async isConnected()

in src/lib/database.ts [79:102]

• 16 lines of code
• 2 McCabe index (conditional complexity)

  async isConnected(timeout: number = 5): Promise<boolean> {
    try {
      timeout = Math.min(timeout, 60) * 1000;
      // eslint-disable-next-line no-undef
      let timerId: NodeJS.Timeout;

      const timer = new Promise<boolean>((resolve) => {
        timerId = setTimeout(() => resolve(false), timeout);
      });

      // TODO: research if there's a lighter weight way to status a connection.
      const connectionCheck = this.db.listCollections();

      return Promise.race([connectionCheck, timer]).then(result => {
        clearTimeout(timerId);
        return !!result;
      });

    } catch (err) {
      // GoogleError: Total timeout of API google.firestore.v1.Firestore
      // exceeded 60000 milliseconds before any response was received.
      return false;
    }
  }