hey folks,
for now we have two different XEPs that allowing xmpp-servers to store
messages that being sent while client was not available. XEP 0013 says
that it's not very nice to flood all the messages on the client when
it's becoming available, rather it advices to provide a way to discover
such messages and query the necessary ones (and it's becoming something
like inbox. the implementation is not the best to me, but it still
nice), the XEP-0160 vice-versa says that we need to send all the
messages when client has became available. And there is a good reason
for that again: that way clients don't need any extra support of the
offline storage.
Ok, we've seen that both XEPs cover some good usecase. But how to
combine them? Can the xmpp server support both of them? I don't see a
way for it to do that: if it supports 160 it needs to send all the
messages immediately on client's presence but according to 13 it can't
do that and I don't see any possibility for server to know which
behaviour is the best for the client.
If server will support only 13, a big number of clients won't be able to
obtain offline messages, but the 13 is still pretty nice to me (I just
would want to add some more queries compatibility or even maybe combine
it with MAM?). So, according to all these words above, what's the best
way to me to implement such an inbox offline storage of messages?
Thanks.
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