/// <summary>
/// Get Token for App.
/// </summary>
/// <returns>Token for app.</returns>
public static async Task <string> GetTokenForAppAsync()
{
AuthenticationResult authResult;
authResult = await IdentityAppOnlyApp.AcquireTokenForClientAsync(new string[] { "https://graph.microsoft.com/.default" });
return(authResult.AccessToken);
}
