Scattering validation across controllers, services, and entities produces inconsistent errors and missed cases. Pin it to the API boundary with FluentValidation and endpoint filters — and let the platform do the rest.
A dropped connection, a mobile retry, a load-balancer timeout — any of these can duplicate a POST. Idempotency keys turn dangerous replays into harmless no-ops, and Granit ships the entire pattern as a single middleware.
.NET 10 makes SSE a first-class citizen with TypedResults.ServerSentEvents(). Build a complete real-time notification stream from HTTP primitives to React hooks — no WebSocket plumbing required.
Stop returning bare strings from your .NET APIs. RFC 7807 Problem Details is the standard for error responses — here is why it matters, what the spec actually says, and how Granit enforces it with zero boilerplate.
Swashbuckle is unmaintained and has no OpenAPI 3.1 support. .NET 10 ships a native document generator. Here is how to replace Swagger UI with Scalar — and what Granit’s ApiDocumentation module does for you automatically.
Returning EF Core entities directly from your endpoints leaks internal structure, creates circular references, and exposes sensitive data. Use response records instead.
