Microsoft Account Windows Forms

This library provides an easy way to generate Microsoft Account access and refresh tokens from a Windows Forms application. It has been forked from here and has been modified to use the Microsoft Identity Platform docs

Before using this library, you need to register your application on the Microsoft Account developer center. Your application needs to be configured as a Mobile or Desktop Client application on the API settings page for this library to work.

To retrieve a one-time access token (currently un-tested):

using MicrosoftAccount.WindowsForms;

public async void Authenticate()
{
  string accessToken = await MicrosoftAccountOAuth.LoginOneTimeAuthorizationAsync("client_id", 
    new string[] { "https://graph.microsoft.com/user.read", "offline_access" }, true);
}

To retrieve a refresh token along with your access token to enable your app to stay signed-in for longer than the 1 hour access token validitity period:

using MicrosoftAccount.WindowsForms;

public async void Authenticate()
{
  bool selectAccount = true;
  var token = await MicrosoftAccountOAuth.LoginAuthorizationCodeFlowAsync("client_id",
    new string[] { "https://graph.microsoft.com/user.read", "offline_access" }, selectAccount);
  
  string accessToken = token.AccessToken;
  string refreshToken = token.RefreshToken;
  string userEmail = token.Email;
  
  // Store these values somewhere useful. Treat them like passwords!
}

After the access token has expired, you can redeem the refresh token for a new set of tokens using RedeemRefreshTokenAsync():

using MicrosoftAccount.WindowsForms;

public async void RenewAuthentication()
{
  var token = await MicrosoftAccountOAuth.RedeemRefreshTokenAsync("client_id", "refresh_token");
  
  string accessToken = token.AccessToken;
  string refreshToken = token.RefreshToken;
  
  // Store these values somewhere useful. Treat them like passwords!
}