I couldn't get it to work.

[marcelodelta]

Cool idea. I couldn't get it to work.

Could you help?

Error: Couldn't connect to server

Can't shake hands

Thanks for listening

Tauri config

{
	"$schema": "../node_modules/@tauri-apps/cli/schema.json",
	"build": {
		"beforeBuildCommand": "npm run build",
		"beforeDevCommand": "npm run dev",
		"devPath": "http://localhost:3000",
		"distDir": "../.output/public",
		"withGlobalTauri": true
	},
	"package": {
		"productName": "royal",
		"version": "0.1.0"
	},
	"tauri": {
		"allowlist": {
			"all": true
		},
		"bundle": {
			"active": true,
			"category": "DeveloperTool",
			"copyright": "",
			"deb": {
				"depends": []
			},
			"externalBin": [],
			"icon": [
				"icons/32x32.png",
				"icons/128x128.png",
				"icons/128x128@2x.png",
				"icons/icon.icns",
				"icons/icon.ico"
			],
			"identifier": "royal.custom.bundleid",
			"longDescription": "",
			"macOS": {
				"entitlements": null,
				"exceptionDomain": "",
				"frameworks": [],
				"providerShortName": null,
				"signingIdentity": null
			},
			"resources": [],
			"shortDescription": "",
			"targets": "all",
			"windows": {
				"certificateThumbprint": null,
				"digestAlgorithm": "sha256",
				"timestampUrl": ""
			}
		},
		"security": {
			"csp": "default-src blob: data: filesystem: ws: wss: http: https: tauri: 'unsafe-eval' 'unsafe-inline' 'self' img-src: 'self'"
		},
		"updater": {
			"active": false
		},
		"windows": [
			{
				"fullscreen": false,
				"height": 600,
				"resizable": true,
				"title": "Royal",
				"width": 800
			}
		]
	}
}

Cargo

[package]
name = "app"
version = "0.1.0"
description = "A Tauri App"
authors = ["you"]
license = ""
repository = ""
default-run = "app"
edition = "2021"
rust-version = "1.62.1"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[build-dependencies]
tauri-build = { version = "1.0.4", features = [] }

[dependencies]
serde_json = "1.0"
tauri-invoke-http = { git = "https://github.com/tauri-apps/tauri-invoke-http", branch = "dev" }
serde = { version = "1.0.140", features = ["derive"] }
tauri = { version = "1.0.5", features = ["api-all"] }

[features]
# by default Tauri runs in production mode
# when `tauri dev` runs it is executed with `cargo run --no-default-features` if `devPath` is an URL
default = [ "custom-protocol" ]
# this feature is used used for production builds where `devPath` points to the filesystem
# DO NOT remove this
custom-protocol = [ "tauri/custom-protocol" ]

Main

#![cfg_attr(
	all(not(debug_assertions), target_os = "windows"),
	windows_subsystem = "windows"
)]

#[tauri::command]
fn my_command(args: u64) -> Result<String, ()> {
	println!("executed command with args {:?}", args);
	Ok("executed".into())
}

fn main() {
	let http = tauri_invoke_http::Invoke::new(["tauri://localhost", "http://localhost:8080"]);

	tauri::Builder::default()
		.invoke_system(http.initialization_script(), http.responder())
		.setup(move |app| {
			http.start(app.handle());
			Ok(())
		})
		.invoke_handler(tauri::generate_handler![my_command])
		.run(tauri::generate_context!())
		.expect("error while running tauri application");
}

javascript

<script setup>
import { invoke } from '@tauri-apps/api/tauri'

invoke('my_command', { args: 5 }).then(data => {
  console.log(data)
}).catch(error => {
  console.log(error)
})
</script>

[lucasfernog]

Can you share a repo we can use to reproduce? Also which OS are you running?

[FabianLars]

Closing due to inactivity. If someone faces a similar issue, please open a new issue,