tauri-app-wasm

When to use this skill

ALWAYS use this skill when the user mentions:

• Running Rust code as WASM in the Tauri frontend
• WASM vs IPC performance trade-offs
• High-performance frontend computation

Trigger phrases include:

• "WASM", "WebAssembly", "wasm-pack", "Rust in browser", "frontend performance"

How to use this skill

1. Set up a WASM crate alongside your Tauri project:

   cargo install wasm-pack
   wasm-pack new my-wasm-lib
   

2. Build Rust code to WASM:

   wasm-pack build --target web my-wasm-lib
   

3. Import the WASM module in your frontend:

   import init, { process_data } from '../my-wasm-lib/pkg';
   await init();
   const result = process_data(inputBuffer);
   

4. Choose WASM vs IPC:
   • Use WASM for CPU-bound computation that doesn't need system APIs (image processing, crypto, parsing)
   • Use IPC (invoke) for anything requiring OS access (file system, network, notifications)
5. Monitor bundle size impact -- WASM modules add to the frontend bundle
6. Benchmark to verify WASM gives measurable performance gains over JavaScript

Outputs

• WASM crate setup and build pipeline
• Frontend WASM module import pattern
• WASM vs IPC decision framework

References

• https://v2.tauri.app/develop/calling-rust/#wasm
• https://crates.io/crates/tauri-wasm

Keywords

tauri wasm, WebAssembly, wasm-pack, Rust wasm, frontend performance