Updating our routes to use real CRUD operations

main.rs

#[post("/", data = "<hero>")]
fn create(hero: Json<Hero>, connection: db::Connection) -> Json<Hero> {
    let insert = Hero { id: None, ..hero.into_inner() };
    Json(Hero::create(insert, &connection))
}

#[get("/")]
fn read(connection: db::Connection) -> Json<Value> {
    Json(json!(Hero::read(&connection)))
}

#[put("/<id>", data = "<hero>")]
fn update(id: i32, hero: Json<Hero>, connection: db::Connection) -> Json<Value> {
    let update = Hero { id: Some(id), ..hero.into_inner() };
    Json(json!({
        "success": Hero::update(id, update, &connection)
    }))
}

#[delete("/<id>")]
fn delete(id: i32, connection: db::Connection) -> Json<Value> {
    Json(json!({
        "success": Hero::delete(id, &connection)
    }))
}