Elevate Your Shipping Strategy with JavaScript

        
    import { enrichItemDetails } from "./modules.js";
    import { AliExpress } from "./modules.js";

    export async function calculateShippingRates(DATA, env) {
        try {
        // Enrich item details with additional fields
        DATA = await enrichItemDetails(DATA);

        // Extract AliExpress product ids from item skus
        const aliexpressProducts = DATA.items.map((item) => {
            const [aliexpressProductId] = item.sku.split("-");
            return { aliexpress_product_id: aliexpressProductId, quantity: item.quantity };
        });

        // Initialize AliExpress instance with destination and currency
        const aliexpress = new AliExpress(DATA.destination, DATA.currency);

        // Get shipping rates from AliExpress
        const rates = await aliexpress.getRates(aliexpressProducts);

        // Return shipping rates in Shopify format
        return { rates };
        } catch (error) {
        // Return error rate
        return {
            rates: [
            {
                service_name: "Error",
                service_code: "error",
                total_price: null,
                description: error.message,
                currency: DATA.currency,
                min_delivery_date: "",
                max_delivery_date: "",
            },
            ],
        };
        }
    }