curl -XPOST "https://localhost:9200/_plugins/_sql" -u admin:Hkdijeksk0! -k -d '{"query": "SELECT * FROM user WHERE userid=\"admin\""}' -H 'Content-Type: application/json'
curl -XPOST "https://localhost:9200/_plugins/_sql" -u admin:{password} -k -d '{"query": "SELECT * FROM ${index} WHERE ${field}=\"{userid}\""}' -H 'Content-Type: application/json'