Ubuntu Manpage: amqp-consume - Consume messages from a queue on an AMQP server

NAME

       amqp-consume - Consume messages from a queue on an AMQP server

SYNOPSIS


       amqp-consume [OPTION...] {command} [args...]

DESCRIPTION

       amqp-consume consumes messages from a queue on an AMQP server. For each message that arrives, a receiving
       command is run, with the message body supplied to it on standard input.

       amqp-consume can consume from an existing queue, or it can create a new queue. It can optionally bind the
       queue to an existing exchange.

       By default, messages will be consumed with explicit acknowledgements. A message will only be acknowledged
       if the receiving command exits successfully (i.e. with an exit code of zero). The AMQP “no ack” mode
       (a.k.a. auto-ack mode) can be enable with the -A option.

OPTIONS

-q, --queue=queue name
The name of the queue to consume messages from.

If the --queue option is omitted, the AMQP server will assign a unique name to the queue, and that
server-assigned name will be dixsplayed on stderr; this case implies that an exclusive queue should
be declared.

-e, --exchange=exchange name
Specifies that an exclusive queue should be declared, and bound to the given exchange. The specified
exchange should already exist unless the --exchange-type option is used to request the creation of an
exchange.

-r, --routing-key=routing key
The routing key for binding. If omitted, an empty routing key is assumed.

-d, --declare
Forces an exclusive queue to be declared, even when it otherwise would not be. That is, when a queue
name is specified with the --queue option, but no binding to an exchange is requested with the
--exchange option. Note: this option is deprecated and may be removed in a future version, use the
--exclusive option to explicitly declare an exclusive queue.

-x, --exclusive
Declared queues are non-exclusive by default, this option forces declaration of exclusive queues.

-A, --no-ack=routing key
Enable “no ack” mode: The AMQP server will unconditionally acknowledge each message that is
delivered, regardless of whether the target command exits successfully or not.

-c, --count=limit
Stop consuming after the given number of messages have been received.

-p, --prefetch-count=limit
Request the server to only send limit messages at a time.

If any value was passed to --count, the value passed to --prefetch-count should be smaller than that,
or otherwise it will be ignored.

If -A/--no-ack is passed, this option has no effect.

EXAMPLES

       Consume messages from an existing queue “myqueue”, and output the message bodies on standard output via
       cat:

               $ amqp-consume -q myqueue cat

       Bind a new exclusive queue to an exchange “myexch”, and send each message body to the script myscript,
       automatically acknowledging them on the server:

               $ amqp-consume -A -e myexch ./myscript

AUTHOR