amqp-consume (1) Linux Manual Page
amqp-consume – Consume messages from a queue on an AMQP server
Synopsis
- amqp-consume [OPTION…] {command} [args…]
Description
amqp-consumeamqp-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-publish -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