ASP.NET Core Web API

ASP.NET Core Web API — a practical guide to ASP.NET Core Web API with clear examples you can reuse in real projects.

C# Tutorial Series (108/121). Prefer one article? Read the complete C# tutorial.

Short description

Return proper status codes and problem details for errors.

API controller sketch

[ApiController]
[Route("api/[controller]")]
public class ItemsController : ControllerBase
{
    [HttpGet]
    public ActionResult<IEnumerable<Item>> Get() => Ok(items);
}