withAuthentication.jsx

function withAuthentication(WrappedComponent) {
  const ModifiedComponent = (props) => {
    if (!props.isAuthenticated) {
      return <Redirect to="/login" />;
    }

    return (<WrappedComponent { ...props } />);
  };

  const mapStateToProps = (state) => ({
    isAuthenticated: state.session.isAuthenticated
  });

  return connect(mapStateToProps)(ModifiedComponent);
}