rust rocket读取自定义配置

Rocket.toml

[default.app]
meili_url = "http://host:port/"
meili_master_key = "key"

main.rs

#[derive(Serialize, Deserialize, Clone)]
#[serde(crate = "rocket::serde")]
struct AppConfig {
  meili_url: String,
  meili_master_key: String,
}
let fairing = AdHoc::on_ignite("load app config!", |rocket| async move {
let app_config = match rocket.figment().focus("app").extract::<AppConfig>() {
  Ok(a) => a,
  Err(e) => {
     panic!("load app config error:{:?}", e);
  }
};
let client = Client::new(app_config.meili_url, Some(app_config.meili_master_key));
  rocket.manage(client)
});
rocket::build()
  .attach(fairing)