Elasticsearch : Create request for last 15 min with java?

I want to create a request that transmits me all the documents that keyword like "shutdown" for last 15min and one hours

Any advice will be highly appreciated!!!

I'd use the scroll API with a Range query on the date field using now notation: now/m and now/m-15m

https://www.elastic.co/guide/en/elasticsearch/reference/2.3/common-options.html#date-math