Shopify to MERN Auto Order Sync

I run shipduniya.in on a full MERN stack and I need every order placed in my Shopify store to appear in our MongoDB in near real-time, complete with customer details, AWB assignment and live status updates back to Shopify.

The flow I picture is straightforward: a webhook (or similar) fires from Shopify, your service captures it, formats the payload, then writes order and customer data into our existing collections. When the shipment moves, my system should push the new status and AWB number to Shopify so the buyer sees the update instantly.

Key data points are:
• Order details (items, prices, shipping method, timestamps)
• Customer information (name, email, phone, address)
• Two-way status synchronisation, including AWB generation/return

Tech context: the site uses Node.js/Express on the backend with MongoDB, React on the front. There’s already an auth layer you can hook into; you won’t need to touch the UI, only the services and routes that handle the sync.

Deliverable: a clean, well-documented integration module (controller + service + routes) plus any Shopify app configuration scripts so I can redeploy it in staging and production with a single command. A short README and postman collection for sanity-checking the endpoints will be perfect.

If you’ve connected Shopify to a custom Node backend before, this should be quick work; just let me know what you need from my side and we’ll get moving.