# Implement single sign in

You can use Glu to implement a single sign in for users across all the touch points, your website, app or in-venue.

Once the user is logged in and authorized, you're able to query our [OAuth API](/docs/getting-started/authentication/oauth.md) giving access to the users membership (Tier, status, benefits), registered gift cards, credit accounts and more.

{% stepper %}
{% step %}

### Create your OAuth client

Ensure you've created your OAuth client and you're comfortable creating, storing and refreshing access and refresh tokens, [get started here.](/docs/getting-started/authentication/oauth.md)
{% endstep %}

{% step %}

### Configure the look and design of the login page

The branding and design is created through the [theme](https://admin.glu.io/user/select_organisation?route=admin_brand_index) and [store](https://admin.glu.io/user/select_organisation?route=admin_store_index) settings.
{% endstep %}

{% step %}

### Send the user to the OAuth

You'll want to craft the OAuth link to send the user to outlined [here](/docs/getting-started/authentication/oauth.md#authorizing-as-a-member) and ensure the redirect\_uri returns them back to you, once they've authorized your access you can start to access data about the user.
{% endstep %}
{% endstepper %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://glu.gitbook.io/docs/use-cases/implement-single-sign-in.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.