Apexchats.js axios gives me undefined with Vue - vue.js

Question

I am trying to get data from server using vue and apexcharts, but even after I called data with axios, it gives me undefined..
What have I missed?
template
<apexchart
ref="chart1"
width="100%"
:options="chartOptions" :series="series">
</apexchart>
data from url
{
"pageviews": 1313,
"new_users": 1014
}
script
export default {
data: function () {
return {
series: [],
chartOptions: {
chart: {
type: 'donut',
},
colors: ['#01cd49', '#007568'],
labels: ['new', 're'],
}
},
created: function () {
this.getByVisitor()
},
methods: {
getByVisitor() {
const url = 'url';
axios
.get(url)
.then(response => {
this.$refs.chart1.updateSeries([{
name: 'Sales',
data: response.data
}])
})
.catch(error => (this.byVisitor = error.data));
console.log(`---------------this.$refs.chart1`, this.$refs.chart1);
},
}

Answer 1

See Updating Vue Chart Data
There's no need to directly call the updateSeries() method on the chart component since it is able to react to changes in series. All you have to do is update your series data property
export default {
data: () => ({
series: [], // 👈 start with an empty array here
byVisitor: null, // 👈 you seem to have missed this one for your error data
chartOptions: {
chart: {
type: 'donut',
},
colors: ['#01cd49', '#007568'],
labels: ['new', 're'],
}
}),
created: function() {
this.getByVisitor()
},
methods: {
async getByVisitor() {
const url = 'url';
try {
const { data } = await axios.get(url)
// now update "series"
this.series = [{
name: "Sales",
data
}]
} catch (error) {
this.byVisitor = error.data
}
},
}
}