# REST API with external User and Group Management

**URL:** <https://forum.flowable.org/t/rest-api-with-external-user-and-group-management/1022>\
**Category:** Flowable Engine\
**Created:** [October 3, 2017, 7:51pm UTC](https://forum.flowable.org/t/rest-api-with-external-user-and-group-management/1022 "2017-10-03T19:51:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![German\_Gail](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.flowable.org/german_gail/32/338_2.png) [@German\_Gail](https://forum.flowable.org/u/German_Gail)\
**Post date:** [October 3, 2017, 7:51pm UTC](https://forum.flowable.org/t/rest-api-with-external-user-and-group-management/1022/1 "2017-10-03T19:51:22Z")

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Hi,

I have some projects working with my own UserManager and GroupManager implementations, under the embedded engine library approach.

I am implementing (For activiti)  
org.activiti.engine.impl.persistence.entity.UserManager;  
org.activiti.engine.impl.persistence.entity.GroupManager;

I want to use Flowable through the REST API, and I cannot find in the documentation how to implement an endpoint to “answer” these same queries (like in which groups does a user -by username- participates, etc). I guess that flowable needs from the external IDM

Is there a way to do it already or it will be delayed for future versions?