How to do Case Insensitive Search on ElasticSearch?

Question

I want to search data from Elastic Search Index with Case Insensitivity. For a example the word "Cat" can be search from "cat" ,"caT" ,"CAT" etc..

Please guide me to find a solution for this.

Answer 1

If your field is analyzed, you can use match Query

{
"match" : {
    "message" : "cat"
    }
 }