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Controllers

Controllers are responsible for validating the request, serving the request data, and building a response. Validation and response happen in separate classes but are triggered from the Controller.

Principles​

  • Controllers SHOULD NOT know anything about business logic or any business object.
  • A Controller SHOULD only do the following jobs:
    1. Reading Request data (user input)
    2. Calling an Action (and passing request data to it)
    3. Building a Response (usually builds the response based on the data collected from the Action call)
  • Controllers SHOULD NOT have any form of business logic (It SHOULD call an Action to perform the business logic).
  • Controllers SHOULD NOT call Container Tasks. They MAY only call Actions (And then Actions can call Container Tasks).
  • Controllers CAN be called by Routes Endpoints only.
  • Every Container UI folder (Web, API, CLI) will have its Controllers.