next.js/examples/with-algolia-react-instantsearch/components/head.js

import NextHead from 'next/head'
import { string } from 'prop-types'
import React from 'react'

const defaultDescription = ''
const defaultOGURL = ''
const defaultOGImage = ''

export const Head = props => (
  <NextHead>
    <meta charSet='UTF-8' />
    <title>{props.title || ''}</title>
    <meta
      name='description'
      content={props.description || defaultDescription}
    />
    <meta name='viewport' content='width=device-width, initial-scale=1' />
    <link rel='icon' sizes='192x192' href='/static/touch-icon.png' />
    <link rel='apple-touch-icon' href='/static/touch-icon.png' />
    <link rel='mask-icon' href='/static/favicon-mask.svg' color='#49B882' />
    <link rel='icon' href='/static/favicon.ico' />
    <meta property='og:url' content={props.url || defaultOGURL} />
    <meta property='og:title' content={props.title || ''} />
    <meta
      property='og:description'
      content={props.description || defaultDescription}
    />
    <meta name='twitter:site' content={props.url || defaultOGURL} />
    <meta name='twitter:card' content='summary_large_image' />
    <meta name='twitter:image' content={props.ogImage || defaultOGImage} />
    <meta property='og:image' content={props.ogImage || defaultOGImage} />
    <meta property='og:image:width' content='1200' />
    <meta property='og:image:height' content='630' />
    <link
      rel='stylesheet'
      href='https://unpkg.com/react-instantsearch-theme-algolia@3.0.0/style.min.css'
    />
    <link rel='stylesheet' href='../static/instantsearch.css' />
  </NextHead>
)

Head.propTypes = {
  title: string,
  description: string,
  url: string,
  ogImage: string
}

export default Head