# "Change notification" to external applications - where should I start?

**URL:** <https://discuss.elastic.co/t/change-notification-to-external-applications-where-should-i-start/5910>\
**Category:** Elasticsearch\
**Created:** [November 18, 2011, 8:26am UTC](https://discuss.elastic.co/t/change-notification-to-external-applications-where-should-i-start/5910 "2011-11-18T08:26:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Thomas\_Peuss](https://avatars.discourse-cdn.com/v4/letter/t/22d042/32.png) [@Thomas\_Peuss](https://discuss.elastic.co/u/Thomas_Peuss)\
**Post date:** [November 18, 2011, 8:26am UTC](https://discuss.elastic.co/t/change-notification-to-external-applications-where-should-i-start/5910/1 "2011-11-18T08:26:37Z")

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Hello!

I want to start some work on [https://github.com/elasticsearch/elasticsearch/issues/1242](https://github.com/elasticsearch/elasticsearch/issues/1242)  
because we need such a functionality and don't want to poll the  
indices.

Where would I start to hook in to get the required information. I have  
seen that the statistics-part of elasticsearch has all the required  
information about new indexed documents (we don't care about deletes  
for now).

As a first start I want to implement a service that gives you freshly  
indexed documents per node/per index (next step for the whole  
cluster).

CU  
Thomas

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:48am UTC](https://discuss.elastic.co/t/change-notification-to-external-applications-where-should-i-start/5910/2 "2017-07-06T03:48:13Z")

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