Deduping for mutate + useSWR

[KateKate]

Hi, have you considered to deduplicate mutate and useSWR?
E.g. you make mutation anywhere (web socket listener, parent component, etc) and no need to revalidate with useSWR in interval. There is such option for useSWR - dedupingInterval. It seems good to have the same for mutate - mutate(config, data, { dedupingInterval: 2000 })

It's useful for the cases:

• update component data with mutate in web socket listener and show the updated component
• fetch all data in parent => navigate to child from the parent
  Plz consider the example below. https://codesandbox.io/s/busy-mcnulty-lxulf?file=/src/App.js

Thanks

[3pleFly]

I just encountered this... I need to fetch the streets for a given city, Once I have the cities from SWR, now I need the streets from SWR.

So I have to await a mutate() call for streets with the cityid, however because there's no deduping, I get multiple calls wherever the hook is used.