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Developing Applications with ASP.NET Core

HTTP GET

Explore how to create HTTP GET methods in ASP.NET Core Web APIs to fetch collections or individual user data by ID. Understand routing with attributes, asynchronous calls, and handling multiple return types. This lesson helps you implement effective GET endpoints to support front-end data requests.

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Start off with an action method that is dealing with the GET requests. Call this method GetUsers().

Code

C#
// GET: api/Users
[HttpGet]
public async Task<ActionResult<IEnumerable<User>>> GetUsers()
{
    return await _context.Users.ToListAsync();
}

Explanation

[HttpGet] informs the framework that this method is a GET method, and the framework provides routing accordingly. In this example, the route will be /Api/Users with the request type of GET.

The action method return type is Task<ActionResult<IEnumerable<User>>>. Break this down to better understand what is going on.

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