Создание нового объекта, взяв часть элемента из существующего объекта

Question

Немного предыстории, я публикую в API PayPal из компонента Angular 6 и получаю следующую ошибку:

Error: Request to post https://www.sandbox.paypal.com/v1/payments/payment failed with 400 error. Correlation id: c4d516c6ef58b, c4d516c6ef58b

{
    "name": "VALIDATION_ERROR",
    "details": [
        {
            "field": "transactions.item_list.items.category",
            "issue": "Cannot construct instance of `com.paypal.platform.payments.model.rest.types.ItemCategory`, problem: oils is invalid value. Supported values are PHYSICAL, DIGITAL"
        }
    ],
    "message": "Invalid request - see details",
    "information_link": "https://developer.paypal.com/docs/api/payments/#errors",
    "debug_id": "c4d516c6ef58b"

Это потому, что в моем JSON есть элемент с именем "category", но его значение не "PHYSICAL" или "DIGITAL"

В результате мне нужно создать новый объект, в котором есть элементы, которые PayPal может принять - идентификатор станет sku, имя может остаться именем, цена может остаться ценой, счетчик станет количеством, а описание останется описанием.

С учетом вышесказанного объект JSON, который я получаю, содержит гораздо больше элементов, чем только пять перечисленных. Я пытался создать другой объект следующими способами, но я получал различные ошибки, от корзины не определено до .map не является функцией:

this.product = this.shoppingCartObj.cart.products.product;
const Obj = this.product;
const countRows = Object.keys(Obj).map(function(key) {
  return [Number(key), Obj[key]];
});

for (let b = 0; b < countRows.length; b++) {
  this.copyShoppingCartObj.cart.products.product[
    b
  ].sku = this.shoppingCartObj.cart.products.product[b].id;
  this.copyShoppingCartObj.cart.products.product[
    b
  ].name = this.shoppingCartObj.cart.products.product[b].name;
  this.copyShoppingCartObj.cart.products.product[
    b
  ].quantity = this.shoppingCartObj.cart.products.product[b].counter;
  this.copyShoppingCartObj.cart.products.product[
    b
  ].price = this.shoppingCartObj.cart.products.product[b].price;
  this.copyShoppingCartObj.cart.products.product[
    b
  ].description = this.shoppingCartObj.cart.products.product[b].description;
  this.ar.push(this.product[b]);
}
this.product = this.copyShoppingCartObj.cart.products.product;

Кому:

this.copyShoppingCartObj = this.shoppingCartObj.map(data => ({
  sku: data.cart.products.product.id,
  name: data.cart.products.product.name,
  quantity: data.cart.products.product.counter,
  price: data.cart.products.product.price,
  description: data.cart.products.product.description
}));

И - "this.shoppingCartObj.forEach не является функцией"

 this.shoppingCartObj.forEach(function(data) {
  const newMap = {};
  newMap.cart.products.product.sku = data.cart.products.product.id;
  newMap.cart.products.product.name = data.cart.products.product.name;
  newMap.cart.products.product.quantity =
    data.cart.products.product.counter;
  newMap.cart.products.product.price = data.cart.products.product.price;
  newMap.cart.products.product.description =
    data.cart.products.product.description;
  this.copyShoppingCartObj.push(newMap);
});

Ниже приведен пример того, как выглядит JSON:

[{
  "id": "8",
  "name": "Austin to Carls 32 to 33 chocolates to oil",
  "price": "9.67",
  "category": "oils",
  "description": "The standard Lorem Ipsum passage, used since the 1500s Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.Ut enim ad minim veniam,quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.Excepteur sint occaecat cupidatat non proident,sunt in culpa qui officia deserunt mollit anim id est laborum. Section 1.10.32 of de Finibus Bonorum et Malorum, written by Cicero in 45 BC Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt.Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur ? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur",
  "ts": "2019-01-08 11:47:09",
  "product_image_id": "33",
  "enabled": "1",
  "product_image": "crater-winslow-40.png",
  "counter": 3
}, {
  "id": "9",
  "name": "something test 3 upd",
  "price": "12.23",
  "category": "chocolates",
  "description": "The standard Lorem Ipsum passage, used since the 1500s Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.Ut enim ad minim veniam,quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.Excepteur sint occaecat cupidatat non proident,sunt in culpa qui officia deserunt mollit anim id est laborum. Section 1.10.32 of de Finibus Bonorum et Malorum, written by Cicero in 45 BC Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo.Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt.Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur ? Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur",
  "ts": "2019-01-08 08:54:49",
  "product_image_id": "29",
  "enabled": "1",
  "product_image": "40-64-grand-canyon.png",
  "counter": 2
}]

Заранее спасибо

Answer 1

Вы можете map пройти через массив объектов и с помощью destructer получить desired key's value и вернуть их как объект в соответствии с вашей парой key value.

let obj = [{"id": "8","name": "Austin to Carls 32 to 33 chocolates to oil","price": "9.67","category": "oils",  "description": "The standard Lorem Ipsum passage, used since the 1500s Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.Ut enim ad minim veniam,quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore e", "ts": "2019-01-08 11:47:09", "product_image_id": "33", "enabled": "1","product_image": "crater-winslow-40.png", "counter": 3}, {"id": "9","name": "something test 3 upd","price": "12.23","category": "chocolates","description": "The standard Lorem Ipsum passage, used since the 1500s Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididu", "ts": "2019-01-08 08:54:49", "product_image_id": "29", "enabled": "1", "product_image": "40-64-grand-canyon.png","counter": 2}]

let op = obj.map(e=>{
  let {counter,id,name,price,description} = e;
  return{
    name,price,description,
    quantity: counter,
    sku: id,
  }
})

console.log(op)