I use a mixin for this purpose all the time!
(defmixin go-loop-aware
(init-aware [owner]
{:chans {:mounted (async/chan)}})
(will-unmount [owner]
(async/close! (om/get-state owner [:chans :mounted])))
(go-loop-aware [owner read-chan callback]
(when (exists? js/window)
(let [mounted (om/get-state owner [:chans :mounted])]
(go-loop []
(when-some [v (first (async/alts! [read-chan mounted]))]
(callback v)
(recur)))))))
I like the kill channel solution better personally since like Daniel point out,
it doesn't require the read-chan to be owned or controlled by the component.
When [:chans :mounted] is closed, the go-loop exits. I always use when-some
over when-let here since when-let would close the go block if false was ever
submitted to your read channel, whereas when-some only evaluates (not= nil)
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