如何将值从一个 controller 传递到 .netcore 中的另一个 controller

Question

Logged User Id stored into another table. How to Pass the Login UserId to the another controller. ** public async Task Login([FromBody] LoginModel model) {

        var user = await userManager.FindByNameAsync(model.Username);
        if (user != null && await userManager.CheckPasswordAsync(user, model.Password))
        {
            var userRoles = await userManager.GetRolesAsync(user);

            var authClaims = new List<Claim>
            {
                new Claim(ClaimTypes.Name, user.UserName),
                new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
            };

            foreach (var userRole in userRoles)
            {
                authClaims.Add(new Claim(ClaimTypes.Role, userRole));
            }

            var authSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration["JWT:Secret"]));

            var token = new JwtSecurityToken(
                issuer: _configuration["JWT:ValidIssuer"],
                audience: _configuration["JWT:ValidAudience"],
                expires: DateTime.Now.AddDays(3),
                claims: authClaims,
                signingCredentials: new SigningCredentials(authSigningKey, SecurityAlgorithms.HmacSha256)
                );

            return Ok(new
            {
                token = new JwtSecurityTokenHandler().WriteToken(token),
                username=user.UserName,
                expiration = token.ValidTo
            });
        }
        return Unauthorized();
    }
   Login **

Answer 1

You can use Temp Data:

 TempData["UserID"] = user.ID;

In a different controller:

 var userID = TempData["UserID"];

Using session:

Configure session state in startup class:

In ConfigureServices:

services.AddDistributedMemoryCache();
services.AddSession(options =>
{
    options.IdleTimeout = TimeSpan.FromMinutes(10);
    options.Cookie.HttpOnly = true;
    options.Cookie.IsEssential = true;
});

In confugure:

 app.UseSession();

1. Define a string

   public const string SessionUserId = string.Empty();

2. We set a string

   if(string.IsNullOrEmpty(HttpContext.Session.GetString(SessionUserId))) HttpContext.Session.SetString(SessionUserId, user.ID.ToString());

3. We can get defined string:

    var name = HttpContext.Session.GetString(SessionUserId);

More info in documentation: https://docs.microsoft.com/en-us/aspnet/core/fundamentals/app-state?view=aspnetcore-5.0