IMO, I think you may want to read docs for and try the examples in the Dev Guide for doing asynchronous socket connections. Barry's examples will be great but it is good to have an understanding of what has been coded.

Also, note that when you send IR via http you will not be able to specify press and hold repeat like functionality.

I don't think this will be an issue because the only things where this would come into play are on things like next chapter and the IIRC, Dune does not support repeated chapter changes without first navigating to the next/prev chapter.