Created
April 25, 2020 23:59
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| import React from "react" | |
| import PropTypes from "prop-types" | |
| import { Helmet } from "react-helmet" | |
| import { useLocation } from "@reach/router" | |
| import { useStaticQuery, graphql } from "gatsby" | |
| const SEO = ({ title, description, image, article }) => { | |
| const { pathname } = useLocation() | |
| const { site } = useStaticQuery(query) | |
| const { | |
| defaultTitle, | |
| titleTemplate, | |
| defaultDescription, | |
| siteUrl, | |
| defaultImage, | |
| twitterUsername, | |
| } = site.siteMetadata | |
| const seo = { | |
| title: title || defaultTitle, | |
| description: description || defaultDescription, | |
| image: `${siteUrl}${image || defaultImage}`, | |
| url: `${siteUrl}${pathname}`, | |
| } | |
| return ( | |
| <Helmet title={seo.title} titleTemplate={titleTemplate}> | |
| <meta name="description" content={seo.description} /> | |
| <meta name="image" content={seo.image} /> | |
| {seo.url && <meta property="og:url" content={seo.url} />} | |
| {(article ? true : null) && <meta property="og:type" content="article" />} | |
| {seo.title && <meta property="og:title" content={seo.title} />} | |
| {seo.description && ( | |
| <meta property="og:description" content={seo.description} /> | |
| )} | |
| {seo.image && <meta property="og:image" content={seo.image} />} | |
| <meta name="twitter:card" content="summary_large_image" /> | |
| {twitterUsername && ( | |
| <meta name="twitter:creator" content={twitterUsername} /> | |
| )} | |
| {seo.title && <meta name="twitter:title" content={seo.title} />} | |
| {seo.description && ( | |
| <meta name="twitter:description" content={seo.description} /> | |
| )} | |
| {seo.image && <meta name="twitter:image" content={seo.image} />} | |
| </Helmet> | |
| ) | |
| } | |
| export default SEO | |
| SEO.propTypes = { | |
| title: PropTypes.string, | |
| description: PropTypes.string, | |
| image: PropTypes.string, | |
| article: PropTypes.bool, | |
| } | |
| SEO.defaultProps = { | |
| title: null, | |
| description: null, | |
| image: null, | |
| article: false, | |
| } | |
| const query = graphql` | |
| query SEO { | |
| site { | |
| siteMetadata { | |
| defaultTitle: title | |
| titleTemplate | |
| defaultDescription: description | |
| siteUrl: url | |
| defaultImage: image | |
| twitterUsername | |
| } | |
| } | |
| } | |
| ` |
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