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calling-rust-from-tauri-frontend

Implements Tauri v2 command-based IPC for calling Rust backend functions from JavaScript frontends.

Updated Jun 7, 2026
Search Tags:#typescript#desktop app#rust#commands#tauri#ipc#invoke
One-click install
npx skills add https://github.com/dt418/better-shot-x --skill calling-rust-from-tauri-frontend-dt418
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: calling-rust-from-tauri-frontend
Source: https://github.com/dt418/better-shot-x/tree/main/.agents/skills/calling-rust-from-tauri-frontend
Command: npx skills add https://github.com/dt418/better-shot-x --skill calling-rust-from-tauri-frontend-dt418

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Bridging the gap between a Tauri frontend and its Rust backend requires correctly defining commands, registering handlers, serializing arguments, and handling errors across the IPC boundary, which is error-prone without clear guidance. ## Core Features & Use Cases - Command Definition and Registration: Define Rust functions with the #[tauri::command] attribute and register them via tauri::generate_handler! for frontend invocation. - Argument and Return Serialization: Pass complex structs with serde Deserialize/Serialize, handle snake_case to camelCase mapping, and return binary data via tauri::ipc::Response. - Error Handling and Async IPC: Return Result types with custom thiserror errors, write async commands, and stream data to the frontend using Channels. - Use Case: When building a Tauri 2 desktop app, use this Skill to expose a Rust file-reading function to the TypeScript UI with typed arguments, structured errors, and streaming progress updates. ## Quick Start Show me how to define a Rust command that reads a file and invoke it from my Tauri frontend with proper error handling.

Frequently Asked Questions about calling-rust-from-tauri-frontend

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I call a Rust function from my Tauri frontend?▼

Define the function in Rust with the #[tauri::command] attribute, register it in tauri::generate_handler!, then call it from JavaScript using await invoke('command_name', { args }) from @tauri-apps/api/core.

How to pass arguments to Tauri commands from JavaScript?▼

Pass arguments as an object to invoke, where Rust snake_case parameters map to camelCase keys by default. Complex arguments must implement serde::Deserialize, and you can override naming with rename_all on the command attribute.

Why does my async Tauri command fail to compile with &str arguments?▼

Async Tauri commands cannot use borrowed types like &str because the future may outlive the borrow. Use owned types like String instead, or wrap the return in Result as a workaround.

How do I return errors from Tauri commands to JavaScript?▼

Return Result<T, E> from the command where E implements Serialize, such as String or a custom thiserror enum. On the frontend, the Promise rejects and you catch the error with try/catch around await invoke.

Can Tauri commands stream data to the frontend?▼

Yes, Tauri v2 supports streaming via tauri::ipc::Channel. The command accepts a Channel<T> parameter and sends chunks with channel.send(), while the frontend receives them through a Channel object's onmessage callback.

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