# ElasticSearch \_optimize not working **URL:** \ **Category:** Elasticsearch\ **Created:** [January 19, 2018, 4:55am UTC](https://discuss.elastic.co/t/elasticsearch-optimize-not-working/116159 "2018-01-19T04:55:20Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![gautam\_gro](https://avatars.discourse-cdn.com/v4/letter/g/b9e5f3/32.png) [@gautam\_gro](https://discuss.elastic.co/u/gautam_gro)\ **Post date:** [January 19, 2018, 4:55am UTC](https://discuss.elastic.co/t/elasticsearch-optimize-not-working/116159/1 "2018-01-19T04:55:20Z")
I am unable to call \_optimize api as per documentation of elastic search. Error "Request Body is required" What do we need to send in Request Body? I have tried calling api using Curl and fiddler both. Please provide sample request for\_optimize api? ElasticSearch version 1.6 I have already created an index with name 'testindex' C:\curl-7.53.1\src\>curl -XPOST localhost:9200/testindex/\_optimize ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [January 19, 2018, 5:58am UTC](https://discuss.elastic.co/t/elasticsearch-optimize-not-working/116159/2 "2018-01-19T05:58:02Z")
Version 1.6 or version 6? If the later, the API name is wrong. See [https://www.elastic.co/guide/en/elasticsearch/reference/6.1/indices-forcemerge.html](https://www.elastic.co/guide/en/elasticsearch/reference/6.1/indices-forcemerge.html) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 16, 2018, 5:58am UTC](https://discuss.elastic.co/t/elasticsearch-optimize-not-working/116159/3 "2018-02-16T05:58:07Z")
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