p5.js-web-editor/client/components/createRedirectWithUsername.jsx

import React from 'react';
import { connect } from 'react-redux';
import { browserHistory } from 'react-router';

const RedirectToUser = ({ username, url = '/:username/sketches' }) => {
  React.useEffect(() => {
    if (username == null) {
      return;
    }

    browserHistory.replace(url.replace(':username', username));
  }, [username]);

  return null;
};

function mapStateToProps(state) {
  return {
    username: state.user ? state.user.username : null,
  };
}

const ConnectedRedirectToUser = connect(mapStateToProps)(RedirectToUser);

const createRedirectWithUsername = url => props => <ConnectedRedirectToUser {...props} url={url} />;

export default createRedirectWithUsername;