ASP.NET Core-如何獲取當前登錄的用戶

Question

我想使用路由GET api/auth/user創建一個控制器，以返回當前登錄用戶的詳細信息。 我創建的api api/auth/login令牌處理在15分鍾內過期。 那么哪種方法可以返回當前登錄用戶的ID？

這是我當前的代碼：

auth-controller.cs：

[Route("api/auth")]
  public class AuthController : Controller
  {
    private readonly IAuthRepository repo;
    private readonly IConfiguration config;
    private readonly IUserRepository userRepo;
    public AuthController(IAuthRepository repo, IConfiguration config, IUserRepository userRepo)
    {
      this.userRepo = userRepo;
      this.config = config;
      this.repo = repo;
    }    
    [HttpPost("login")]
    public async Task<IActionResult> Login([FromBody]UserForLogin userForLogin)
    {
      var userFromRepo = await this.repo.Login(userForLogin.Email.ToLower(), userForLogin.Password);

      if (userFromRepo == null)
        return Unauthorized();

      // generate token
      var tokenHandler = new JwtSecurityTokenHandler();
      var key = Encoding.ASCII.GetBytes(this.config.GetSection("AppSettings:Token").Value);
      var tokenDescriptor = new SecurityTokenDescriptor
      {
        Subject = new ClaimsIdentity(new Claim[]
        {
          new Claim(ClaimTypes.NameIdentifier, userFromRepo.Id.ToString()),
          new Claim(ClaimTypes.Name, userFromRepo.Email)
        }),
        Expires = DateTime.Now.AddMinutes(15),
        SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha512Signature)
      };
      var token = tokenHandler.CreateToken(tokenDescriptor);
      var tokenString = tokenHandler.WriteToken(token);

      return Ok(new { tokenString });
    }

  }

user-repository.cs：

public class UserRepository : IUserRepository
  {
    private readonly DataContext context;
    public UserRepository(DataContext context)
    {
      this.context = context;
    }
    public async Task<User> GetUser(int id)
    {
      return await this.context.User
        .AsNoTracking()
        .SingleOrDefaultAsync(u => u.Id == id);
    }
  }

編輯：好的，到目前為止，我在控制器內通過它解決了這個問題：

var currentUserId = int.Parse(User.FindFirst(ClaimTypes.NameIdentifier).Value);

Answer 1

可以通過以下代碼檢索當前用戶的詳細信息。

var userId = httpContextAccessor.HttpContext.User.FindFirst(ClaimTypes.NameIdentifier).Value 

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