Copy of store not updated when mounted Async axios - vue.js

Question

I have been struggling with this issue for a day now. I want to make a copy of the store for user into userCopy so that it can be edited by the user without causing a mutation. My problem is that even though I am using the mounted hook, userCopy only returns an empty store state.
pages/settings/_id.vue
<template>
<div>
{{ user }} // will display the whole object
{{ userCopy }} // will only display empty store object
</div>
</template>
<script>
import { mapState } from 'vuex'
import _ from 'lodash'
data() {
return {
userCopy: {}
}
},
computed: {
...mapState({ user: (state) => state.staff.user })
},
created() {
this.$store.dispatch('staff/fetchUser', this.$route.params.id)
},
mounted() {
this.$data.userCopy = _.cloneDeep(this.$store.state.staff.user)
},
</script>
store/staff.js
import StaffService from '~/services/StaffService.js'
export const state = () => ({
user: {
offers: '',
legal: ''
}
})
export const mutations = {
SET_USER(state, user) {
state.user = user
},
}
export const actions = {
fetchUser({ commit, getters }, id) {
const user = getters.getUserById(id)
if (user) {
commit('SET_USER', user)
} else {
StaffService.getUser(id) // StaffService users axios get call
.then((response) => {
commit('SET_USER', response.data)
})
.catch((error) => {
console.log('There was an error:', error.response)
})
}
},
}
export const getters = {
getUserById: (state) => (id) => {
return state.staff.find((user) => user.id === id)
}
}
Even using this mounted method did not solve the issue. The userCopy object still returns empty.
mounted() {
this.$store
.dispatch('staff/fetchUser', this.$route.params.id)
.then((response) => {
this.userCopy = this.$store.state.staff.user
})
},

Answer 1

It seems that the mounted() is called before your network request get solved.
To fix this, I suggest to do like this.
First:
if (user) {
console.log('user found',user)
commit('SET_USER', user)
return user
} else {
console.log('user not found')
//RETURN the Axios Call here
return StaffService.getUser(id) // StaffService users axios get call
.then((response) => {
commit('SET_USER', response.data)
//return the response here, after committing
return response.data
})
then in your component
mounted() {
this.$store
.dispatch('staff/fetchUser', this.$route.params.id)
.then((response) => {
console.log(response)
this.userCopy = response
})
}