Native / iframe (postMessage)

For Flutter WebView, Electron, Tauri, Wails, Capacitor — not REST. Use bindHostBridge from @codemerge/integrate/protocol.

import { bindHostBridge } from '@codemerge/integrate/protocol';

const { host, dispose } = bindHostBridge(document.getElementById('editor')!, {
  targetOrigin: '*', // tighten in production
});

// Parent / native shell:
// iframe.contentWindow.postMessage({ type: 'ocm-load', value: '<p>…</p>' }, origin);
// listen for { type: 'ocm-change', value, format } and { type: 'ocm-ready' }
// send { type: 'ocm-destroy' } on teardown

Message types: ocm-load, ocm-change, ocm-ready, ocm-destroy.

For HTTP backends inside a normal browser app, prefer Persistence instead.

Related

• Persistence
• Server + Vite
• Stack deltas: Flutter, Electron, Tauri, Wails, Capacitor