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import txaio
txaio.use_twisted()
from twisted.internet import reactor
from twisted.internet.defer import inlineCallbacks
from twisted.internet.endpoints import TCP4ClientEndpoint
from twisted.application.internet import ClientService
from autobahn.wamp.types import ComponentConfig
from autobahn.twisted.wamp import ApplicationSession, WampWebSocketClientFactory
def add2(a, b):
print('add2 called: {} {}'.format(a, b))
return a + b
class MyAppSession(ApplicationSession):
def __init__(self, config):
ApplicationSession.__init__(self, config)
self._countdown = 5
def onConnect(self):
self.log.info('transport connected')
# lets join a realm .. normally, we would also specify
# how we would like to authenticate here
self.join(self.config.realm)
def onChallenge(self, challenge):
self.log.info('authentication challenge received')
@inlineCallbacks
def onJoin(self, details):
self.log.info('session joined: {}'.format(details))
yield self.register(add2, 'com.example.add2')
for i in range(10):
res = yield self.call('com.example.add2', 23, i)
self.log.info('result: {}'.format(res))
yield self.leave()
def onLeave(self, details):
self.log.info('session left: {}'.format(details))
self.disconnect()
def onDisconnect(self):
self.log.info('transport disconnected')
# this is to clean up stuff. it is not our business to
# possibly reconnect the underlying connection
self._countdown -= 1
if self._countdown <= 0:
try:
reactor.stop()
except ReactorNotRunning:
pass
if __name__ == '__main__':
txaio.start_logging(level='info')
# create a WAMP session object. this is reused across multiple
# reconnects (if automatically reconnected)
session = MyAppSession(ComponentConfig('realm1', {}))
# create a WAMP transport factory
transport = WampWebSocketClientFactory(session, url='ws://localhost:8080/ws')
# create a connecting endpoint
endpoint = TCP4ClientEndpoint(reactor, 'localhost', 8080)
# create and start an automatically reconnecting client
service = ClientService(endpoint, transport)
service.startService()
# enter the event loop
reactor.run()
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