如何将API图形应用于Angular 6中的Bootstrap进度条？

npm install bootstrap
npm install ng2-charts
npm install chart.js

"styles": [
  "node_modules/bootstrap/dist/css/bootstrap.min.css",
  "node_modules/ng2-charts/css/charts.css",
  "src/styles.css"
],
"scripts": [
  "node_modules/chart.js/dist/Chart.min.js"
]

import { Component } from '@angular/core';
import { ChartDataSets, ChartOptions } from 'chart.js';
import { Color, Label } from 'ng2-charts';

@Component({
  selector: 'app-progress-bar',
  templateUrl: './progress-bar.component.html',
  styleUrls: ['./progress-bar.component.css']
})
export class ProgressBarComponent {
  public barChartData: ChartDataSets[] = [
    { data: [75], label: 'Progress' }
  ];

  public barChartLabels: Label[] = [''];
  
  public barChartOptions: ChartOptions = {
    responsive: true,
    scales: { x: { display: false }, y: { display: false } },
    plugins: { legend: { display: false } }
  };

  public barChartColors: Color[] = [
    { backgroundColor: 'rgba(0, 123, 255, 0.5)' }
  ];
}

<div style="text-align: center;">
  <canvas baseChart
          [datasets]="barChartData"
          [labels]="barChartLabels"
          [options]="barChartOptions"
          [colors]="barChartColors"
          [chartType]="'bar'">
  </canvas>
</div>