---
title: supportedGrantTypes()
framework: authenticationservices
role: symbol
role_heading: Instance Method
path: authenticationservices/asauthorizationproviderextensionregistrationhandler/supportedgranttypes()
---

# supportedGrantTypes()

## Declaration

```swift
optional func supportedGrantTypes() -> ASAuthorizationProviderExtensionSupportedGrantTypes
```

## Mentioned in

Creating extensions that support Platform SSO

## See Also

### Instance Methods

- [protocolVersion()](authenticationservices/asauthorizationproviderextensionregistrationhandler/protocolversion().md)
- [registrationDidCancel()](authenticationservices/asauthorizationproviderextensionregistrationhandler/registrationdidcancel().md)