Get current user id in ASP.NET Identity 2.0

I just switched over to using the new 2.0 version of the Identity Framework. In 1.0 I could get a user object by using manager.FindByIdAsync(User.Identity.GetUserId()). The GetUserId() method does not seem to exists in 2.0.

Now all I can figure out is to use manager.FindByEmailAsync(User.Identity.Name) which references the username field in the users table. In my application this is set to the same as the email field.

I can see this causing issues down the road when someone needs to update their email. Is there a way to get the current logged in user object based off an unchanging value (such as the id field) in the Identity 2.0 Framework?

GetUserId() is an extension method on IIdentity and it is in Microsoft.AspNet.Identity.IdentityExtensions. Make sure you have added the namespace with using Microsoft.AspNet.Identity;.

In order to get CurrentUserId in Asp.net Identity 2.0, at first import Microsoft.AspNet.Identity:

C#:

using Microsoft.AspNet.Identity;

VB.NET:

Imports Microsoft.AspNet.Identity

And then call User.Identity.GetUserId() everywhere you want:

strCurrentUserId = User.Identity.GetUserId()

This method returns current user id as defined datatype for userid in database (the default is String).

Just in case you are like me and the Id Field of the User Entity is an Int or something else other than a string,

using Microsoft.AspNet.Identity;

int userId = User.Identity.GetUserId<int>();

will do the trick

I had the same issue. I am currently using Asp.net Core 2.2. I solved this problem with the following piece of code.

using Microsoft.AspNetCore.Identity;
var user = await _userManager.FindByEmailAsync(User.Identity.Name);

I hope this will be useful to someone.

I used Claims to get the userId, username and email of the logged in user.

            var userId = User.FindFirstValue(ClaimTypes.NameIdentifier); // will give the user's userId
        //userName = User.FindFirstValue(ClaimTypes.Name); // will give the user's userName
        //email = User.FindFirstValue(ClaimTypes.Email);