Hello,
The broker does not seem to have much understanding of the C++ QPID Messaging
API and is more used to the Java version. All it is suggesting to ensure that
we pass the topic in the format "ID.ExampleTopic". However, looking at the AMQP
frames from Broker, it seems to misinterpret that topic for a queue, hence
there is an unauthorize error reported. ( " is not authorized to create:
queue://ID.ExampleTopic" )
From the QPID API usage perspective, do I need to invoke something else to make
the topic usage clear. I also experimented with creating a Sender with same
topic name but I get the same error.
Best Regards,
Rahul
-----Original Message-----
From: Gordon Sim <g...@redhat.com>
Sent: 30 June 2021 10:01
To: users@qpid.apache.org
Subject: Re: QPID C++ Subscribing to a topic
On Wed, Jun 30, 2021 at 9:40 AM rahul.sin...@morganstanley.com
<rahul.sin...@morganstanley.com> wrote:
> After being able to establish the connection with the broker at other end, we
> try to subscribe to a given topic. For this, we create the receiver with
> string mapping to the topic. ( Id.ExampleTopic ), where Id is the identifier
> broker assigned to us and ExampleTopic is the topic.
> We have already sought clarification with the broker about this issue,
> however, we wanted to ensure if the AMQP APIs are being used correctly for
> this and if we need to somehow communicate that we are subscribing for a
> topic. (for example, do we need to add some qualifier to the passed string
> etc.
>
> qpid::messaging::Connection conn(url, options); conn.open();
>
> qpid::messaging::Session session = conn.createSession();
>
> qpid::messaging::Receiver topic_receiver =
> session.createReceiver("Code.ExampleTopic");
If you are using AMQP 1.0, and the broker treats the creation of a receiver
with that pattern as a subscription on a topic, then the client does not
require any further configuration.
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