Discussion on: Watch for Vuex State changes!

[Adam Beguelin]

Yes, you're correct. user is in the store and I'm trying to get data from Firestore when user changes. But this.$store.watch never gets invoked. If I console.log it in mounted it's null. But when I console.log it in beforeUpdate it's set. Yet, this.$store.watch is never called.

If I use the normal watcher on user it gets invoked, but the values don't seem to be there. I can log them and they are undefined. Perhaps this is because user is a Vuex computed property. I tried deep: true but then the (non-store) watcher is invoked twice, neither time with the data I need.

Any idea why the watcher isn't being called even through user is obviously changing?

Thanks for your help!

[Vinicius Kiatkoski Neves]

Hey Adam, to help our discussion I've created this Codesandbox: codesandbox.io/s/agitated-haze-ojdun

Please check store.js and App.vue. I've tried to create a fetch logic (full user and just username). Please mind the comments and play with comment/uncomment the deep and immediate options.
Also mind the first warning here vuejs.org/v2/api/#vm-watch once you hit the Fetch new username button.