deb-python-autobahn/examples/asyncio/wamp/rpc/decorators/backend.py

76 lines
2.6 KiB
Python

###############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) Crossbar.io Technologies GmbH
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
###############################################################################
from os import environ
import datetime
import asyncio
from autobahn import wamp
from autobahn.asyncio.wamp import ApplicationSession, ApplicationRunner
class Component(ApplicationSession):
"""
An application component registering RPC endpoints using decorators.
"""
async def onJoin(self, details):
# register all methods on this object decorated with "@wamp.register"
# as a RPC endpoint
##
results = await self.register(self)
for res in results:
if isinstance(res, wamp.protocol.Registration):
# res is an Registration instance
print("Ok, registered procedure with registration ID {}".format(res.id))
else:
# res is an Failure instance
print("Failed to register procedure: {}".format(res))
@wamp.register(u'com.mathservice.add2')
def add2(self, x, y):
return x + y
@wamp.register(u'com.mathservice.mul2')
def mul2(self, x, y):
return x * y
@wamp.register(u'com.mathservice.div2')
def square(self, x, y):
if y:
return float(x) / float(y)
else:
return 0
if __name__ == '__main__':
runner = ApplicationRunner(
environ.get("AUTOBAHN_DEMO_ROUTER", u"ws://127.0.0.1:8080/ws"),
u"crossbardemo",
)
runner.run(Component)