rabbitmq-tutorials/python/rpc_client.py
mrKazzila 336420b5ee
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2024-01-10 13:31:43 -08:00

52 lines
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Python
Executable File

#!/usr/bin/env python
import uuid
import pika
class FibonacciRpcClient(object):
def __init__(self):
self.connection = pika.BlockingConnection(
pika.ConnectionParameters(host="localhost"),
)
self.channel = self.connection.channel()
result = self.channel.queue_declare(queue="", exclusive=True)
self.callback_queue = result.method.queue
self.channel.basic_consume(
queue=self.callback_queue,
on_message_callback=self.on_response,
auto_ack=True,
)
self.response = None
self.corr_id = None
def on_response(self, ch, method, props, body):
if self.corr_id == props.correlation_id:
self.response = body
def call(self, n):
self.response = None
self.corr_id = str(uuid.uuid4())
self.channel.basic_publish(
exchange="",
routing_key="rpc_queue",
properties=pika.BasicProperties(
reply_to=self.callback_queue,
correlation_id=self.corr_id,
),
body=str(n),
)
self.connection.process_data_events(time_limit=None)
return int(self.response)
fibonacci_rpc = FibonacciRpcClient()
print(" [x] Requesting fib(30)")
response = fibonacci_rpc.call(30)
print(f" [.] Got {response}")