woocommerce/plugins/woocommerce-blocks/assets/js/hocs/with-categories.js

/**
 * External dependencies
 */
import { Component } from '@wordpress/element';
import { createHigherOrderComponent } from '@wordpress/compose';

/**
 * Internal dependencies
 */
import { getCategories } from '../components/utils';
import { formatError } from '../base/utils/errors.js';

const withCategories = createHigherOrderComponent(
	( OriginalComponent ) => {
		return class WrappedComponent extends Component {
			constructor() {
				super( ...arguments );
				this.state = {
					error: null,
					loading: false,
					categories: null,
				};
				this.loadCategories = this.loadCategories.bind( this );
			}

			componentDidMount() {
				this.loadCategories();
			}

			loadCategories() {
				this.setState( { loading: true } );

				getCategories().then( ( categories ) => {
					this.setState( { categories, loading: false, error: null } );
				} ).catch( async ( e ) => {
					const error = await formatError( e );

					this.setState( { categories: null, loading: false, error } );
				} );
			}

			render() {
				const { error, loading, categories } = this.state;

				return <OriginalComponent
					{ ...this.props }
					error={ error }
					isLoading={ loading }
					categories={ categories }
				/>;
			}
		};
	},
	'withCategories'
);

export default withCategories;