Extension Method for converting an OAuth access token to a cookie, then adding it to the Hub Connection

[dealproc]

Not sure how helpful this is/will be:

    public static class HubConnectionExtensions {
        public async static void WithOAuthToken(this HubConnection connection, Uri authUri, string accessToken) {
            var cookies = new CookieContainer();
            var clientHandler = new System.Net.Http.HttpClientHandler { 
                UseCookies = true, 
                CookieContainer = cookies 
            };
            var client = new HttpClient(clientHandler) {
                BaseAddress = new Uri(connection.Url)
            };
            client.SetBearerToken(accessToken);
            var result = await client.GetAsync(authUri);
            result.EnsureSuccessStatusCode();

            connection.CookieContainer = cookies;
        }
    }