This example shows how to integrate the report viewer into a React application with TypeScript. First of all, load scripts:

import React from 'react';
import { Stimulsoft } from 'stimulsoft-reports-js/Scripts/stimulsoft.viewer';
import 'stimulsoft-reports-js/Css/stimulsoft.viewer.office2013.whiteblue.css';
import './App.css';

Then, create an App class which extends from React component:

class App extends React.Component {
    private viewer = new Stimulsoft.Viewer.StiViewer(undefined, 'StiViewer', false);
    private report = new Stimulsoft.Report.StiReport();

    render() {
        return (
            <div id="viewer" className="App">
            </div>
        );
    }

...

Finally, use componentDidMount() method to set viewer options, load the report and display it in the viewer:

...

	async componentDidMount() {
		console.log('Loading Viewer view');

		const response = await fetch('/reports/Report.mdc');
		const data = await response.json();
		console.log('Load report from url');
		this.report.loadDocument(data);
		this.viewer.report = this.report;

		console.log('Rendering the viewer to selected element');
		this.viewer.renderHtml('viewer');
	}

...

In the screenshot below you can see the result of the sample code: