Infrastructure Layer — EF Core and External Services

The infrastructure layer contains implementations for persistence, messaging, file storage, and external services.

Typical responsibilities:

1. EF Core DbContext and entity configurations.

2. Repository implementations for aggregates.

3. Adapters for external APIs, queues, and caches.

Dependency direction: Infrastructure depends on application/domain abstractions, not the other way around.

Architecture impact: Isolating infrastructure keeps your core logic independent of specific databases or external technologies.

Reference:

Microsoft: Infrastructure and EF Core

https://learn.microsoft.com/dotnet/architecture/modern-web-apps-azure/common-web-application-architectures#infrastructure