Using angular 1 services in Ionic 2 app

I realise that it’s probably best to convert angular 1 code to angular 2 before adding them to the application but wondering if there is a quicker way of doing it.

I have an Ionic 2 prototype application which we’re going to add a lot of different functionality so that the customer can choose which features to keep. Many of these features could make use of services which we developed for angular 1 sites so I’m looking for shortcut to get things running.

I’ve thought of rebuilding the prototype with ionic 1 but would rather get moving with the latest version.