IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Root API

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Root API

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The Elasticsearch API’s base url returns its basic build, version, and cluster information.

$response = $client->info();

resp = client.info()
print(resp)

response = client.info
puts response

res, err := es.Info()
fmt.Println(res, err)

const response = await client.info();
console.log(response);

GET /

Prerequisites

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If the Elasticsearch security features are enabled, you must have the monitor, manage, or all cluster privilege to use this API.

Response body

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name: The responding Node’s name.
cluster_name: The responding Cluster’s name.
cluster_uuid: The responding Cluster’s uuid as confirmed by Cluster State.
version: (object) Contains information about the running version of Elasticsearch. + properties of version

Details

number: Version number of responding Elasticsearch release.
build_flavor: Build flavor, e.g. default.
build_type: Build type corresponding to how <<install-elasticsearch,Elasticsearch was installed>, e.g. docker, rpm, tar.
build_hash: Elasticsearch’s Git commit’s SHA hash.
build_date: Elasticsearch’s Git commit’s date.
build_snapshot: If Elasticsearch’s build was from a snapshot.
lucene_version: Version number of Elasticsearch’s <<https://archive.apache.org/dist/lucene/java/,underlying Lucene software>>.
minimum_wire_compatibility_version: Minimum node version with which the responding node can communicate. Also minimum version from which you can perform a Rolling Upgrade.
minimum_index_compatibility_version: Minimum index version with which the responding node can read from disk.

Examples

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The API returns the following response:

{
  "name": "instance-0000000000",
  "cluster_name": "my_test_cluster",
  "cluster_uuid": "5QaxoN0pRZuOmWSxstBBwQ",
  "version": {
    "build_date": "2024-02-01T13:07:13.727175297Z",
    "minimum_wire_compatibility_version": "7.17.0",
    "build_hash": "6185ba65d27469afabc9bc951cded6c17c21e3f3",
    "number": "8.12.1",
    "lucene_version": "9.9.2",
    "minimum_index_compatibility_version": "7.0.0",
    "build_flavor": "default",
    "build_snapshot": false,
    "build_type": "docker"
  },
  "tagline": "You Know, for Search"
}

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