public RestClientMessageHandler(string baseURL, HttpClient httpClient, IRestClientSerializer serializer)
        {
            BaseURL = baseURL;

            _HttpClient = httpClient;

            _HttpClient.BaseAddress = new Uri(baseURL);
            _HttpClient.DefaultRequestHeaders.Accept.Clear();
            _HttpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

            _Serializer = serializer;
        }
 public RestClientMessageHandler(string baseURL, IRestClientSerializer serializer)
     : this(baseURL, new HttpClient(), serializer)
 {
     _JwtToken = null;
 }