.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

0 vote152 views1 answer
Vb.net single quote in string
C#
9 votes241 views3 answers
Find gameobject unity
C#Unity
3 votes155 views1 answer
Move file from one folder to another c#
C#
0 vote216 views1 answer
Javas
C#
0 vote172 views1 answer
World space constant size
C#
2 votes143 views1 answer
Assign same value to multiple variables
C#
1 vote154 views1 answer
C# convert double to string
C#
0 vote173 views1 answer
Nunjucks conditional
C#
0 vote161 views1 answer
Cannot implicitly convert type 'system.threading.tasks.task string ' to 'string' c#
C#
21 votes170 views6 answers
C# reverse a string
C#