Poem Rust

use poem::{Response, Route, Server, get, handler, http::header, listener::TcpListener};

const GIF: &[u8] = &[0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x01, 0x00, 0x01, 0x00, 0x80, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x21, 0xf9, 0x04, 0x01, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x02, 0x02, 0x44, 0x01, 0x00, 0x3b];

#[handler]
fn pixel() -> Response {
    Response::builder()
        .content_type("image/gif")
        .header(header::CACHE_CONTROL, "no-store")
        .body(GIF)
}

#[tokio::main]
async fn main() -> Result<(), std::io::Error> {
    let app = Route::new().at("/pixel.gif", get(pixel));
    Server::new(TcpListener::bind("0.0.0.0:8080")).run(app).await
}