create-nextjs-storybook/templates/app/js/Header.stories.js

Install embedded Storybook route into a NextJS project

import { Header } from './Header';

export default {
  title: 'Example/Header',
  component: Header,
  parameters: {
    // More on how to position stories at: https://storybook.js.org/docs/configure/story-layout
    layout: 'fullscreen',
  },
};
export const LoggedIn = {
  args: {
    user: {
      name: 'Jane Doe',
    },
  },
};

export const LoggedOut = {
  args: {},
};