Datastar (Rust Backend)

Build HTML-first, reactive web apps with Datastar on the frontend and Rust on the backend.

Datastar is a hypermedia framework. The backend remains the source of truth, the browser gets a small reactive layer through data-* attributes, and the server drives UI updates by patching HTML and signals over normal HTTP responses, especially SSE.

This document focuses on:

• how Datastar wants you to structure apps
• what the frontend actually sends and expects
• what the Rust SDK supports today
• where the docs and Rust repo are currently out of sync

Version Notes

As of 2026-03-08: