# wry_cmd
Tauri-style `#[command]` macro and command system for [`wry`](https://docs.rs/wry), supporting async Rust functions and front-end integration via a custom protocol.
## 🚀 Features
- `#[command]` macro for both `async fn` and `fn`
- Auto-registers via inventory
- Uses Wry’s `with_asynchronous_custom_protocol`
- JSON-over-POST interface
- CORS preflight support
## 🔧 Usage
```rust
use wry_cmd::{command, use_wry_cmd_protocol};
#[derive(serde::Deserialize, Default)]
struct GreetArgs {
name: String,
}
#[derive(serde::Serialize, Default)]
struct GreetReply {
message: String,
}
#[command]
fn greet(args: GreetArgs) -> GreetReply {
println!("Greet command called with: {:?}", args.name);
GreetReply {
message: format!("Hello, {}!", args.name),
}
}
let wv = WebViewBuilder::new()
.with_asynchronous_custom_protocol("proto".to_string(), use_wry_cmd_protocol!("proto"))
.build(&window)
.expect("Failed to build WebView");
```
Then in JS:
```js
async function sendGreet() {
const name = document.getElementById("name").value;
// You can use `http://proto.greet` for Windows compatibility
// or `proto://greet` for other platforms.
const res = await fetch(`http://proto.greet`, {
method: "POST",
body: JSON.stringify({ name }),
headers: { "Content-Type": "application/json" },
});
const data = await res.json();
document.getElementById("response").textContent = data.error
? "Error: " + data.error
: data.message;
}
```
# AI Usage Disclaimer
Please note that AI has been used in order to properly document this crate.