Fb - Matriz Contents

function() {           // transforma matriz GA4 em matriz Contents do Facebook
  var products = {{dlv - ecommerce.items}}; //matriz de produtos no padrão GA4
  var tam = products.length
  var indice=0
  var viarray =[{"id":products[indice].item_id,
                 "title":products[indice].item_name,
                 "category":products[indice].item_category,
                 "item_price":products[indice].price,
                 "quantity":products[indice].quantity
                }];
  var tam=tam-1
    while (tam !=0){
       var indice=indice+1
       viarray.push ({"id":products[indice].item_id,
                      "title":products[indice].item_name,
                      "category":products[indice].item_category,
                      "item_price":products[indice].price,
                      "quantity":products[indice].quantity
                      });
       var tam=tam-1
                    }  
  return viarray;
}