Theme setup

Online Store → Customize → open a product page → Add block → Apps → Cartrella reviews (usually below the product description) → Save.

The block renders:

• the star summary (average + count over published reviews),
• the review list, newest first,
• a Write a review form (rating stars, name, title, review text).

Fitting your theme

Fonts inherit from your theme. Block settings cover the heading, button labels, empty-state text, accent color, and corner radius.

Headless storefronts

The review data is available from the app proxy on your own domain:

GET  /apps/cartrella/reviews?product_id=<numeric id>   → summary + published reviews
POST /apps/cartrella/reviews                            → submit (lands pending)

POST body: { product_id, rating (1–5), title?, body, author_name }. Same proxy-path note as Bundles: if Shopify assigned your store a suffixed path (e.g. /apps/cartrella-1), set it in the block's App proxy path setting.