Share-extension Questions

I'm setting up a shareextension in ios and want to use the firebasesdk to upload data direct instead of using

When writing an ios extension for an app, is it possible to share the app's current parse login session with the ios extension? ios

I've searched around this title, but didn't find any appropriate information. i've found ways to make network request that sends it's result to

I am trying to create an ios share extension to share contacts using the following code: let contacttype = "public.vcard"