1. Extract the common logic into a separate shared library (e.g., a .ClassLib project).

   Both Project A and Project B reference this library.

   • No HTTP overhead, no duplication, guaranteed consistency.

2. If a shared library isn’t possible, use conditional dependency injection:

   In Project A, inject the direct implementation (no HTTP).

   In Project B, inject the Typed HTTP Client (calls Project A’s API).

   Ensures the same logic is executed in both cases.

Why Avoid Self-HTTP Calls?

• Unnecessary overhead (network, serialization).

• Risk of inconsistency if logic diverges.

Alternative: MediatR (In-Process Mediator)

• Use MediatR to handle internal calls in Project A while exposing the same logic via HTTP for Project B.