RabbitMQ creating queues and bindings from command line

Question

If I have RabbitMQ installed on my machine, is there a way to create a message queue from the command line and bind it to a certain exchange without using a client?

I

Answer 1

Walkthrough to Create and delete a queue in RabbitMQ:

I couldn't find a commandline command to do it. Here is how I did it in code with java.

Rabbitmq-server version 3.3.5 on Ubuntu.

List the queues, no queues yet:

sudo rabbitmqctl list_queues
[sudo] password for eric:
Listing queues ...
...done.

Put this in CreateQueue.java

import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.Channel;
import java.util.*;
public class CreateQueue {
  public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    Map<String, Object> args = new HashMap<String, Object>();
    args.put("x-message-ttl", 60000);
    channel.queueDeclare("kowalski", false, false, false, args);
    channel.close();
    connection.close();
  }
}

Supply the jar file that came with your rabbitmq installation:

I'm using rabbitmq-client.jar version 0.9.1, use the one that comes with your version of rabbitmq.

Compile and run:

javac -cp .:rabbitmq-client.jar CreateQueue.java
java -cp .:rabbitmq-client.jar CreateQueue

It should finish without errors, check your queues now:

sudo rabbitmqctl list_queues
Listing queues ...
kowalski        0
...done.

the kowalski queue exists.

Answer 2

Here is a more minimal Python example, taken from the RabbitMQ Python tutorial.

First, install pika:

sudo easy_install pika
# (or use pip)

This is all you need to send a message to localhost:

import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

channel.queue_declare(queue='test-queue')
channel.basic_publish(exchange='', routing_key='test-queue', body='Hello World!')

Answer 3

helps to bind the exchange while you're at it:

channel.queue_bind(queueName, exchange)

C-;

Answer 4

Maybe a little late to the party but I've done so using CURL.

For queues:

curl -i -u RABBITUSER:RABBITPASSWORD -H "content-type:application/json" \
-XPUT -d'{"durable":true}' \
http://192.168.99.100:15672/api/queues/%2f/QUEUENAME

And for bindings

curl -i -u RABBITUSER:RABBITPASSWORD -H "content-type:application/json" \
-XPOST -d"{\"routing_key\":\"QUEUENAME\"}" \
http://192.168.99.100:15672/api/bindings/%2f/e/EXCHANGENAME/q/QUEUENAME

Note 192.168.99.100:15672 points to my RMQ Management

Answer 5

rabbitmqctl, the provided command line interface, doesn't expose the ability to create a queue and bind it.

It, however, is quite trivial to do it with a quick script though, and the RabbitMQ getting started guide shows several examples of it, both on the publisher as well as the consumer side.

#do some work to connect
#do some work to open a channel
channel.queue_declare(queue='helloworld')

I'm glossing over connecting, but it's a literal one liner to create a queue. The operation is also idempotent, meaning you can include the statement in a script and be safe, knowing that it won't keep recreating the queue or blowing out an existing one of the same name.