# Run a jar file before insert or before update

**URL:** <https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461>\
**Category:** Elasticsearch\
**Created:** [December 19, 2016, 2:43pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461 "2016-12-19T14:43:44Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rezaei121](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rezaei121/32/13979_2.png) [@rezaei121](https://discuss.elastic.co/u/rezaei121)\
**Post date:** [December 19, 2016, 2:43pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461/1 "2016-12-19T14:43:44Z")

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hi guys,  
i am need to run a jar file before insert or before update.  
i want change documents before insert or update.  
how do I do it?  
thank you.

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**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:** [December 19, 2016, 3:16pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461/2 "2016-12-19T15:16:42Z")

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You can have a look at ingest feature may be?

Hard to say if it will work for you as I don't understand what you are exactly trying to solve.

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<div class="post-metadata">

**Author:** ![rezaei121](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rezaei121/32/13979_2.png) [@rezaei121](https://discuss.elastic.co/u/rezaei121)\
**Post date:** [December 19, 2016, 3:39pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461/3 "2016-12-19T15:39:42Z")

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i use msgpack for faster and smaller transfer. " [http://msgpack.org/index.html](http://msgpack.org/index.html) "  
documents sent in the form of hex by client,  
and i need to unpack documents before insert or update.

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<div class="post-metadata">

**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:** [December 21, 2016, 9:42pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461/4 "2016-12-21T21:42:43Z")

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Do you have any issue by using JSON?  
Did you try [CBOR](http://cbor.io/)?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 18, 2017, 9:42pm UTC](https://discuss.elastic.co/t/run-a-jar-file-before-insert-or-before-update/69461/5 "2017-01-18T21:42:45Z")

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