Feature/col 3 rewind interval #55
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mschristensen
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zknill
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Adds a SequenceResumer middleware that discards messages up until the attach point given by the sequence ID is reached. Can be used in conjunction with a sliding window re-orderer via the OrderedSequenceResumer middleware.
The SyncFunc now returns the sequenceID and stateTimestamp along with the model state snapshot. This is used by the model to rewind to the correct point in the stream.
In order to work around rewind's 100 message limit, we can use a history query with untilAttach to paginate back through messages until the target sequenceID boundary is reached. This has the additional benefit that enabling persisted history on the channel just works, allowing you to extend your state cache TTL.
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