Get username by id using identity

Question

I have asp.net core Identity and I want if it is possible to retrieve username of any user using the identity. I know we can subtract Id from the current user as (this is only for current Jwt token):

User.Identity.GetFirstClaimValueByType("id")

I read other questions and someone suggests to use

string username = HttpContext.Current.GetOwinContext()
    .GetUserManager<ApplicationUserManager>().FindById(ID).UserName;

So I try to use HttpContextAccessor but does not have extension method for GetOwinContext, how can I access it.

Try:

But now I want to send id to get a username is that possible? Regards

_httpContextAccessor.HttpContext

Answer 1

Here is an example of how you can use the ApplicationUserManager inside of your controller.

public class MyController : ControllerBase
{
    private static ApplicationUserManager _userManager;


    public MyController(ApplicationUserManager userManager)
    {
        _userManager = userManager;
    }


    [HttpGet]
    public async Task<IActionResult> Get()
    {
        var user = await _userManager.GetUserAsync(User);

        var userName = user.UserName;
    }
}

Please note: The type of ApplicationUserManager must be the same type of UserManager<TUser> registered by the Startup.cs for your Identity classes.