elasticsearchHow do I get the version of Elasticsearch I am using?

To get the version of the Elasticsearch you are using, you can use the cat API. This API allows you to retrieve the version information about the Elasticsearch instance.

Example

curl -XGET 'localhost:9200'

Output example

{
  "name" : "elasticsearch-node",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "v-HlwfvVQbq7KjE_zVfQ",
  "version" : {
    "number" : "7.3.2",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "e9ccaed468e2fac2275a3761849cbee64b39519f",
    "build_date" : "2019-09-06T14:40:30.409026Z",
    "build_snapshot" : false,
    "lucene_version" : "8.2.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

In the output, the version of the Elasticsearch instance is 7.3.2.

Code explanation

1. curl -XGET 'localhost:9200' - Retrieves the version information about the Elasticsearch instance.

Helpful links

1. Elasticsearch - Get API

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