🧑‍💻 Task Requirements

You need to build a C# Web API that exposes a single endpoint:

POST /payout

Your service must:

1. Accept incoming requests with header:

   x-provider: A
   

   or

   x-provider: B
   

2. Forward the request to the correct mock provider (http://provider-a:5001/payout or http://provider-b:5002/payout).

3. Each provider has:

   • Different request schema
   • Different response schema

4. Your solution should:

   • Keep the controller thin — it should only delegate work to your application services.

   • Introduce a central service (for example, PayoutCoreService) that orchestrates the flow:

     • Log the start of a payout.
     • Translate the incoming request into the provider’s format.
     • Call the provider.
     • Translate the provider’s response back to your system’s response format.
     • Log the successful payout.

   • Encapsulate provider-specific logic behind interfaces so it’s easy to add new providers later.

   • Introduce a mapping layer to handle conversions between your internal DTOs and provider-specific DTOs.

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📌 What we expect to see

• A design where:

  • Provider selection is not hardcoded in the controller (it should be resolved cleanly elsewhere).
  • Mappers/adapters handle translation of requests and responses.
  • A single orchestration service ties everything together.

You are free to design the abstractions as you see fit. What matters most is that the code is extensible, clean, and testable.

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