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

<script src="/stimulsoft/stimulsoft.reports.js"></script>
<script src="/stimulsoft/stimulsoft.viewer.js"></script>
<script src="/stimulsoft/stimulsoft.designer.js"></script>
<script src="/stimulsoft/stimulsoft.blockly.js"></script>

Then, create a Designer class which extends from React component:

<script type="text/babel">
	class Designer extends React.Component {
		render() {
			return <div id="designer"></div>;
		}          

		componentDidMount(){
			console.log('Loading Designer view');

			console.log('Set full screen mode for the designer');
			var options = new window.Stimulsoft.Designer.StiDesignerOptions();
			options.appearance.fullScreenMode = false;

			console.log('Create the report designer with specified options');
			var designer = new window.Stimulsoft.Designer.StiDesigner(options, 'StiDesigner', false);

			console.log('Create a new report instance');
			var report = new window.Stimulsoft.Report.StiReport();

			console.log('Load report from url');
			report.loadFile('reports/SimpleList.mrt');

			console.log('Edit report template in the designer');
			designer.report = report;  
                
			designer.renderHtml("designer");
		}
	}

...

Finally, use ReactDOM.render to update the component:

...

	ReactDOM.render(
		<Designer />,
		document.getElementById("main")
	)        
</script>

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