Vue-Chartjs

LineChart.js

import {Line} from 'vue-chartjs'
import reactiveProp from './mixin.js'

export default Line.extend({
  mixins: [reactiveProp],
  props: ['chartData', 'options'],
  mounted () {
    this.renderChart(this.chartData, this.options)
  }
})

Reduce.vue

<template>
  <div class="small">
    <line-chart :chart-data="datacollection" :options="options"></line-chart>
    <button @click="fillData()">Randomize</button>
    <button @click="fetchData()">Fetch</button>
  </div>
</template>

<script>
  import LineChart from './LineChart.js'
  import axios from 'axios'
  import _ from 'lodash'

  export default {
    components: {
      LineChart
    },

    data () {
      return {
        datacollection: {
          labels: [],
          datasets: [
            {
              type: 'line',
              // label: 'Min',
              data: []
            },
            {
              type: 'line',
              // label: 'Max',
              data: []
            },
            {
              type: 'line',
              // label: 'Avg',
              data: []
            }
          ]
        },
        options: {
          responsive: true,
          maintainAspectRatio: false,
          scales: {
            xAxes: [{
              stacked: false,
              ticks: {
                beginAtZero: false
              },
              gridLines: {
                display: true
              }
            }],
            yAxes: [{
              stacked: false,
              ticks: {
                beginAtZero: false
              },
              gridLines: {
                display: true
              }
            }]
          }
        }
      }
    },

    mounted () {
      this.fetchData()
    },

    methods: {
      fetchData () {
        // OR API ENPOINt
        axios.get('http://localhost:8080/static/data.json')
        .then((response) => {
          let pricesChartData = _.merge({}, this.datacollection)
          pricesChartData.labels = _.keys(response.data.prices_chart)
          pricesChartData.datasets[0].data = _.map(response.data.prices_chart, 'min_price_per_day')
          pricesChartData.datasets[0].label = 'Max'
          pricesChartData.datasets[1].data = _.map(response.data.prices_chart, 'max_price_per_day')
          pricesChartData.datasets[1].label = 'Min'
          pricesChartData.datasets[2].data = _.map(response.data.prices_chart, 'avg_price_per_day')
          pricesChartData.datasets[2].label = 'Avg'
          this.datacollection = pricesChartData
        })

      },

      fillData () {
        this.datacollection = {
          labels: [this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt()],
          datasets: [
            {
              label: 'Data One',
              backgroundColor: '#f87979',
              data: [this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt()]
            }, {
              label: 'Data One',
              backgroundColor: '#f87979',
              data: [this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt(), this.getRandomInt()]
            }
          ]
        }
      },

      getRandomInt () {
        return Math.floor(Math.random() * (50 - 5 + 1)) + 5
      }
    }
  }
</script>

<style>
  .small {
    max-width: 600px;
    margin:  150px auto;
  }
</style>