public async Task <Result <AuthenticationProperties> > ExternalLogin(ExternalLoginRequest externalLoginRequest, string returnUrl)
{
ValidationResult validationResult = _externalLoginRequestValidator.Validate(externalLoginRequest);
if (!validationResult.IsValid)
{
_logger.LogWarning($"Invalid {nameof(ExternalLoginRequest)} model");
return(Result.Fail <AuthenticationProperties>(validationResult.Errors));
}
await _signInManager.SignOutAsync();
string redirectUrl = _urlGenerator.GenerateActionUrl("ExternalLoginCallback", "Account", new { returnUrl });
AuthenticationProperties properties = _signInManager.ConfigureExternalAuthenticationProperties(externalLoginRequest.Provider, redirectUrl);
return(Result.Ok(properties));
}