Google Apps Script - Woocommerce Integration payload [duplicate] - arrays

Question

running into problems between GAS and WC RESTv2, Im trying to create a simple product with custom attributes, while I am able to do so without any specific parameter the REST api return this error:
ERROR:
{"code":"rest_invalid_param","message":"Invalid parameter(s): attributes","data":{"status":400,"params":{"attributes":"attributes[0] is not of type object."},"details":{"attributes":{"code":"rest_invalid_type","message":"attributes[0] is not of type object.","data":{"param":"attributes[0]"}}}}}
// the product gets CREATED fine using this simple var data structure :
var data =
{
"name" : " TESTING HERE TOO",
//"sku" : "TESTINGINGING ",
"type" : "simple",
"regular_price" : "1.99",
"weight" : 10,
"manage_stock" : true,
"stock_quantity" : 10,
"description" : "testing \n" } ;
var surl = website + "/wp-json/wc/v2/products?consumer_key=" + keys + "&consumer_secret=" + scret;
var options =
{
"method": "POST",
"Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
"muteHttpExceptions": true,
"payload": data
};
``` // -- the product DOES NOT get created using this :
var data =
{
"name" : " TESTING HERE TOO",
//"sku" : "TESTINGINGING ",
"type" : "simple",
"regular_price" : "1.99",
"weight" : 10,
"manage_stock" : true,
"stock_quantity" : 10,
"description" : "testing \n" } ;
"attributes" : [ { "variation" : "false", "options" : "[ANY]", "id" : 0.0, "name" : "Supplier", "position" : 0.0, "visible" :"false"} , { "variation" : "false", "options" : "[ANY]", "id" : 0.0, "name" : "Invoice", "position" :1.0, "visible" :"false"}]
Any body could shed some light where could be the issue?

Answer 1

In case anybody stumble here, here´s the solution:
if you´d like to know where´s the bug, here it is
var options =
{
"method": "POST",
//"Content-Type": "application/x-www-form-urlencoded;charset=UTF-8", -- it does NOT WORK like content type must be JSON
"contentType": "application/json",
"muteHttpExceptions": true,
"payload": JSON.stringify(data2) -- as long as JSON payload thus stringify accord.
//"payload": data2
};
when you have a JSON within an array in GAS, the only way REST api calls will understand is if you modify 2 things
"contentType": "application/json",
send the payload to rest api WC as json
"payload": JSON.stringify(data2)
trans for the javascript object into json so WC rest api can understand
done.