# Custom Plugin add filter to search query by external access policies
**URL:** https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723
**Category:** Elasticsearch
**Created:** [October 2, 2021, 3:08am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723 "2021-10-02T03:08:39Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 2, 2021, 3:08am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/1 "2021-10-02T03:08:39Z")
Hi,
I'm wanting to create a custom plugin. The purpose is to make a rest call to an external service to apply access control polices to search requests. Is there any sample code or an article that would assist?
Appreciated
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### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 7, 2021, 2:45am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/2 "2021-10-07T02:45:17Z")
Hi,
I tried the example authorization engine in the examples. However unless I mis-understood it's functionality it doesn't seem to work. I can load the plugin. However being added to the role makes no difference to may access? Any further information regarding this example?
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### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 7, 2021, 2:46am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/3 "2021-10-07T02:46:24Z")
Just to clarify I'm refering to "security-authorization-engine" example
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### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 8, 2021, 5:20am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/4 "2021-10-08T05:20:52Z")
> [@David\_Sheard](#):
>
> security-authorization-engine
Hi,
So I got the security-authorization-engine example working with the test cases passing. However when I load into Elasticsearch it seems to make no difference ☹
I also converted it to a Maven project and set up as below. Am a missing something in the structure?
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### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 9, 2021, 12:11am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/5 "2021-10-09T00:11:31Z")
Hi,
Still no help from anyone ☹
As mentioned all test cases work but when I deploy it doesn't work. I've deployed the rescore plugin with no issues. Do I need to add anything to my yml file?
It deploys. Using against 7.15.0. I'm also using native realm, is that an issue? Wouldn't have thought so.
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### Author:  [@David\_Sheard](https://discuss.elastic.co/u/David_Sheard)
#### Post date: [October 9, 2021, 12:24am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/6 "2021-10-09T00:24:46Z")
Hi,
Finally worked out the solution. If anyone wants the answer let me know!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 6, 2021, 12:25am UTC](https://discuss.elastic.co/t/custom-plugin-add-filter-to-search-query-by-external-access-policies/285723/7 "2021-11-06T00:25:27Z")
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