters contain code that exists for the application only. It is responsible for converting data in external formats to and from the internal domain representation. Adapters will often correspond to an application entrypoint or domain repository implementation, although this is not always the case.

Adapters that provide application entrypoints are responsible for executing usecases. A usecase can be re-used by multiple adapters if overlap is required. This is useful if there are APIs in different format, such as gRPC and REST. Similarly, it can be useful if supporting multiple versions of the same API where each version has small differences in the external format.

An adapter may build upon another adapter that also provides application dependent, but business independent code. Examples of this can be found in the common and usecasefacades adapter packages.