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Questions tagged [crossbar]

Crossbar.io unified application router

Crossbar.io unified application router

Crossbar.io is an open-source middleware software built on the WAMP application routing protocol that allows developers to create distributed systems, composed of application components which are loosely coupled, communicate in (soft) real-time and can be implemented in different languages.

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Connection lost whatever the long poll's settings with crossbar.io

I'm using crossbar to test the websockets and the long polling. But each time I try using long-polling as default transport, whatever the settings I set, I get a "connection lost" every 2 seconds in my console. By the way, it works perfectly with…
Neilujd
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Possible to transmit files using Crossbar.io and WAMP?

Is it possible to use WAMP / Crossbar to send small simple files, such as .txt? At the moment, I have this snippet of tutorial code in Python: def sendSketch(self, datastring): if datastring == "1": payload = b'1' How can I get Python…
sscirrus
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It's possible to list subscribers in autobahn.ws?

Currently I'm developing consoles in my webapp displaying user's running *nix application log (game servers) and I just want to make sure that one user can't access other user console by guessing topic name. I'm using random generated string of 16…
SystemZ
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connecting autobahn websocket server to crossbar.io router

I have an application that connects to a web page that sends and receives text strings over a websocket on port 1234. I do not have access to the front end code, so I cannot change the HTML front end code. I created an autobahn server with a class…
Alan Yorinks
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Where is the crossbar subscription / state store?

When subscriptions are created and maintained by crossbar where are they stored? I did a quick look through the source code and think they are all stored in local process memory. Is that right? What is the horizontal scale out model if stuff is…
Paul Fryer
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Notify to other application instance running on different machine

I am running Django application on multiple machines say m1, m2, m3. all of them are using centralized database hosted on my_db_host.com. I want to notify to m2, m3 instances from m1 on particular action/activity. I have explored crossbar.io, but…
Raghvendra Parashar
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WSGI compliant component with web socket client?

I'm trying to integrate a RESTful responder in a Crossbar application, for which the best fit seems to be a WSGI service. This service ideally should be part of the rest of the pub/sub infrastructure, being able to receive WAMP events on the one…
deceze
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Dynamically add new guest worker with crossbar.io

I was thinking about if crossbar.io is able to dynamically add guest workers when a new file is available in the watch directory. And I could not find an answer in the crossbar.io documentation. It is advertising with Crossbar.io has a multi-node…
sbejga
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Crossbar.io - Restrict user to subscribe to only two topics

I had seen in the Crossbar.io documentation, that we can set role to publish only to specific topic. But how can I set a role to publish exactly matching two topics rather than pattern based matching.
Kamalakannan J
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Logging WAMP worker Trace Back Error

I have been trying to debug Remote Procedure Calls for WAMP (Web Application Messaging Protocol) based python components. For example: Front end (browser) session.call('math.add2', [2, 'two']); Back end (python) @wamp.register("math.add2") def…
Eddie
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Using Interpreters from the VirtualEnv

I have started experimenting with Crossbar and WAMP (Web Apps Messaging Protocol) and Im in love with this stuff in just a few weeks time. I answered this stack overflow question (Debugging Crossbar.io app in IntelliJ) as well, however, I have a of…
Eddie
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Purpose of Controller in WAMP (Web Apps Messaging Protocol) routing

Im new to WAMP (Web Apps Messaging Protocol) routing. So please forgive me if my question sounds too dumb. It is a beginners question. I don't quite understand what exactly controller is. I know what controller is from a normal Model-View software…
Eddie
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Pipe program stdout to a crossbar.io router

How can I send the stdout of a compilation process to a crossbar.io-Router? I am working on a travis-like continuous-integration-system for compiling Github-hosted LaTeX documents/projects. The server receives a POST from Github and starts the…
Finwood
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Autobahn Application Runner is not running Apps

Im pretty new to Autobahn and WAMP (Web Apps Messaging Protocol). Im just creating a simple Application Component based on http://autobahn.ws/python/wamp/programming.html and…
Eddie
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many callees with the same set of functions in crossbar.io

My project consists in a crossbar.io router with a python component, to wich many python callees will register the same set of functions. Lets think of a network of IoT light dimmers, each one will register the same dimm_light(value) function and…
DenJohX
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