Quick StartΒΆ
Simply create a producer, create a consumer, and start the server.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #!/usr/bin/env python3.5
import asyncio
import json
import time
from async_dispatch import Dispatcher, SubscriberInterface, PublisherInterface, Event
class BasicPublisher(PublisherInterface):
count = 0
async def produce(self):
cls = self.__class__
cls.count += 1
v = cls.count
return Event('test', time.time(), json.dumps({'value':v}))
class BasicSubscriber(SubscriberInterface):
listen_to_events = ['test']
def __init__(self):
self.total = 0
async def consume(self, event):
event_name, timestamp, payload = event
payload = json.loads(payload)
self.total += int(payload['value'])
def get_total(self):
return self.total
if __name__ == '__main__':
publisher = BasicPublisher()
subscriber = BasicSubscriber()
loop = asyncio.get_event_loop()
server = Dispatcher(publisher, subscriber, loop=loop)
loop.run_until_complete(server.start(max_events=5))
total = subscriber.get_total()
print("Total is %d" % total)
assert total == 15
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