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This is the command amqp-consume that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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:" 10

$
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:" 10

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

See also


librabbitmq-tools(7) describes connection-related options common to all the
RabbitMQ C Client tools.

amqp-consume(1)

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