ASP.NET Core 登录失败，如何找出登录失败的原因？

Question

I'm using ASP.NET Core Identity to manage users. And I get this response when I'm trying to sign-in a user:

{
    type: "Error",
    message: "Not logged in",
    data: {
        succeeded: false,
        isLockedOut: false,
        isNotAllowed: false,
        requiresTwoFactor: false
    }
}

As you can see, user is not logged in, and no other reason is true .

What should I do now to find out "why" user has not logged in? How to find the error here?

The method I'm using is PasswordSignInAsync and the result it returns is SignInResult and it does not have a field for the error description.

Answer 1

The method I'm using is PasswordSignInAsync and the result it returns is SignInResult and it does not have a field for the error description.

To troubleshoot the issue, you can refer to the following code snippet to check if user is existing/registered, then check if the given password is valid for the specified user.

//check if user is existing 
var user = await _userManager.FindByEmailAsync(Input.Email); //or .FindByNameAsync(username_here)


//check if pwd is valid
var pwd_is_valid = _userManager.CheckPasswordAsync(user, Input.Password);

And, you can try to debug your code and check if any useful logs are written to output window.

Besides, you can try to register a new user and login with that new user's account to check if it can work well.