.asp.net webapi TokenService Value cannot be null

Question

Getting Email From ClaimTypes in asp.net core 6 Give error "Value cannot be null"

When i use AddIdentityCore in the service the methode for geting the current login user from _userManager
Working Fine

var user = await _userManager.FindByEmailAsync(User.FindFirstValue(ClaimTypes.Email));

services.AddIdentityCore(opt =>
            {
                opt.Password.RequireNonAlphanumeric = false;
            })
            .AddEntityFrameworkStores()
            .AddSignInManager>();

But if i change the AddIdentityCore to AddIdentity as below then cant get the user from _userManager

services.AddIdentity(opt =>
            {
                opt.Password.RequireNonAlphanumeric = false;
            })
            .AddEntityFrameworkStores()
            .AddSignInManager>();

And Give the Follwoing Error

"statusCode": 500,
    "message": "Value cannot be null. (Parameter \u0027email\u0027)",
    "details": "   at Microsoft.AspNetCore.Identity.UserManager\u00601.FindByEmailAsync(String email)

I want to use IdentityRole in service to allow me save Asp.net User Rolls and assign them to user
Here is my Token Service which create JWT Token

using Microsoft.IdentityModel.Tokens;
using System.Text;
using System.IdentityModel.Tokens.Jwt;

namespace API.Services
{
    public class TokenService
    {
        private readonly IConfiguration _config;
        public TokenService(IConfiguration config)
        {
            _config = config;
        }

        public string CreateToken(AppUser user)
        {
            var claim = new List
            {
            new Claim(ClaimTypes.Name,user.UserName),
            new Claim(ClaimTypes.NameIdentifier,user.Id),
            new Claim(ClaimTypes.Email,user.Email),
            };

            var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_config["MyTokenKey"]));
            var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha512Signature);

            var tokenDescriptor = new SecurityTokenDescriptor
            {
                Subject = new ClaimsIdentity(claim),
                Expires = DateTime.Now.AddDays(7),
                SigningCredentials = creds
            };

            var tokenHandler = new JwtSecurityTokenHandler();
            var token = tokenHandler.CreateToken(tokenDescriptor);

            return tokenHandler.WriteToken(token);
        }
    }
}

.asp.net webapi TokenService Value cannot be null

0 Answers