public function handle_api_requests() {
		global $wp;

		if ( ! empty( $_GET['wc-api'] ) ) { // WPCS: input var okay, CSRF ok.
			$wp->query_vars['wc-api'] = sanitize_key( wp_unslash( $_GET['wc-api'] ) ); // WPCS: input var okay, CSRF ok.
		}

		// wc-api endpoint requests.
		if ( ! empty( $wp->query_vars['wc-api'] ) ) {

			// Buffer, we won't want any output here.
			ob_start();

			// No cache headers.
			wc_nocache_headers();

			// Clean the API request.
			$api_request = strtolower( wc_clean( $wp->query_vars['wc-api'] ) );

			// Make sure gateways are available for request.
			WC()->payment_gateways();

			// Trigger generic action before request hook.
			do_action( 'woocommerce_api_request', $api_request );

			// Is there actually something hooked into this API request? If not trigger 400 - Bad request.
			status_header( has_action( 'woocommerce_api_' . $api_request ) ? 200 : 400 );

			// Trigger an action which plugins can hook into to fulfill the request.
			do_action( 'woocommerce_api_' . $api_request );

			// Done, clear buffer and exit.
			ob_end_clean();
			die( '-1' );
		}
	}