I'm having a problem passing authentication headers through to my functions. The auto-generated mutations work (e.g. allTypeName()) as expected with an auth token tho, am i missing something?

you should be able to access the

nodeId

embedded in the auth token in a function, here's an example: https://github.com/graphcool-examples/functions/blob/master/payment-and-delivery/stripe-connect-standard-account/fetchStripeAccountId.js#L14

thank you @nilan that sorted everything 🙂