ASP.NET Core

Cross-platform, high-performance framework for building modern web apps.

When to Use

• High-performance APIs (one of the fastest benchmarks)
• Enterprise applications
• Microservices
• Real-time apps (SignalR)

Quick Start

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();

app.MapGet("/", () => "Hello World!");

app.Run();

Core Concepts

Middleware Pipeline

Request processing pipeline composed of delegates.

Dependency Injection

Built-in DI container, a core citizen of the framework.

Kestrel

Cross-platform web server for ASP.NET Core.

Best Practices

Do:

• Use the built-in DI
• Use asynchronous controllers (async Task<IActionResult>)
• Use Environment Variables for config settings

Don't:

• Block asynchronous code (.Result or .Wait())
• Store large objects in Session state

References

• ASP.NET Core Docs