Get current user id in ASP.NET Identity 2.0

Question

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?

How did you get the UserId, can you please let me know, I am running into a same issue. — Ammar Khan, Jun 04 '14 at 11:43

score 120 · Accepted Answer · answered Mar 25 '14 at 06:12

120

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;.

answered Mar 25 '14 at 06:12

Anthony Chu

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See also: http://stackoverflow.com/questions/20925822/asp-mvc5-identity-how-to-get-current-applicationuser – Chris Patterson May 03 '14 at 03:02
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That seems to be not working with Identity 2. Any suggestion please – Ammar Khan Jun 04 '14 at 11:43
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Should still be there. I'm using GetUserId() in my Identity 2 projects right now. – Anthony Chu Jun 04 '14 at 16:01
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In Identity 3.0 this looks to have moved to the System.Security.Principal namespace. – Sam Feb 27 '15 at 03:55
Is there any method to get current user role? when I should set the role? Note: I am using custom storage provider .. – Jeeva J Mar 06 '15 at 10:21
Okay, as of beta4 it looks like it’s now in System.Security.Claims and applies to a ClaimsPrincipal instead of an identity – Sam Jun 16 '15 at 08:32
Why is this answer marked as the right one? The question is "where is GetUserId in ASP.NET Core?" https://stackoverflow.com/questions/51765214/get-user-id-in-asp-net-core-2 – thomasgalliker Apr 14 '19 at 11:38

score 63 · Answer 2 · answered Aug 22 '14 at 18:39

63

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).

answered Aug 22 '14 at 18:39

Moshtaf

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could you tell me where can I found the corresponding DLL for Microsoft.AspNet.Identity namespace? – Franziee Apr 08 '15 at 09:36

score 16 · Answer 3 · answered May 20 '15 at 18:03

16

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

answered May 20 '15 at 18:03

Paul Plato

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score 7 · Answer 4 · answered Jul 27 '19 at 05:15

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.

score 5 · Answer 5 · answered Apr 15 '22 at 09:37

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);

Get current user id in ASP.NET Identity 2.0

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