NPM package enables saving and loading Fabric.js canvas JSON via custom API

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A new NPM package called fabricjs-document-engine provides a storage adapter for saving and loading Fabric.js canvas projects. It connects a developer's existing Fabric.js canvas to their own HTTP endpoints and database for document persistence. The package handles document workflow but leaves the API, authentication, and storage implementation to the application. The guide demonstrates building a React editor with a typed adapter and an Express/PostgreSQL backend. The solution preserves editable JSON data, unlike a static PNG export.

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