It's a complicated question for me. I see two ways...

# coroutines

[denis.zharkov]

It's a complicated question for me.
I see two ways of doing this:
- The first option is introduction of additional extensions to basic async controller (based on CompletableFuture), this may be unacceptable for JDK < 8. Also extensions are not supported yet
- Another one is to implement separate controller class and builder function for each different framework (RX, NIO, etc.), as you suggested.
But this leads to inconvenience when you want to use different await-able things within a single coroutine