Implementing the OAuth Deviceprofile Flow using ADAL

DeviceprofileADAL.cs

[HttpGet]
public async Task<IActionResult> LoginADAL()
{
  AuthenticationContext ctx = null;
  ctx = new AuthenticationContext("https://login.microsoftonline.com/common");
 
  DeviceCodeResult codeResult = ctx.AcquireDeviceCodeAsync(resource, ClientId).Result;
  DCR dcr = new DCR { message = codeResult.Message, 
                      device_code = codeResult.DeviceCode, 
                      expires_in = codeResult.ExpiresOn.ToString(),
                      interval = codeResult.Interval.ToString(), 
                      user_code = codeResult.UserCode, 
                      verification_url = codeResult.VerificationUrl };
 
  //Will run in the background after view has been rendered
  var foo = GetADALToken(codeResult);
 
  return View(dcr);
}
 
public async Task<string> GetADALToken(DeviceCodeResult codeResult)
{
  AuthenticationContext ctx = null;
  AuthenticationResult result = null;
  ctx = new AuthenticationContext("https://login.microsoftonline.com/common");
  try
  {
    result = await ctx.AcquireTokenByDeviceCodeAsync(codeResult);
  }
  catch (Exception exc)
  {
    var error = exc.Message;
  }
 
  return result.IdToken;
}