Operations and cluster health

Health checks and cluster visibility.

HTTP health endpoints

GET /healthz — process liveness only.
GET /api/health — JSON payload describing the local node and connected cluster members.

Use /api/health to confirm which BEAM node handled a request and which peers it can currently see through libcluster.

Presence and client counts

How Phoenix Presence surfaces member counts to subscribers and the SDK.

JavaScript

Browser and Node.js clients: @cachepuppy/core, @cachepuppy/react, and the admin HTTP API.