I have VivoActiv4, with one app that raise http request (it's a post), works fine on simulator, but on device nothing appeens on api server..... who can i troubleshoot this issue ?

From ....viwe.mc

function go_TO_API(params)
{
var options = {
:method => Communications.HTTP_REQUEST_METHOD_POST,
:headers => {"Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON},
:responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
};

Communications.makeWebRequest("">127.0.0.1:8000/leituras", params, options, metodo());
}

function metodo() {
System.println("Dados Enviados");
}

It call like this:

var params = {"name" => 1,"rssi" => BEACON_1_RSSI,"detecao_data" => DATA_TOTAL};
go_TO_API(params);