get OAuth Url
abstract fun getOAuthUrl(provider: OAuthProvider, redirectUrl: String? = defaultRedirectUrl(), url: String = "authorize", additionalConfig: ExternalAuthConfigDefaults.() -> Unit = {}): String(source)
Returns the url to use for oAuth
Parameters
provider
The provider to use
redirect Url
The redirect url to use
url
The url suffix.
For normal OAuth it would be "authorize".
For linking identities it would be "user/identities/authorize"