# Interface: ServerMetadataHelpers [💗 Help the project](https://github.com/sponsors/panva) Support from the community to continue maintaining and improving this module is welcome. If you find the module useful, please consider supporting the project by [becoming a sponsor](https://github.com/sponsors/panva). *** ## Methods ### supportsPKCE() ▸ **supportsPKCE**(`method?`): `boolean` Determines whether the Authorization Server supports a given Code Challenge Method #### Parameters | Parameter | Type | Description | | ------ | ------ | ------ | | `method?` | `string` | Code Challenge Method. Default is `S256` | #### Returns `boolean`