How to pass data on the root components in Vue - vue.js

Question

How can I pass the page_id to the Sidebar component method highlightNode(), because I want to highlight a newly added item. My current code is the page id is undefined.
This is my code & structure.
my root component is Sidebar.vue
<template>
<div>
<ul>
<li v-for="page in pages">
<div :class="{ 'highlight': highlightedNode == page.id }">
<router-link :to="'/view/' + page.id" #click.native="highlightNode(page.id)">
<span v-title="page.title"></span>
</router-link>
</div>
</li>
</ul>
</div>
</template>
export default {
data () {
return {
pages: [],
highlightedNode: null
}
},
mounted() {
this.getPages()
this.$root.$refs.Sidebar = this
},
methods: {
getPages() {
axios.get('/get-pages').then(response => {
this.pages = response.data
});
},
highlightNode(id) {
this.highlightedNode = id
},
}
}
my add new Page component AddNewPage.vue
<template>
<div>
<div class="main-header">
<div class="page-title">
<input type="text" v-model="page.title" class="form-control">
</div>
</div>
<div class="main-footer text-right">
<button class="btn btn-success btn-sm" #click="saveChanges()">Save and Publish</button>
</div>
</div>
</template>
export default {
data () {
return {
page: {
title: null,
},
}
},
mounted() {
//
},
methods: {
saveChanges() {
axios.post('/store-new-filter', this.page)
.then(response => {
const id = response.data.id // return page id
this.$root.$refs.Sidebar.highlightNode(id) // <-- this line, I want to pass page id to hightlight the newly added page.
})
.catch( error => {
})
},
}
}
Or any alternative way to achieve my expected output.
Thanks in advance.