Elasticsearch API 03 - Query DSL

Introducing the Query Language

Elasticsearch provides a JSON-style domain-specific language that you can use to execute queries. This is referred to as the Query DSL. The query language is quite comprehensive and can be intimidating at first glance but the best way to actually learn it is to start with a few basic examples.

If size is not specified, it defaults to 10:

POST localhost:9200/bank/_search?pretty
{
  "query": { "match_all": {} },
  "size": 1
}

Return documents 11 through 20:

 POST localhost:9200/bank/_search?pretty
 {
   "query": { "match_all": {} },
   "from": 10,
   "size": 10
 }

Sort results by account balance in descending order:

 POST localhost:9200/bank/_search?pretty
 {
   "query": { "match_all": {} },
   "sort": { "balance": { "order": "desc" } }
 }