Dirk,
Am 25.12.2014 um 18:50 schrieb Dirk Devriendt:
> First off, my compliments on a very promising and open project.
Thanks!
> I just discovered it and was thinking of using it at our next Raspberry
> Jam where the co-working space that hosts us asked if it's possible to
> make a digital self-service visitor desk in the lobby.
> visitor comes in > indicates who they're visiting > target gets alerted
> on his/her phone or at his/her desk
>
> I saw that event history is foreseen in WAMPv2 and planned(?) in
> crossbar, so I wanted to ask:
> - what is the current state and how/when is this expected to evolve in
> the future?
Features like from "last message on subscribe" up to full message
persistence / history is currently in "spec stage". But it's not yet
there .. neither in spec, nor in Crossbar.io (or any other router I am
aware).
> - what is the current recommended practice for catching up with "missed"
> messages and/or persisting/replaying events (e.g. in a DB?)
The idiom we use most often, e.g. for accessing a variable X residing in
some backend component is to expose X via a "get_x" WAMP procedure, plus
event "on_x" with value updates triggered from "set_x".
I do understand that this isn't quite the same as what router built-in
mechanisms could provide.
>
> -feel free to keep it short and/or point me to existing resources I may
> have missed-
> FWIW I fully support the clear separation between Autobahn and
>
crossbar.io :-)
;)
Cheers,
/Tobias
>
> Thanks!
> Dirk
>
> Note: I'm also looking at using crossbar at work as a logging /
> communication hub for a docker-based on-demand scientific simulation
> cluster we are building, but that's a story for a different time :-)
>
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