'Add callback function to getCB'?

[ibm-messaging]

'Add callback function to getCB'?

[ibmmqmet]

I don't think I see what you're trying to get at here. The getCB function in amqsgeta shows how a callback is registered and driven, but there's already an internal function (mqiCB) inside mqi.js that is calling that callback, and setting up the various parameters. What you do in your application's equivalent of what is done in that example getCB function is up to you, based on the parameters passed to it and constraints such as not being able to call other MQI functions directly from within the callback.