API Design

ActionResult vs typed results in ASP.NET Core APIs

Compare controller ActionResult patterns with minimal API typed results and explicit HTTP outcomes.

Add guardrails around EF Core tenant query filters

Explains how tenant query filters help, where they can be bypassed, and what extra safeguards protect tenant isolation.

API consistency across service boundaries

Explain API behavior when data and operations cross services with separate data ownership.

ApiController conventions and automatic validation responses

Explains attribute routing, binding-source inference, automatic validation responses, and where explicit domain validation still belongs.

Apply a partitioned write rate limit

Partitions limits by authenticated user or trusted client address and returns useful 429 retry metadata.

Apply rate limits and abuse throttles to APIs

Explains rate-limit identity, endpoint cost, login and suggestion throttles, Redis counters, user experience, and observability.

.NET Full Stack

Full-cycle .NET full-stack interview preparation.

A role-based preparation path covering C#, ASP.NET Core APIs, data access, frontend integration, testing, deployment, system design, real-life scenarios, and behavioral interview topics.

.NET Backend