tiny_http Rust

// Synchronous, no async runtime.
use tiny_http::{Header, Response, Server};

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];

fn main() {
    let server = Server::http("0.0.0.0:8080").unwrap();
    for request in server.incoming_requests() {
        let is_pixel = request.url().split('?').next() == Some("/pixel.gif");
        let response = if is_pixel {
            Response::from_data(GIF)
                .with_header(Header::from_bytes("Content-Type", "image/gif").unwrap())
                .with_header(Header::from_bytes("Cache-Control", "no-store").unwrap())
        } else {
            Response::from_string("Not Found").with_status_code(404)
        };
        let _ = request.respond(response);
    }
}