Using a range query/filter

Searching/filtering by range is a very common scenario in a real world application. Some standard cases are as follows:

• Filtering by range numeric value (that is, Price, size, ages, and so on)

• Filtering by date (that is, events of 03/07/12 can be a range query from 03/07/12 00:00:00 and 03/07/12 24:59:59)

• Filtering by term (that is, from A to D)

Getting ready

You need a working ElasticSearch cluster, an index "test" (refer to the next chapter to learn how to create an index), and basic knowledge of JSON.

How to do it...

For executing a range query/filter, we need to perform the following step:

1. Considering the sample data of previous examples which contains an integer field position. Using it to execute a query for filtering positions between 3 and 5, we will have:

   curl -XPOST 'http://127.0.0.1:9200/test-index/test-type/_search' -d '{
       "query": {
           "filtered": {
               "filter": {
                   "range" : {
                     "position" : { 
                 ...