shuttle

Hello I am new to rust and here, Please help. here is my code, how can I use Shuttle? Thank you

#[rocket::main]
async fn main() -> Result<(), Error> {
    let pool = MySqlPoolOptions::new()
        .max_connections(7)
        .connect("mysql://my-datase -credentials")
        .await?;

    let _ = rocket::build()
        .mount("/api/v1", routes![hello_world])
        .manage(pool)
        .launch()
        .await.expect("Failed to start server or failed to connect to database");

    Ok(())
}