def publish(self, event_name: str, msg: Any) -> Any:
exchange = self.event_map.get_exchange_name(event_name)
queue = self.event_map.get_queue_name(event_name)
body = jsons.dumps(msg)
ch = self.connection.channel()
ch.exchange_declare(exchange=exchange, exchange_type='fanout', durable=True)
log_info('PUBLISH EVENT', exchange=exchange, routing_key=queue, body=body)
ch.basic_publish(
exchange=exchange,
routing_key=queue,
body=body.encode()
)
def on_rpc_request(ch, method, props, body):
decoded_body = body.decode()
log_info('GET RPC REQUEST', queue=queue, body=decoded_body)
args = jsons.loads(decoded_body)
result = handler(*args)
body = jsons.dumps(result)
# send reply
log_info('SEND RPC REPLY', exchange=exchange, routing_key=props.reply_to, correlation_id=props.correlation_id, body=body)
ch.basic_publish(
exchange='',
routing_key=props.reply_to,
properties=pika.BasicProperties(correlation_id=props.correlation_id),
body=body.encode()
)
if not auto_ack:
ch.basic_ack(delivery_tag=method.delivery_tag)
def publish(self, event_name: str, msg: Any) -> Any:
if event_name not in self.event_handler:
raise Exception(
'Event handler for "{}" is not found'.format(event_name))
log_info('PUBLISH EVENT', event_name=event_name, msg=msg)
self.event_handler[event_name](msg)
def on_rpc_response(ch: BlockingChannel, method, props, body):
if props.correlation_id == self.corr_id:
decoded_body = body.decode()
log_info('GET RPC REPLY', queue=reply_queue, correlation_id=self.corr_id, body=decoded_body)
self.result = jsons.loads(decoded_body)
ch.basic_ack(delivery_tag=method.delivery_tag)