Command
curl -X GET 'http://localhost:9200/_cluster/health?pretty'
Examples
Cluster health with shard details
curl -X GET 'http://localhost:9200/_cluster/health?level=shards&pretty'
curl -X GET 'http://localhost:9200/_cluster/health?pretty'
Cluster health with shard details
curl -X GET 'http://localhost:9200/_cluster/health?level=shards&pretty'