public async Task <IActionResult> OnPostRemoveLoginAsync(string loginProvider, string providerKey)
{
var user = await _userManager.GetUserAsync(User);
if (user == null)
{
return(NotFound($"Unable to load user with ID '{_userManager.GetUserId(User)}'."));
}
var result = await _userManager.RemoveLoginAsync(user, loginProvider, providerKey);
if (!result.Succeeded)
{
var userId = await _userManager.GetUserIdAsync(user);
throw new InvalidOperationException($"Unexpected error occurred removing external login for user with ID '{userId}'.");
}
await _signInManager.RefreshSignInAsync(user);
StatusMessage = "The external login was removed.";
return(RedirectToPage());
}