Sync Shopify product changes to Algolia in real time

Keep my Algolia catalog index in lockstep with Shopify so site search always reflects the current storefront.

Trigger: webhook when Shopify emits a products/create, products/update, or products/delete event. Ignore any other event type.

On a products/create or products/update event, call Shopify Get Product using the product id from the webhook payload to pull the full current record. Then call Algolia Add or Replace Record on my catalog index, using the Shopify product id (as a string) as the objectID.

On a products/delete event, call Algolia Delete Record on the same index with the Shopify product id (as a string) as the objectID. Do not fetch anything from Shopify in this branch. The webhook payload already tells us which record to remove.

For every Algolia record I write, project only a slim, allowlisted set of Shopify fields so indexing costs stay low and the record shape stays predictable:

- title: product.title

- handle: product.handle

- vendor: product.vendor

- product_type: product.product_type

- tags: product.tags split into an array of strings

- price: the first variant's price coerced to a number, or the minimum price across variants if you prefer

- image_url: product.image.src, or null if the product has no image

- availability: true if any variant has inventory_quantity greater than 0 (or the variant does not track inventory) and the product status is active, otherwise false

This is a deterministic, node-based workflow. No LLM reasoning, no branching beyond the three webhook event types. Every step is a documented operation (Shopify Get Product, Algolia Add or Replace Record, Algolia Delete Record) or a small pure-function projection over the Shopify payload.