sim estou passando uso SDK do .NET tive que alterar ele mas ainda sem sucesso
ai esta a parte do código que alterei
public IRestResponse GetCarrinho(string resource, List<Parameter> param)
{
bool containsAT = false;
var request = new RestRequest(resource, Method.GET);
List<string> names = new List<string>();
foreach (Parameter p in param)
{
names.Add(p.Name + "={" + p.Name + "}");
if (p.Name.Equals("access_token"))
{
containsAT = true;
}
p.Type = ParameterType.UrlSegment;
request.AddParameter(p);
}
request.Resource = resource + "?" + String.Join("&", names.ToArray());
request.AddHeader("Accept", "application/json");
request.AddHeader("x-format-new", "true");
var response = ExecuteRequest(request);
return response;
}