Websocket

GitHub npm crates.io

API Reference

Open a WebSocket connection using a Rust client in JavaScript.

Supported Platforms

This plugin requires a Rust version of at least 1.77.2

Platform	Level	Notes
windows
linux
macos
android
ios

Setup

Install the websocket plugin to get started.

Automatic

Use your project’s package manager to add the dependency:

npm

npm run tauri add websocket

yarn

yarn run tauri add websocket

pnpm

pnpm tauri add websocket

deno

deno task tauri add websocket

bun

bun tauri add websocket

cargo

cargo tauri add websocket

Manual

1. Run the following command in the src-tauri folder to add the plugin to the project’s dependencies in Cargo.toml:

   cargo add tauri-plugin-websocket

2. Modify lib.rs to initialize the plugin:

   src-tauri/src/lib.rs

   #[cfg_attr(mobile, tauri::mobile_entry_point)]
   pub fn run() {
       tauri::Builder::default()
           .plugin(tauri_plugin_websocket::init())
           .run(tauri::generate_context!())
           .expect("error while running tauri application");
   }

3. Install the JavaScript Guest bindings using your preferred JavaScript package manager:

   npm

   npm install @tauri-apps/plugin-websocket

   yarn

   yarn add @tauri-apps/plugin-websocket

   pnpm

   pnpm add @tauri-apps/plugin-websocket

   deno

   deno add npm:@tauri-apps/plugin-websocket

   bun

   bun add @tauri-apps/plugin-websocket

Usage

The websocket plugin is available in JavaScript.

import WebSocket from '@tauri-apps/plugin-websocket';
// when using `"withGlobalTauri": true`, you may use
// const WebSocket = window.__TAURI__.websocket;

const ws = await WebSocket.connect('ws://127.0.0.1:8080');

ws.addListener((msg) => {
  console.log('Received Message:', msg);
});

await ws.send('Hello World!');

await ws.disconnect();

Permissions

By default all potentially dangerous plugin commands and scopes are blocked and cannot be accessed. You must modify the permissions in your capabilities configuration to enable these.

See the Capabilities Overview for more information and the step by step guide to use plugin permissions.

src-tauri/capabilities/default.json

{
  "$schema": "../gen/schemas/desktop-schema.json",
  "identifier": "main-capability",
  "description": "Capability for the main window",
  "windows": ["main"],
  "permissions": ["websocket:default"]
}

Default Permission

Allows connecting and sending data to a WebSocket server

This default permission set includes the following:

• allow-connect
• allow-send

Permission Table

Identifier	Description
websocket:allow-connect	Enables the connect command without any pre-configured scope.
websocket:deny-connect	Denies the connect command without any pre-configured scope.
websocket:allow-send	Enables the send command without any pre-configured scope.
websocket:deny-send	Denies the send command without any pre-configured scope.