# Registry

This module discovers auth providers and exposes them to the UI/API.

{% tabs %}
{% tab title="End users" %}

### What it does

* discovers `providers/auth/_auth_*.py`
* groups providers for UI rendering
* exposes provider manifests for the UI/API

### When things break

**A provider doesn’t show up**

* import fails
* module doesn’t expose a provider instance/class
* manifest is invalid

**Provider shows up, but UI is weird**

* `html()` output is broken
* grouping rules changed
  {% endtab %}

{% tab title="Power users" %}

### Code map

* `providers/auth/registry.py`

### Public API

* `auth_providers_manifests()`
* `auth_providers_html()`

### Discovery rules (high level)

* find `_auth_*.py`
* import the module
* look for:
  * module-level `PROVIDER`, or
  * a class with `manifest()` (instantiated with no args)

<details>

<summary>Discovery flow (diagram)</summary>

```mermaid
flowchart LR
  UI[UI/API] --> R[auth.registry]
  R -->|discover _auth_*.py| M[import modules]
  M --> P[provider instance/PROVIDER]
  P --> MAN[manifest()/html()]
  MAN --> UI
```

</details>
{% endtab %}
{% endtabs %}


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