public FitbitClient(IAuthorization authorization, HttpClient httpClient = null)
{
if (authorization == null)
{
throw new ArgumentNullException("authorization", "Authorization can not be null; please provide an Authorization instance.");
}
Authorization = authorization;
if (httpClient == null)
{
this.HttpClient = new HttpClient();
}
else
{
this.HttpClient = httpClient;
}
this.HttpClient = authorization.CreateAuthorizedHttpClient(); //use whatever authorization method to provide the HttpClient
}