ASPNETCore Study Notes

Action Results and Status Codes

How ASP.NET Core action results map to HTTP status codes, and how to choose the right response for every outcome.

API Versioning

Strategies and tooling for evolving an ASP.NET Core API's contract without breaking existing consumers.

ASP.NET Core Interview Questions

A focused review of the ASP.NET Core fundamentals, common pitfalls, and system-design questions that come up most often in technical interviews.

Authentication with ASP.NET Core Identity

Learn how ASP.NET Core Identity manages users, passwords, and cookie-based sign-in for server-rendered and hybrid applications.

Authorization Policies and Roles

Learn how ASP.NET Core moves beyond simple role checks into flexible, claims-based authorization policies for fine-grained access control.

Background Services with IHostedService

How to run long-lived and scheduled background work in ASP.NET Core using IHostedService and the BackgroundService base class.

Blazor vs MVC vs Razor Pages

Compare ASP.NET Core's three UI programming models — Blazor, MVC, and Razor Pages — to understand their rendering models, state handling, and when each is the…

Caching Strategies: In-Memory and Distributed

How to use IMemoryCache and IDistributedCache in ASP.NET Core to reduce database load, and how to choose between them.

Configuration and Environments

How ASP.NET Core layers configuration sources and switches behavior between Development, Staging, and Production environments.

Controllers and Attribute Routing

How ControllerBase classes and [Route]/[Http*] attributes map incoming requests to action methods in ASP.NET Core Web API.

CORS Configuration

Understand how Cross-Origin Resource Sharing works in ASP.NET Core and how to configure it safely for browser-based clients calling your API.

Dependency Injection Basics

How ASP.NET Core's built-in dependency injection container registers and supplies services throughout your application.

Deploying to Azure App Service and Docker

Containerize an ASP.NET Core app with a multi-stage Dockerfile and deploy it to Azure App Service using Key Vault-backed configuration and deployment slots.

Entity Framework Core Integration

How to wire Entity Framework Core into an ASP.NET Core application, from DbContext registration to migrations and query patterns.

Integration Testing with WebApplicationFactory

Use Microsoft.AspNetCore.Mvc.Testing's WebApplicationFactory to spin up an in-memory ASP.NET Core app and test real HTTP requests through the full middleware p…

JWT Bearer Authentication

Understand how to secure ASP.NET Core Web APIs with stateless JSON Web Tokens issued and validated via the JWT bearer scheme.

Logging and Observability with Serilog

Configure structured logging with Serilog and pair it with metrics and distributed tracing to build real observability into an ASP.NET Core API.

The Middleware Pipeline

How ASP.NET Core processes every HTTP request through an ordered chain of middleware components.

Minimal APIs

A lightweight, low-ceremony way to build HTTP APIs in ASP.NET Core using top-level route handlers instead of controller classes.

Model Binding and Validation

How ASP.NET Core maps incoming request data onto action parameters and validates it before your handler code runs.

The MVC Pattern in ASP.NET Core

Understand how ASP.NET Core implements Model-View-Controller, separating request handling, business/data concerns, and presentation into distinct, testable lay…

Project Structure and Program.cs

How a default ASP.NET Core project is laid out and how Program.cs bootstraps the host, services, and request pipeline.

Razor Pages Fundamentals

Learn the page-based programming model in ASP.NET Core where markup and code-behind logic live together, simplifying page-focused scenarios without a separate…

Repository Pattern in ASP.NET Core

How to abstract data access behind repository interfaces in ASP.NET Core, and when that abstraction is worth the added indirection over EF Core directly.