Requesting changes from a server

[Alan McKean]

My current app, using Core Data, tracks the last sequence number and requests changes on each launch. I don't see a changes request in the API for Couchbase Lite. Is there a way to request changes since a sequence number?

[Jens Alfke]

On Feb 10, 2014, at 4:02 PM, Alan McKean <alanm...@me.com> wrote:

My current app, using Core Data, tracks the last sequence number and requests changes on each launch. I don't see a changes request in the API for Couchbase Lite. Is there a way to request changes since a sequence number?

The native API doesn't have a direct equivalent of the _changes feed from the REST API. 

In the latest revisions on the master branch (but not in beta 2) you can create your own equivalent by defining a view whose key is the sequence number of the document; the map block would look like

emit(doc[@"_local_seq"], nil);

Then you can query the view with the startKey being one more than the last sequence you saw.

This support didn't make it into beta 2 (the "_local_seq" key isn't available in the map function) but will be in the GA release.

—Jens