# login_config · FT4 Rell API · Chromia Docs (concept)

> @extendable function login_ config(): map<text, _login_config > This function can be extended by users to add custom login configurations. Throws if any ex

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.auth/login_config/

FUNCTION

# login\_config

```signature
@extendable function login_config(): map<text, _login_config>
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/auth/login.rell#lines-49)

This function can be extended by users to add custom login configurations.

Throws if any extension of this function throws.

**Returns**

a map of `<name, _login_config>` - the name allows the users to pick one of the
configs

**See Also**

* [\_login\_config](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.auth/_login_config/) — for more information about login configurations.
* [add\_login\_config](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.auth/add_login_config/) — for an example implementation of this extension.
* `external.auth.get_login_config` — for a way to retrieve a specific `_login_config`

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.core.auth/login_config.html)Generated API reference, mirrored from the live docs