ElasticSearch Search

official documentation

Search can be executed across indices and types, with query string as a parameter, or using a request body.

Search is broadcasted to all the index/indices shards; to limit the scope, you can use routing parameter - e.g. using user ID when searching through tweets by given user. The routing parameter may be multivalued, CSV.

Request Body

Request body uses Query DSL.

$ curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}'

{
    "_shards":{
        "total" : 5,
        "successful" : 5,
        "failed" : 0
    },
    "hits":{
        "total" : 1,
        "hits" : [
            {
                "_index" : "twitter",
                "_type" : "tweet",
                "_id" : "1", 
                "_source" : {
                    "user" : "kimchy",
                    "postDate" : "2009-11-15T14:12:12",
                    "message" : "trying out Elastic Search"
                }
            }
        ]
    }
}

Parameters

• timeout - search timeout, bounding the search request to be executed within the specified time; default no timeout
• from - the starting from index of the hits to return; default 0
• size - the number of hits to return; default 10
• search_type - the type of the search operation to perform - dfs_query_then_fetch, dfs_query_and_fetch, query_then_fetch, query_and_fetch; defaults query_then_fetch; see Search Type for more details on the different types of search that can be performed