azure-functions

Hexagonal architecture in Azure Functions is structured by separating API and Worker projects, keeping domain rules inside MediatR handlers and isolating infrastructure concerns. This ensures business logic remains independent of triggers like HTTP, Timer, and Queue.

MediatR is used with Azure Functions by routing command and query handling through MediatR handlers. This pattern separates business logic execution from infrastructure concerns, maintaining a clean domain layer across HTTP, Timer, and Queue triggers.

Azure Functions supports OpenAPI documentation within a hexagonal architecture by applying consistent documentation patterns across all HTTP endpoints. The architecture ensures API definitions remain aligned with the MediatR-driven command structure.

Environment-based configuration can be applied across Azure Functions triggers by enforcing environment variable settings throughout the solution. This approach ensures HTTP endpoints and background workers consistently access external configurations.

Errors in Azure Functions are handled using FluentResults to return structured error outcomes instead of throwing exceptions. This enforces a consistent error-handling mechanism within the MediatR handlers across the hexagonal architecture.

Scaling Azure Functions with background workers is best achieved by using a hexagonal architecture blueprint that separates API and Worker projects. This structure scales HTTP, Timer, and Queue triggers independently while maintaining consistent domain logic.