Domain

Emeraude Framework is designed with Clean Architecture (and all onion-based architectures) in mind. Of course, it fits not only that architecture but all others. In the current documentation we are not going to explain how to fit Emeraude with every specific architecture because the list is huge. So the focus will be only in the Clean Architecture, but maybe it will be enough for you to fit the framework with different architecture.

As you know the Clean Architecture is onion-based with core defined by the domain of the application. The domain is responsible to contain the whole business definition without direct dependencies to any frameworks. As you read in the architecture section - Emeraude is designed to inverse the dependency flow of your application architecture in order to allow access of your application source to the framework.

In the domain Emeraude needs to identify what are the entities of your business logic so that's why you need to implement the framework contracts or inherit the framework abstractions in order to inform Emeraude what are the units of your application.

ASSEMBLY

Emeraude.Contracts

The list of predefined contracts is small because we are trying to make your domain from our side clean as possible:

  • IEntity - contract that represent a domain entity. It contains Id which is the identifier of the entity.
  • IAuditableEntity - contract, that implements IEntity and contains auditable information about the entity: CreatedOn (string), UpdatedOn (string), CreatedBy (DateTimeOffset) UpdatedBy (DateTimeOffset)
  • IUser - contract, that implements IEntity and represent a user with the following properties: Name (string), PhoneNumber (string), Email (string), AvatarUrl (string), RegistrationDate (DateTimeOffset)

As you see the contracts are simple as possible and their target goal is to make initial definition for your domain. The framework provides an abstraction set of two of these contracts in order to speed up your development work:

  • Entity - an implementation abstract class of IEntity
  • AuditableEntity - an implementation abstract class of IAuditableEntity

INFO

Identifier of the entity is in GUID format in order to provide uniqueness, stability and security.