Enable 'derived' options in 'useChannel' hook

[rustworthy]

• enabling 'derived' options to 'useChannel' hook;
• updating 'fake' ably to mimic this behavior;
• adding tests and example usage to 'sample-app'

[owenpearson]

Hey @rustworthy, thanks for submitting this! I've had a play around with it locally and it works great, really appreciate that you updated the tests too 🙂

I have one minor comment (below) and I do think we ought something to react.md so that this is discoverable to others. I'm happy to take care of both if you'd prefer, just let me know

[rustworthy]

Hey @rustworthy, thanks for submitting this! I've had a play around with it locally and it works great, really appreciate that you updated the tests too 🙂

I have one minor comment (below) and I do think we ought something to react.md so that this is discoverable to others. I'm happy to take care of both if you'd prefer, just let me know

Hey @owenpearson!

My pleasure. Relying on the library (and enjoying working with it) on a project with a notification framework where Kafka is connected to Ably with a sink connector and a lot of meta information is carried in the messages' headers. At the application level (Next.js deployed on Vercel) we are using filter expressions to only get those messages that are of interest to the current user. This is just for the context :)

Added example usage to the docs.

[owenpearson]

Thanks for updating. Really interesting to hear about your use case and I'm glad it's working well so far! thanks again for the contribution, we'll release this very soon 🙂

[owenpearson]

Hey @rustworthy just to let you know this is now available in version 1.2.48 🙂

[rustworthy]

Hey @rustworthy just to let you know this is now available in version 1.2.48 🙂

Hey @owenpearson
Supercool:)