index.js

const products = []; // products Array that will be in Shopify bulk import data after converting it to JSONL and uploading it

const getProductDetails = (product) => {
  // using function to get data from somewhere

  // we have the data needed to create the product

  // the product param will be an object holding the product data

  let data = {
    media: [],
    input: {
      title: product.title,
      descriptionHtml: product.descriptionHtml,
      barcode: product.barcode,
      variants: [],
      options: [],
      handle: product.handle,
      tags: product.tags,
      published: true, // make published from the first time
    },
  };

  data.variant = product.variants.map((variant, index) => {
    data.media.push({
      mediaContentType: "IMAGE",
      originalSource: variant.publicImageUrl,
    });
    return {
      mediaSrc: [variant.publicImageUrl],
      price: variant.price,
      compareAtPrice: variant.compareAtPrice,
      weight: variant.weight,
      sku: variant.sku,
      position: index,
    };
  });
  products.push(data);
};