Adobe Experience Cloud without AEM | Datalayer component

DataLayer.js

import React from 'react';
export default class DataLayer extends React.Component {
  constructor(props) {
    super(props);
  }
  render() {
    return (
      <></>
    )
  }
  componentDidMount() {
    const { pageTitle, pageType, pagePath } = this.props;
    {
      window.digitalData = {
        page: {
          pageInfo: {
            pageName: pageTitle,
            pageType: pageType,
            pagePath: pagePath
          }
        }
      }
      var event = new CustomEvent('datalayer-complete');
      var obj = document.querySelector("body");
      obj.dispatchEvent(event);
    }
  }
}