Send message

curl -XPOST "http://localhost:9200/my-first-index/message" -d'
  {
          "message": "hello!"
  }' \
  -H "Content-Type: application/json" \
  -u elastic:changeme

Search

curl -XPOST "http://localhost:9200/_search" -d'
  {
     "query": {
        "query_string": {
            "query": "hello"
          }
       }
  }' \
  -H "Content-Type: application/json" \
  -u elastic:changeme | jq