mqtt-users team mailing list archive

["andypiperuk@xxxxxxxxx" <andypiperuk@xxxxxxxxx>]

As an alternative to socket.io I'd just throw in SockJS - it may or may not
help here, but it seems to be emerging as a good alternative to socket.ioAFAIUI.

On the topic of streaming and HTTP etc I'll also throw
http://knolleary.net/2012/04/04/streaming-tweets-to-mqtt/ into the
discussion.

BTW, Cosm also already supports MQTT, and Nick has done a blog post on that
as well recently (albeit direct MQTT connection rather than HTTP-to...
which I know Roger has played with in the past)
http://knolleary.net/2012/06/08/bridging-mqtt-from-rsmb-to-cosm/

Also: Toby, consider this @mqttorg's official contribution to the
discussion =)

Andy

On Tue, Jun 12, 2012 at 1:53 PM, Dan Fish <dan@xxxxxxxxxx> wrote:

> Hi Toby
>
> Coincidentally I'm looking into this at the moment. I've decided to go
> down a node.js route and using the socket.io, express framework and
> mqtt.js.
> I'm currently reading up on the documentation (and resurrecting my
> javascript knowledge!). Hopefully this will all be lightweight enough to
> run on a raspberry pi.
>
> Dan
> Sent from my ASUS Eee Pad
>
> Toby Jaffey <toby@xxxxxxxxxxxx> wrote:
>
> >Hi,
> >
> >I'm interested to find out what MQTT to HTTP bridges/proxies exist and
> how they
> >work.
> >
> >Clearly, there's sometimes a need a need to provide access via web
> browsers to
> >MQTT brokers. But, MQTT and HTTP are fundamentally different in their
> outlook.
> >HTTP is a request response 1:1 while MQTT is asynchronous, event based
> pub sub.
> >
> >Beyond browsers, providing MQTT broker access over HTTP allows for
> integration
> >with existing services like Cosm's triggers, or ifttt.
> >
> >The two bridges I have found handle the problem quite differently:
> >Mosquitto's websocket bridge proxies raw MQTT over websockets - forcing
> the
> >client to implement MQTT.
> >
> >NJH's bridge (https://github.com/njh/mqtt-http-bridge) uses retained
> messages
> >to map to HTTP's GET/PUT CRUD semantics. But, doesn't provide any
> mechanism for
> >streaming messages.
> >
> >Are there other implementations?
> >Does anything like the "stateful bridge" described below exist?
> >
> >
> https://docs.google.com/document/d/1rODn8QzgbncB-EJg94Y-FWlsSgII0DxXOoBBZuc8Fvw/edit#
> >
> >Thanks.
> >
> >--
> >
> >
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-- 
Andy Piper | Farnborough, Hampshire (UK)
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