Discussion on: Nextjs + typescript +styled-components

[Nicolás M. Pardo]

If you are using string TypeScript as I am, this is _document.tsx with all types included:

import Document, { DocumentContext, DocumentInitialProps } from 'next/document';
import { ServerStyleSheet } from 'styled-components';

export default class MyDocument extends Document {
  static async getInitialProps(
    ctx: DocumentContext
  ): Promise<DocumentInitialProps> {
    const sheet = new ServerStyleSheet();
    const originalRenderPage = ctx.renderPage;

    try {
      ctx.renderPage = () =>
        originalRenderPage({
          enhanceApp: (App) => (props) =>
            sheet.collectStyles(<App {...props} />),
        });

      const initialProps = await Document.getInitialProps(ctx);
      return {
        ...initialProps,
        styles: (
          <>
            {initialProps.styles}
            {sheet.getStyleElement()}
          </>
        ),
      };
    } finally {
      sheet.seal();
    }
  }
}

[Nate]

This was super helpful but i keep getting JSX.element type error at

  return {
    ...initialProps,
    styles: (
      <>
        {initialProps.styles}
        {sheet.getStyleElement()}
      </>
    ),
  };

is there any way to fix this?

[Chairat Ko]

Chang from styles:(), to styles:[],

[Andrew Nosov]

You've saved my time! Thanks!!!