public async Task <IActionResult> OnPost()
{
if (!ModelState.IsValid)
{
_logger.Verbose("Invalid {@Input}", ModelState.Values);
return(Page());
}
var context = await _identityServerInteractionService.GetAuthorizationContextAsync(ReturnUrl);
if (context == null)
{
_logger.Verbose("ReturnUrl invalid, cannot find authorization context", ModelState.Values);
return(BadRequest());
}
using var logContext = LogContext.PushProperty("MobileNumber", MobileNumber);
var existingUsers = await _userManager.FindAllByPhoneNumberAsync(MobileNumber);
string otpCode;
if (!existingUsers.Any())
{
_logger.Information("User not exists, trying to authenticate for registration", ModelState.Values);
otpCode = _otpService.GenerateOtp(MobileNumber);
}
else
{
_logger.Information("User already exists, generating user otp", ModelState.Values);
otpCode = await _userManager.GenerateChangePhoneNumberTokenAsync(existingUsers[0], MobileNumber);
}
await this.SendOtpCode(MobileNumber, otpCode);
return(RedirectToPage("VerifyOtp"));
}