The primary problem is that the developer payload field is limited in size. Whatever data you put there has to travel through our entire billing system.
Save the content to a datastore somewhere (either on-device or on a third-party server), then put the record ID in the developer payload field and you'll be fine. -- Trevor Johns Developer Programs Engineer, Android http://developer.android.com On Wed, Feb 2, 2011 at 2:11 PM, tomgibara <[email protected]> wrote: > I've just finished reading the preliminary documentation for in-app > billing. > > If I've understood correctly, as part of the billing request you can > supply: > > * ITEM_ID which is limited to a small number of pre-registered product > ids > * DEVELOPER_PAYLOAD unconstrained - but with caveats? > > and these are the only two pieces of data you can send to identify the > product being purchased. But even the DEVELOPER_PAYLOAD appears to be > off-limits; the documentation contains the following (rather cryptic) > advice: > > We recommend that you do not use this field to send data or content. > > I take this to mean product data/content, but that's no more than a > guess, and if that's the correct interpretation, why? The result seems > to be that you can't sell individuated items. > > I was hoping to use the in-app billing system to allow purchases of > dynamically generated designs from my forthcoming Metaglow > application, but this doesn't appear to be possible without operating > some sort of 'credits purchase' system which I think would provide a > very poor user experience and which isn't what I want to give users. > > Can anyone shed light on this? > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
