Is there a built-in healthcheck, or is one planned?

[Venatum]

Hi 👋

We're using the KurrentDB Node.js client in a production environment and we need a reliable way to check whether the connection to Kurrent is healthy

We currently use the following workaround, but we're not confident it's the right approach:

public async isUp(timeout = 3000): Promise<boolean> {
  const ac = new AbortController();
  const timer = timeout > 0 ? setTimeout(() => ac.abort(), timeout) : null;
  try {
    await this.kurrentClient.listAllPersistentSubscriptions({
      deadline: Date.now() + timeout,
    });
    return true;
  } catch {
    return false;
  } finally {
    if (timer) clearTimeout(timer);
  }
}

Using listAllPersistentSubscriptions as a ping feels hacky, it's a side-effectful call that requires the persistent subscriptions feature to be available, and it may not accurately reflect the actual health of the connection...

A few questions:

• Is there a dedicated healthcheck method (or low-overhead RPC call) available in the client that I may have missed?
• Is there a getServerInfo / ping / checkHealth equivalent somewhere in the API?
• If not, is a healthcheck utility on the roadmap?

KurrentDB exposes a /health/live HTTP endpoint, would it make sense to have the client expose a checkHealth() method backed by that, or by the gRPC equivalent?

Thanks! 🙏