public void onRegistrationFailed(WitnessRegistration registration, Exception error) {
            log.error("Witness registration failed: {}", registration.getRegistrationId(), error);
        }

        @Override
        public void onRegistrationExpired(WitnessRegistration registration) {
            log.warn("Witness registration expired: {}", registration.getRegistrationId());

     *
     * @return the heartbeat timeout
     */
    long getWitnessHeartbeatTimeout();

    /**
     * Gets the witness registration timeout in milliseconds.
     *
     * @return the registration timeout
     */
    long getWitnessRegistrationTimeout();

    /**
     * Gets the witness reconnect delay in milliseconds.
     *
     * @return the reconnect delay

The dependency injection system requires pre-registration of the dependencies and the dependencies are solved based on the declared types. So, it's not possible to declare more than one "component" that provides a certain type.

    /**
     * Timeout in milliseconds for witness heartbeat messages
     */
    protected long witnessHeartbeatTimeout = 120000; // 2 minutes
    /**
     * Timeout in milliseconds for witness registration
     */
    protected long witnessRegistrationTimeout = 300000; // 5 minutes
    /**
     * Delay in milliseconds before attempting witness reconnection
     */

mprovement title: '【第4回】FastAPIチュートリアル: toDoアプリを作ってみよう【管理者ページ改良編】' - author: ライトコードメディア編集部 author_link: https://rightcode.co.jp/author/jun link: https://rightcode.co.jp/blog/information-technology/fastapi-tutorial-todo-apps-authentication-user-registration title: '【第3回】FastAPIチュートリアル: toDoアプリを作ってみよう【認証・ユーザ登録編】' - author: ライトコードメディア編集部 author_link: https://rightcode.co.jp/author/jun link: https://rightcode.co.jp/blog/information-technology/fastapi-tutorial-todo-apps-model-building title: '【第2回】FastAPIチュートリアル:...