Groq query for retrieving document ID based on product ID

"result":[1 item
0:{10 items
"_createdAt":"2020-08-17T23:14:12Z"
"_id":"Gk1LBo8Kg5xEVuqFLjoonz"
"_rev":"Gk1LBo8Kg5xEVuqFLjoojw"
"_type":"products"
"_updatedAt":"2020-08-17T23:14:12Z"
"image":{2 items
"_type":"image"
"asset":{...}2 items
}
"name":"Testing Product"
"price":"5000"
"price_id":"price_1HHHWnHk5l44uIELkHjFxVc2"
"product_id":"prod_HqzVaPGvVvUR5s"
}
]

*[_type == "products" && product_id == "prod_HqzVaPGvVvUR5s]{
    _id
}

*[_type == "products" && product_id == "prod_HqzVaPGvVvUR5s]{
    _id
}

      const query = `*[_type == "products" && product_id == ${payload.data.object.product}]`;

 client.fetch(query).then((products) => {
        console.log("products");
        console.log(products);
        console.log("products");
      });

*[_type == "products" && product_id == prod_HqzVaPGvVvUR5s]