One Drive API

Question

Hi I want develop a console application which uploads a file to my one drive. My queries are as follows :

1) Is OneDrive api compatibale with .NET Framework 3.5

2) Below is the code I was trying,I couldnt find the implementation of the method "GetAccessToken". How can we programmatically authenticate a user in a windows console app

private static void UploadFileToSkyDrive(string localFile)
        {
            string url =
              string.Format(@"https://apis.live.net/v5.0/folder.4515677bdf99b35f/  files/{0}?access_token={1}", Path.GetFileName(localFile), GetAccessToken());

            using (var client = new WebClient())
            {
                var result = client.UploadData(new Uri(url), "PUT");
                string strResult = Encoding.UTF8.GetString(result);
            }
        }

Thanks in advance

Rahul.