.net core identity get user id

Asp.net core identity get user id

 public async Task<IActionResult> YourMethodName()
    {
        var userId =  User.FindFirstValue(ClaimTypes.NameIdentifier) // will give the user's userId
        var userName =  User.FindFirstValue(ClaimTypes.Name) // will give the user's userName

        ApplicationUser applicationUser = await _userManager.GetUserAsync(User);
        string userEmail = applicationUser?.Email; // will give the user's Email
    }

.net core identity get user id

public static class ClaimsPrincipalExtensions
{
    public static T GetLoggedInUserId<T>(this ClaimsPrincipal principal)
    {
        if (principal == null)
            throw new ArgumentNullException(nameof(principal));

        var loggedInUserId = principal.FindFirstValue(ClaimTypes.NameIdentifier);

        if (typeof(T) == typeof(string))
        {
            return (T)Convert.ChangeType(loggedInUserId, typeof(T));
        }
        else if (typeof(T) == typeof(int) || typeof(T) == typeof(long))
        {
            return loggedInUserId != null ? (T)Convert.ChangeType(loggedInUserId, typeof(T)) : (T)Convert.ChangeType(0, typeof(T));
        }
        else
        {
            throw new Exception("Invalid type provided");
        }
    }

    public static string GetLoggedInUserName(this ClaimsPrincipal principal)
    {
        if (principal == null)
            throw new ArgumentNullException(nameof(principal));

        return principal.FindFirstValue(ClaimTypes.Name);
    }

    public static string GetLoggedInUserEmail(this ClaimsPrincipal principal)
    {
        if (principal == null)
            throw new ArgumentNullException(nameof(principal));

        return principal.FindFirstValue(ClaimTypes.Email);
    }
}

Source: stackoverflow.com

Similar codes

4 votes318 views3 answers
Httpclient post c# example
C#
1 vote329 views1 answer
Unity mesh showing Instance
C#Unity
1 vote309 views1 answer
How to change the extension of a file C#
C#
0 vote330 views1 answer
How to start commvault services on linux
C#
0 vote335 views2 answers
Calculated field gridview asp.net
C#
5 votes331 views3 answers
List search c#
C#
31 votes305 views4 answers
C# convert string to datetime any format
C#
0 vote312 views1 answer
C# datagridview filter textbox
C#
1 vote350 views1 answer
Find word in string array c#
C#
13 votes317 views3 answers
C# list get last element
C#