identifierExists method
Implementation
@override
Future<PublicUserInfo> identifierExists(String identifier) async {
try {
final resultPromise = passage.app.userExists(identifier);
final jsObject = await js_util.promiseToFuture(resultPromise);
return PublicUserInfo.fromJson(jsObject);
} catch (e) {
throw PassageError.fromObject(
object: e, overrideCode: PassageErrorCode.identifierExistsError);
}
}