I'm asking myself a question about clean architecture.
Let's imagine a small api that allow us to create and get a user using that type of archi. This app has two endpoints and store the data in a database. Let's say that we have a db model that look like
class User:
id: int
firstname: str
lastname: str
Firstly, the GET endpoint will use the usecase GetUser and use a User entity. This entity will look like:
class User:
id: int
firstname: str
lastname: str
My question concerns the POST endpoint.
The data passed in this endpoint is only the fields firstname and lastname, obviously.
Do I have to do another entity like this one under ?
class UserRequest:
firstname: str
lastname: str
I found this unsatisfying because it does not make sense to imagine such an entity as a business point-of-view. Nevertheless, it seems a bit wobbly to make an entity "composite" such as:
class User:
id: Optional[int]
firstname: str
lastname: str
A third option is to use a class inside the usecase file that have for only purpose to model the past coming from the POST request. ie
class UserRequest:
firstname: str
lastname: str
class CreateUserUseCase:
def __init__():
...
def execute(request: UserRequest):
...
So the question is: According to clean architecture principles, What is the best way to model data coming from a POST request that is not a business entity?
Thanks a lot for your help, and don't hesitate to ask question if my examples are not clear enough.
Stef.
