RabbitMQ - Get messages from a queue using curl

Question

I am trying to get a few messages from a queue using the HTTP API of rabbitmq.

I am following the documentation in here I have no vhost configured.

I tried the following curl command:

curl -i -u guest:guest -H "content-type:application/json" -X POST http://127.0.0.1:15672/api/queues/foo/get -d'{"count":5,"requeue":true,"encoding":"auto","truncate":50000}'

RabbitMQ then answers:

HTTP/1.1 405 Method Not Allowed
vary: origin
Server: MochiWeb/1.1 WebMachine/1.10.0 (never breaks eye contact)
Date: Thu, 20 Apr 2017 08:03:28 GMT
Content-Length: 66
Allow: HEAD, GET, PUT, DELETE, OPTIONS

{"error":"Method Not Allowed","reason":"\"Method Not Allowed\"\n"}

Can you point out my mistake? How can I get these messages?

Answer 1

you are missing the queue name:

curl -i -u guest:guest -H "content-type:application/json" -X POST http://127.0.0.1:15672/api/queues/foo/my_queue/get -d'{"count":5,"requeue":true,"encoding":"auto","truncate":50000}'

where foo is the virtual host, and my_queue is the queue name.

as result:

[
   {
      "payload_bytes":4,
      "redelivered":true,
      "exchange":"",
      "routing_key":"my_queue",
      "message_count":5,
      "properties":{
         "delivery_mode":1,
         "headers":{

         }
      },
      "payload":"test",
      "payload_encoding":"string"
   },
   {
      "payload_bytes":4,
      "redelivered":true,
      "exchange":"",
      "routing_key":"my_queue",
      "message_count":4,
      "properties":{
         "delivery_mode":1,
         "headers":{

         }
      },
      "payload":"test",
      "payload_encoding":"string"
   },
   {
      "payload_bytes":4,
      "redelivered":true,
      "exchange":"",
      "routing_key":"my_queue",
      "message_count":3,
      "properties":{
         "delivery_mode":1,
         "headers":{

         }
      },
      "payload":"test",
      "payload_encoding":"string"
   },
   {
      "payload_bytes":4,
      "redelivered":true,
      "exchange":"",
      "routing_key":"my_queue",
      "message_count":2,
      "properties":{
         "delivery_mode":1,
         "headers":{

         }
      },
      "payload":"test",
      "payload_encoding":"string"
   },
   {
      "payload_bytes":4,
      "redelivered":true,
      "exchange":"",
      "routing_key":"my_queue",
      "message_count":1,
      "properties":{
         "delivery_mode":1,
         "headers":{

         }
      },
      "payload":"test",
      "payload_encoding":"string"
   }
]

EDIT

In case you are using the default vhost:

curl -i -u guest:guest -H "content-type:application/json" -X POST http://127.0.0.1:15672/api/queues/%2f/my_queue/get -d'{"count":5,"requeue":true,"encoding":"auto","truncate":50000}'

Answer 2

Note that the syntax seems to have changed in more recent releases (and the HTTP API documentation seems to be lagging behind) and instead of the requeue option the ack_mode option needs to be set, e.g. "ack_mode"="ack_requeue_true"

So the example above for current RabbitMQ versions would be:

curl -u guest:guest -i -H "content-type:application/json" -X POST http://127.0.0.1:15672/api/queues/%2F/foo/get -d'{"count":5,"ack_mode"="ack_requeue_true","encoding":"auto","truncate":50000}'