Fix styled-components example README notes (#11548 )

* Add notes to styled-components example README

* Adjust notes to styled-components example README

* Fix styled-components README notes

* Update README

2020-04-01 14:00:13 -05:00

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Example app with styled-components

This example features how you use a different styling solution than styled-jsx that also supports universal styles. That means we can serve the required styles for the first render within the HTML and then load the rest in the client. In this case we are using styled-components.

For this purpose we are extending the <Document /> and injecting the server side rendered styles into the <head>, and also adding the babel-plugin-styled-components (which is required for server side rendering). Additionally we set up a global theme for styled-components using NextJS custom <App> component.

Deploy your own

Deploy the example using ZEIT Now:

How to use

Using `create-next-app`

Execute create-next-app with npm or Yarn to bootstrap the example:

npm init next-app --example with-styled-components with-styled-components-app
# or
yarn create next-app --example with-styled-components with-styled-components-app

Download manually

Download the example:

curl https://codeload.github.com/zeit/next.js/tar.gz/canary | tar -xz --strip=2 next.js-canary/examples/with-styled-components
cd with-styled-components

Install it and run:

npm install
npm run dev
# or
yarn
yarn dev

Deploy it to the cloud with ZEIT Now (Documentation).

Try it on CodeSandbox

Open this example on CodeSandbox

Notes

When wrapping a Link from next/link within a styled-component, the as prop provided by styled will collide with the Link's as prop and cause styled-components to throw an Invalid tag error. To avoid this, you can either use the recommended forwardedAs prop from styled-components or use a different named prop to pass to a styled Link.

Click to expand workaround example

components/StyledLink.js

import React from 'react'
import Link from 'next/link'
import styled from 'styled-components'

const StyledLink = ({ as, children, className, href }) => (
  <Link href={href} as={as} passHref>
    <a className={className}>{children}</a>
  </Link>
)

export default styled(StyledLink)`
  color: #0075e0;
  text-decoration: none;
  transition: all 0.2s ease-in-out;

  &:hover {
    color: #40a9ff;
  }

  &:focus {
    color: #40a9ff;
    outline: none;
    border: 0;
  }
`

pages/index.js

import React from 'react'
import StyledLink from '../components/StyledLink'

export default () => (
  <StyledLink href="/post/[pid]" forwardedAs="/post/abc">
    First post
  </StyledLink>
)

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