Developer

Authenticate with an API key, read and write your store over HTTP, and understand the shape of every response and every error.

Build something other merchants can install: register an app, walk a store through OAuth, call the API with the token you get, and submit a version for review.

Ship a block your app owns, so merchants can drag it onto a page in the editor and it keeps rendering from your app afterwards.

Do the same work from a terminal: the sb command scaffolds an app that runs, uploads an island's code every time you save, and pushes a version without opening the browser.

The three DOM events a form fires on a published page — which you can listen to, and cancel — so code you write can add rules that belong to your shop.