orderToUrl.js

const orderJSON = require('./order.json');
let arrayOfItems = []
let arrayOfItemsAsString = []
let url = ""
const sc = orderJSON.content.salesChannel
const account = orderJSON.content.items[0].catalogProvider.split(":")

const items = Object.values(orderJSON.content.items).map(value => value.id)

arrayOfItems = items.map(value => {
    let obj = {
        "id": value,
        "quantity": 1,
        "seller": "1"
    }

    return obj
})

arrayOfItemsAsString = arrayOfItems.map(value => {
    let itemParameters = `sku=${value.id}&qty=${value.quantity}&seller=${value.seller}&sc=${sc}`

    return itemParameters
})

url = `https://${account[3]}.myvtex.com/checkout/cart/add/?${arrayOfItemsAsString.join("&")}`

console.log(url)