Refresh OAuth token

The following example shows you how to refresh an OAuth access token to maintain an active authentication session.

C# example

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Independentsoft.Graph;

namespace Sample
{
    class Program
    {
        static async Task Main(string[] args)
        {
            try
            {
                GraphClient client = new GraphClient();
                client.ClientId = "63333333-209e-454e-b7bd-55a4d201270f";
                client.Tenant = "independentsoft.onmicrosoft.com";
                client.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";

                OAuthToken token = await client.RefreshOAuthToken();

                Console.WriteLine("AccessToken = " + token.AccessToken);
                Console.WriteLine("ExpiresIn = " + token.ExpiresIn);
                Console.WriteLine("TokenType = " + token.TokenType);

                Console.Read();
            }
            catch (GraphException ex)
            {
                Console.WriteLine("Error: " + ex.Code);
                Console.WriteLine("Message: " + ex.Message);
                Console.Read();
            }
        }
    }
}

VB example

Imports Independentsoft.Graph

Namespace Sample
    Class Module1
        Shared Sub Main(ByVal args As String())
            Dim task = New Task(AddressOf Run)
            task.Start()
            Console.Read()
        End Sub

        Shared Async Sub Run()
            Try
                Dim client As GraphClient = New GraphClient()
                client.ClientId = "63333333-209e-454e-b7bd-55a4d201270f"
                client.Tenant = "independentsoft.onmicrosoft.com"
                client.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

                Dim token As OAuthToken = Await client.RefreshOAuthToken()

                Console.WriteLine("AccessToken = " & token.AccessToken)
                Console.WriteLine("ExpiresIn = " & token.ExpiresIn)
                Console.WriteLine("TokenType = " & token.TokenType)

            Catch ex As GraphException
                Console.WriteLine("Error: " & ex.Code)
                Console.WriteLine("Error: " & ex.Message)
                Console.Read()
            End Try
        End Sub
    End Class
End Namespace

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