It's unclear what you mean by data transfer. You're charged based on whatever resources you consume according to the documented rates and your pricing plan, for both App Engine <https://cloud.google.com/appengine/pricing> and Firebase <https://firebase.google.com/pricing/>.
If these documents aren't specific enough, could you elaborate on your use case? On Friday, October 21, 2016 at 2:22:48 PM UTC-4, Chik Wah Ho wrote: > > For the *Data Transfer* between *APP Engine* and *Firebase*, how do we > estimate the charge or fee of the bill? Thanks! > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/545414a7-3dd4-4ea1-910f-4acedd8af749%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
