Chartjs-Placing Data Labels Outside Pie or Doughnut Chart – Chart.js

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This works for me without the datalabels field (as it requires installing chartjs-plugin-datalabels.js library).

So basically the ChartOptions setting is similar to the one you provided.

import 'chartjs-plugin-outerlabels';

getPieChartOptions(chartTitle: string) {
  const options: ChartOptions<'doughnut'> = {
    responsive: true,
    plugins: {
      outerLabels: {
        fontNormalSize: 12,
        fontNormalFamily: 'sans-serif',
      },
      legend: {
        display: true,
        labels: {
          usePointStyle: true,
          font: {
            family: 'sans-serif',
            size: 12,
          },
        },
      },
      title: {
        display: true,
        text: chartTitle,
        color: 'black',
        padding: 5,
        font: {
          size: 16,
          family: 'sans-serif',
        },
      },
      tooltip: {
        enabled: false,
      },
    },
  };
  return options;
}

And this is how to render the chart to the canvas element.

@ViewChild('MyChart', { static: true }) chart: ElementRef<HTMLCanvasElement>;

ngAfterViewInit() {
  const ctx = this.chart.nativeElement.getContext('2d');
  new Chart<'doughnut'>(ctx, {
    type: 'doughnut',
    data: {
      labels: [['Download', 'Sales'], ['In', 'Store', 'Sales'], 'Mail Sales'],
      datasets: [
        {
          data: [300, 500, 100],
        },
      ],
    },
    options: this.getPieChartOptions('doughnut'),
  } as ChartConfiguration<'doughnut'>).draw;
}

Demo @ StackBlitz

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