oauthHandleCallback

suspend fun PipelineContext<Unit, ApplicationCall>.oauthHandleCallback(
    client: HttpClient,
    dispatcher: CoroutineDispatcher,
    provider: OAuthServerSettings,
    callbackUrl: String,
    loginPageUrl: String,
    configure: HttpRequestBuilder.() -> Unit = {},
    block: suspend (OAuthAccessTokenResponse) -> Unit
): Unit

Handle OAuth callback