tauri-workspace/docs/guides/patterns/lockdown.md

---

title: Lockdown

import Rater from '@theme/Rater' import useBaseUrl from '@docusaurus/useBaseUrl'

Ease of Use
Extensibility
Performance
Security

Pros:

• Highest security rating
• Elegant and powerful

Cons:

• Rust skills required
• No remote resources

Description

The Lockdown recipe is a minimal usage of the Bridge pattern, which only allows interaction between Rust and the Window via expiring JS Promise Closures that are injected into the Window by Rust and nulled as part of the callback.

Diagram

import Mermaid, { colors } from '@theme/Mermaid'

<Mermaid chart={`graph TD

  H==>F
  G-.->B
  B-->G
  subgraph WEBVIEW
  G-->F
  end
  subgraph RUST
  A-->B
  A==>H
  end
  A[Binary]
  B[API:Event]
  F[Window]
  G((Promise Closure))
  H{Bootstrap}
  style RUST fill:${colors.orange.light},stroke:${colors.orange.dark},stroke-width:4px
  style WEBVIEW fill:${colors.blue.light},stroke:${colors.blue.dark},stroke-width:4px`} />

Configuration

Here's what you need to add to your tauri.conf.json file:

"tauri": {
  "allowlist": {}                  // all API endpoints are default false
}