# Access claim per user space

**URL:** <https://community.auth0.com/t/access-claim-per-user-space/8852>\
**Category:** Get Help\
**Tags:** claims, authorization, groups, roles\
**Created:** [November 29, 2017, 11:22pm UTC](https://community.auth0.com/t/access-claim-per-user-space/8852 "2017-11-29T23:22:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nico\_goal](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/User_font_awesome.svg/768px-User_font_awesome.svg.png) [@nico\_goal](https://community.auth0.com/u/nico_goal)\
**Post date:** [November 29, 2017, 11:22pm UTC](https://community.auth0.com/t/access-claim-per-user-space/8852/1 "2017-11-29T23:22:12Z")

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I have a simple To-Do mobile application in Xamarin .NET using Auth0 authentication and it is consuming an [ASP.NET](http://ASP.NET) CORE Web API using Auth0 authorization.

**Application description:**

Every user who registers in my application get a “space” where they can create their own To-Do lists.

All users who are logged in have the possibility to search for “spaces” but can not see the To-Do lists within the space.

**Problem description:**

I want to have a button on the “space” description page saying “Ask for rights?” which should send a request to the owner of that space that allows the user access to the To-Do lists of that space.

**Questions:**

How can I implement such a role/group/claim based solution?

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [March 2, 2018, 5:57am UTC](https://community.auth0.com/t/access-claim-per-user-space/8852/2 "2018-03-02T05:57:35Z")

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