I'm curious whether the patterns explored have found application in a redux middleware[1] approach that builds on or is inspired by redux-observable[2] and/or redux-saga[3]. I've been searching around since reading the OP, but no joy so far.

[1] http://redux.js.org/docs/advanced/Middleware.html

[2] https://redux-observable.js.org/

[3] https://redux-saga.github.io/redux-saga/