Getting started
Overview
Sellify exposes four integration surfaces. Everything an app can do goes through one of them:
| Surface | Use it for | Auth |
|---|---|---|
| GraphQL Admin API | Read/write products, inventory, orders, fulfillments, customers; manage webhooks | Custom app access token |
| Webhooks | React to orders/products changes in near real time | HMAC-SHA256 signature |
| Liquid theme code | Storefront UI: sections with settings, snippets, custom CSS/JS | Merchant staff (Edit code) |
| Storefront events | Analytics & ad pixels (GA4, GTM, Google Ads, Meta, anything else) | Runs in the shopper's browser |
Start with Build a custom app, then try queries in the API explorer.