ping-9.3-javascript.md

endpoint	ping
lang	javascript
es_version	9.3
client	@elastic/elasticsearch@9.3.0

Elasticsearch 9.3 ping endpoint (JavaScript example)

Use client.ping() to check whether the Elasticsearch server is reachable. Returns true if the server responds, false otherwise.

const alive = await client.ping();

if (alive) {
  console.log("Elasticsearch is available");
} else {
  console.log("Elasticsearch is not reachable");
}

Startup health check

Use ping at application startup to fail fast if Elasticsearch is unavailable:

const alive = await client.ping();
if (!alive) {
  console.error("Cannot connect to Elasticsearch — exiting");
  process.exit(1);
}