Python AMQP RPC library
Earlgrey is a python library which provides a convenient way to publish and consume messages between processes using RabbitMQ. It is abstracted to RPC pattern.
How to use
# RPC methods class Task: @message_queue_task async def echo(self, value): return value # Client stub class Stub(MessageQueueStub[Task]): TaskType = Task # Server service class Service(MessageQueueService[Task]): TaskType = Task async def run(): route_key = 'any same string between processes' client = Stub('localhost', route_key) server = Service('localhost', route_key) await client.connect() await server.connect() result = await client.async_task().echo('any value') print(result) # 'any value' loop = asyncio.get_event_loop() loop.run_until_complete(run())
MessageQueueStub does not need exact
Task class which has full implementation of methods. It just needs signature of methods.
# client side. class Task: @message_queue_task async def echo(self, value): # Just signature. It is okay. Do not need implemetation. # But server must have its implementation pass
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