In Pika or RabbitMQ, How do I check if any consumers are currently consuming?

Question

I would like to check if a Consumer/Worker is present to consume a Message I am about to send.

If there isn\'t any Worker, I would start s

Answer 1

I was just looking into this as well. After reading through the source and docs I came across the following in channel.py:

@property
def consumer_tags(self):
    """Property method that returns a list of currently active consumers

    :rtype: list

    """
    return self._consumers.keys()

My own testing was successful. I used the following where my channel object is self._channel:

if len(self._channel.consumer_tags) == 0:
        LOGGER.info("Nobody is listening.  I'll come back in a couple of minutes.")
        ...