App wrapper on top of ApplicationRunner

From: https://groups.google.com/forum/#!topic/autobahnws/lmztderi6N4

What I think is the biggest adoption issue, however, is the API. Autobahn should have a small cost of entry, and right now it doesnt. The hello world is not only hard to write using the documentation, but quite scary :

  from  twisted.python  import  log
  from  twisted.internet.defer  import  inlineCallbacks

  from  autobahn.twisted.wamp  import  ApplicationSession
  from  autobahn.twisted.wamp  import  ApplicationRunner


  class  ListenForEvent(ApplicationSession):


       def  __init__(self, config):
           ApplicationSession.__init__(self)
           self.config  = config

       def  onConnect(self):
           self.join(self.config.realm)


       @inlineCallbacks
       def  onJoin(self, details):
           callback =lambda  x: log.msg("Received event %s"  %  x)
           yield  self.subscribe(callback,'un_evenement')


  if  __name__ =='__main__':
      runner = ApplicationRunner(endpoint="tcp:127.0.0.1:8080",
                                 url="ws://localhost:8080/ws",
                                 realm="realm1")
      runner.run(ListenForEvent)

We need a simplified wrapper for that, that can be used for simple use case : small applications, tests, etc. In the same fashion that flask and bottle make web programming much easier than Django. I’m suggesting to add something like this :

  from  autobahn.app  import  App

  app = App(url="ws://localhost:8080/ws")

  @event("event_name")
  def  handle(details):
       app.log("Received event %s"  %  details)

  if  __name__ =='__main__':
      app.run()

Sane defaults, doesn’t not cover all the use cases, but it’s enought for 80% of the dev. The goal is not to replace the other API, but rather offer something higher level we can show of in the first page of the documentation that would make people started quickly.

[oberstet]

subseded/fixed in https://github.com/crossbario/autobahn-python/issues/964

[petercsmith]

@DenJohX Agreed, not being able to automatically reconnect a python client (using ApplicationRunner) to crossbar.io is blocking me from using Autobahn. Is there a workaround?