[zeromq-dev] HTTP -> 0MQ XREQ proxy example.

Marko Mikulicic marko.mikulicic at isti.cnr.it
Sun Mar 20 17:43:09 CET 2011

On 20 March 2011 16:22, Pieter Hintjens <ph at imatix.com> wrote:

> On Sun, Mar 20, 2011 at 3:09 PM, Marko Mikulicic
> <marko.mikulicic at isti.cnr.it> wrote:
> > So the focus is on using HTTP as a transport protocol, between zeromq
> peers,
> > not intended to be used as an interoperability solution, did I understand
> > correctly?
> Yes to the first part, but for me that precisely means

"interoperability", if the mapping is documented and reliable.

Sorry, I mean direct interoperability, as if the unmodified HTTP clients
were able to connect to http/0mq endpoints. For example imagine a SUB
endpoint listening on a http socket;
a http client like a browser or wget or whatever then connects and POSTs a
file which then can be interpreted by the SUB socket as a valid pubsub

On the other hand, a simple HTTP transport encapsulation working as a tunnel
of the 0mq protocol, would not allow this scenario; both the client and the
server have talk the underlying 0mq protocol, with bidirectional
communication. I didn't dig in the 0mq protocol internals but I guess there
is some kind of handshake to handle the identities (perhaps it's optional?).

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