C# use the github api to read files out of a directory

githubClient.cs

namespace GithubClient
{
    //JSON parsing methods
    struct LinkFields {
        public String self;
    }
    struct FileInfo{
        public String name;
        public String type;
        public String download_url;
        public LinkFields _links;
    }

    //Structs used to hold file data
    public struct FileData {
        public String name;
        public String contents;
    }
    public struct Directory {
        public String name;
        public List<Directory> subDirs;
        public List<FileData> files;
    }

    //Github classes
    public class Github
    {
        //Get all files from a repo
        public static async Task<Directory> getRepo(string owner, string name, string access_token)
        {    
            HttpClient client = new HttpClient();
            Directory root = await readDirectory("root", client,String.Format("https://api.github.com/repos/{0}/{1}/contents/", owner, name) ,access_token);
            client.Dispose();
            return root;
        }

        //recursively get the contents of all files and subdirectories within a directory 
        private static async Task<Directory> readDirectory(String name, HttpClient client, string uri, string access_token) {
            //get the directory contents
            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, uri);
            request.Headers.Add("Authorization",
                "Basic "+ Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(String.Format("{0}:{1}", access_token, "x-oauth-basic"))));
            request.Headers.Add("User-Agent", "lk-github-client");

            //parse result
            HttpResponseMessage response = await client.SendAsync(request);
            String jsonStr = await response.Content.ReadAsStringAsync();;
            response.Dispose();
            FileInfo[] dirContents = JsonConvert.DeserializeObject<FileInfo[]>(jsonStr);

            //read in data
            Directory result;
            result.name = name;
            result.subDirs = new List<Directory>();
            result.files = new List<FileData>();
            foreach( FileInfo file in dirContents) {
                if (file.type == "dir") { //read in the subdirectory
                    Directory sub = await readDirectory(file.name, client, file._links.self, access_token);
                    result.subDirs.Add(sub);
                } else { //get the file contents;
                    HttpRequestMessage downLoadUrl = new HttpRequestMessage(HttpMethod.Get, file.download_url);
                    downLoadUrl.Headers.Add("Authorization",
                        "Basic "+ Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(String.Format("{0}:{1}", access_token, "x-oauth-basic"))));
                    request.Headers.Add("User-Agent", "lk-github-client");

                    HttpResponseMessage contentResponse = await client.SendAsync(downLoadUrl);
                    String content = await contentResponse.Content.ReadAsStringAsync();
                    contentResponse.Dispose();

                    FileData data;
                    data.name = file.name;
                    data.contents = content;
                    
                    result.files.Add(data);
                }
            }
            return result;
        }
    }
    public class MainClass {
        public static void Main() {
            var task = Github.getRepo("LeanKit-Labs", "cowpoke", "<myToken>");
            task.Wait();
            var dir = task.Result;
        }
    }
}