Converting a Variant ID to Nacelle Entry ID

In Nacelle V2 each product variant has its own nacelleEntryId. This ID is used by the shopify-cart package to, as the name suggests, add specific items to a users cart. However, when using the Compatibility Connector the nacelleEntryId is lost. Here's a function that will allow you to convert a variant's id to a nacelleEntryId:

functionvariantSourceEntryIdToNacelleEntryId(shopifySubdomain, sourceEntryId, locale="en-US") {
  letbase64Decode = (x) =>x;
  letbase64Encode = (x) =>x;


  if (typeofdocument !== "undefined") {
    // browser runtime
    base64Decode = globalThis.atob;
    base64Encode = globalThis.btoa;
  } else {
    // server runtime
    base64Decode = (x) => Buffer.from(x, "base64").toString("utf-8");
    base64Encode = (x) => Buffer.from(x).toString("base64");
  }

  constdecodedSourceEntryId = base64Decode(sourceEntryId); // returns 'gid://shopify/ProductVariant/<variant-id>'
  constvariantId = decodedSourceEntryId.split("/").at(-1);

  nacelleEntryId = base64Encode(
    `id://SHOPIFY/${shopifySubdomain}/default/PRODUCT_VARIANT/${variantId}/${locale}`
  );

  console.log(nacelleEntryId)
}

Note that that the shopifySubdomain parameter in the function above is not the full URL, just your site's unique name. For example, if your site's full subdomain is "my-site.myshopify.com," then you'd only need to pass in "my-site."