AI & MLAdvanced
Evaluating AI Applications in .NET: Quality, Safety and CI
Evaluate LLM apps in .NET with Microsoft.Extensions.AI.Evaluation: quality and safety evaluators, golden datasets, LLM-as-judge, caching, reports and CI gates.
Testing
30 articles about Testing: in-depth .NET and AI guides, senior interview questions and AI news on DotNet AI Hub.
Technologies 16
AI & MLIntermediate
Function Calling and Tool Use with LLMs in C#
Master function calling in C# with Microsoft.Extensions.AI: AIFunctionFactory, FunctionInvokingChatClient, parallel calls, approvals, security and tests.
AI & MLIntermediate
Microsoft.Extensions.AI: Unified AI Abstractions for .NET
Master Microsoft.Extensions.AI: IChatClient, IEmbeddingGenerator, streaming, tool calling, middleware pipelines, DI registration, custom clients and testing.
ArchitectureIntermediate
Clean Architecture in .NET: A Practical Guide
Clean Architecture in .NET 10 explained: layers, the dependency rule, project layout, use case handlers, validation, mapping, testing and vertical slices.
ArchitectureIntermediate
Modular Monoliths in .NET: Structure, Boundaries and Evolution
Build a modular monolith in .NET: module boundaries, per-module schemas, in-process messaging and NetArchTest or ArchUnitNET rules that hold as it grows.
ASP.NET CoreIntermediate
ASP.NET Core Middleware: Build and Order Your Pipeline
Master ASP.NET Core middleware: the RequestDelegate pipeline, Use, Run, Map and UseWhen, correct ordering, custom and IMiddleware components, errors and tests.
ASP.NET CoreIntermediate
Minimal APIs in ASP.NET Core: The Complete Guide
Build fast HTTP APIs with Minimal APIs in ASP.NET Core: route handlers, binding, TypedResults, route groups, filters, .NET 10 validation, OpenAPI and AOT.
Cloud-NativeIntermediate
.NET Aspire 13: Cloud-Native Orchestration for .NET
Learn .NET Aspire 13: the AppHost resource model, service defaults, dashboard, Redis and PostgreSQL integrations, testing and deploying with aspire deploy.
Data & EF CoreAdvanced
Database Migrations and Zero-Downtime Schema Changes in .NET
Ship schema changes safely in .NET: EF Core migrations, bundles, idempotent scripts, CI/CD rollout, expand-contract, backfills, DbUp and FluentMigrator.
Platform & RuntimeIntermediate
Dependency Injection in .NET: The Complete Guide
Master dependency injection in .NET: service lifetimes, scope validation, captive dependencies, keyed services, open generics, decorators and anti-patterns.
Platform & RuntimeBeginner
.NET Release Cadence, LTS vs STS and Upgrade Strategy
How the .NET release cadence works: LTS vs STS support (STS is now 24 months), end-of-support dates for .NET 8 to 11 and a practical upgrade strategy.
PerformanceIntermediate
Benchmarking .NET Code with BenchmarkDotNet
Learn to benchmark .NET code correctly with BenchmarkDotNet: core attributes, memory diagnostics, parameters, baselines and CI regression checks.
SecurityIntermediate
Authorization in ASP.NET Core: Roles, Claims, Policies and Resource-Based Access
Learn ASP.NET Core authorization in depth, covering roles, claims, policy requirements and handlers, resource-based checks, permissions and testing.
Testing & DevOpsIntermediate
Code Quality in .NET: Analyzers, EditorConfig and Static Analysis
Enforce .NET code quality with built-in analyzers, EditorConfig, TreatWarningsAsErrors, dotnet format and third-party static analysis tools.
Testing & DevOpsIntermediate
Integration Testing ASP.NET Core with WebApplicationFactory and Testcontainers
Integration test ASP.NET Core with WebApplicationFactory, real databases via Testcontainers, Respawn resets, auth mocking and Aspire's testing builder.
Testing & DevOpsBeginner
Unit Testing in .NET: xUnit, NUnit, MSTest and Mocking
A practical guide to unit testing in .NET with xUnit v3, NUnit, MSTest, Microsoft.Testing.Platform, mocking with NSubstitute and Moq, and assertions.
Interview Questions 14
AI EngineeringSenior
LLM Integration Interview Questions for .NET Developers
Senior .NET interview questions on Microsoft.Extensions.AI, streaming, function calling, structured output, provider abstraction, retries and testing LLM code.
ArchitectureArchitect
Clean, Onion and Hexagonal Architecture Interview Questions
Architect-level interview questions on Clean, Onion and Hexagonal Architecture covering the dependency rule, ports and adapters and vertical slices.
ArchitectureLead
Legacy .NET Modernization Interview Questions
Lead-level interview questions on modernizing .NET Framework applications, covering the strangler fig pattern, WCF and Web Forms migration, and risk management.
ArchitectureSenior
SOLID Principles Interview Questions at the Senior Level
Senior-level SOLID principles interview questions with real .NET examples, over-application pitfalls, testability, DI and refactoring guidance.
ArchitectureLead
Technical Debt and Large-Scale Refactoring Interview Questions
Lead-level interview questions on identifying and measuring technical debt, prioritization frameworks, refactoring safely at scale and preventing new debt.
ASP.NET CoreSenior
Minimal APIs vs Controllers Interview Questions
10 senior ASP.NET Core interview questions comparing Minimal APIs and controllers on architecture, performance, Native AOT, testing and migration.
Async & ConcurrencySenior
Deadlocks and Race Conditions Interview Questions
Senior-level questions on sync-over-async deadlocks, lock ordering, TOCTOU races, dump analysis and avoiding shared mutable state.
Cloud & DevOpsLead
CI/CD and Deployment Strategy Interview Questions for .NET Teams
CI/CD and deployment strategy interview questions for senior .NET engineers: pipeline design, trunk-based dev, blue-green, canary, flags and DORA metrics.
Cloud & DevOpsSenior
Infrastructure as Code Interview Questions for Senior .NET Engineers
Ten senior-level interview questions on Bicep, Terraform and Pulumi covering state, modules, drift detection, policy as code and testing IaC.
Cloud & DevOpsLead
Testing Strategy Interview Questions for Senior .NET Engineers
Ten lead-level interview questions on test pyramids, contract testing, Testcontainers, flaky tests, load testing and mutation testing in .NET.
Data & EF CoreSenior
Repository and Unit of Work Pattern Interview Questions
Senior .NET interview questions on the repository and unit of work patterns, generic repository pitfalls, the specification pattern and CQRS reads.
Data & EF CoreLead
Zero-Downtime Database Migration Interview Questions
Lead-level interview questions on zero-downtime database migrations, expand-contract, online indexes, safe backfills and running EF Core in pipelines.
Distributed SystemsArchitect
Microservices Design Interview Questions for .NET Architects
Architect-level .NET interview questions on service boundaries, data ownership, API contracts, shared libraries, service templates and independent deployability.
PerformanceSenior
Benchmarking and BenchmarkDotNet Interview Questions
Senior .NET interview questions on BenchmarkDotNet and load testing: microbenchmark design, statistics, CI benchmarks, k6, NBomber and p50/p95/p99 latency.