The system I'm working on has 2 services busses. One is an external service bus for incoming messages from IoT devices and outgoing messages to 3rd parties, the other is for message passing between the different internal components of the system.
There is now a requirement to expose some existing (internal) messages, to the external service bus, and I'd like to do this without changing any code.
Is there a way for an external topic to be sent messages from an internal subscription? I realise I could do this with code, but is there a way with 'just' infrastructure configuration?