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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,44 +1,89 @@ | ||
| import React from 'react'; | ||
| import { Helmet } from 'react-helmet'; | ||
|
|
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| import { graphql, useStaticQuery } from 'gatsby'; | ||
|
|
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| import PropTypes from 'prop-types'; | ||
|
|
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| import favicon from '../img/favicon.ico'; | ||
| import config from '../meta/siteConfig'; | ||
|
|
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| const SEO = () => { | ||
| const { siteTitle, siteTitleAlt, siteDescription, siteUrl, userTwitter } = config.siteTitle; | ||
| const query = graphql` | ||
| query SEO { | ||
| site { | ||
| siteMetadata { | ||
| defaultTitle: title | ||
| titleTemplate | ||
| defaultDescription: description | ||
| siteUrl: url | ||
| twitterUsername | ||
| } | ||
| } | ||
| } | ||
| `; | ||
|
|
||
| const SEO = ({ title, description, image, pathname, article }) => { | ||
| const { | ||
| site: { | ||
| siteMetadata: { defaultTitle, titleTemplate, defaultDescription, siteUrl, twitterUsername }, | ||
| }, | ||
| } = useStaticQuery(query); | ||
| const seo = { | ||
| title: title || defaultTitle, | ||
| description: description || defaultDescription, | ||
| image: `${siteUrl}${image}`, | ||
| url: `${siteUrl}${pathname || '/'}`, | ||
| }; | ||
|
|
||
| const schemaOrgJSONLD = [ | ||
| { | ||
| '@context': 'http://schema.org', | ||
| '@type': 'WebSite', | ||
| url: siteUrl, | ||
| name: siteTitle, | ||
| alternateName: siteTitleAlt || '', | ||
| url: seo.url, | ||
| name: seo.title, | ||
| alternateName: seo.title, | ||
| }, | ||
| ]; | ||
|
|
||
| return ( | ||
| <Helmet> | ||
| <Helmet title={seo.title} titleTemplate={titleTemplate}> | ||
| <meta charSet="utf-8" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | ||
| <html lang="en" /> | ||
| <link rel="icon" href={favicon} /> | ||
| {/* General tags */} | ||
| <title>{siteTitle}</title> | ||
| <meta name="description" content={siteDescription} /> | ||
| <meta name="description" content={seo.description} /> | ||
| {image && <meta name="image" content={seo.image} />} | ||
| {/* Schema.org tags */} | ||
| <script type="application/ld+json">{JSON.stringify(schemaOrgJSONLD)}</script> | ||
| {/* OpenGraph tags */} | ||
| <meta property="og:title" content={siteTitle} /> | ||
| <meta property="og:url" content={siteUrl} /> | ||
| <meta property="og:description" content={siteDescription} /> | ||
| {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} />} | ||
| {image && <meta property="og:image" content={seo.image} />} | ||
| {/* Twitter Card tags */} | ||
| <meta name="twitter:card" content="summary_large_image" /> | ||
| <meta name="twitter:creator" content={userTwitter || ''} /> | ||
| <meta name="twitter:title" content={siteTitle} /> | ||
| <meta name="twitter:description" content={siteDescription} /> | ||
| {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} />} | ||
| {image && <meta name="twitter:card" content="summary_large_image" />} | ||
| {image && <meta name="twitter:image" content={seo.image} />} | ||
| </Helmet> | ||
| ); | ||
| }; | ||
|
|
||
| export default SEO; | ||
|
|
||
| SEO.propTypes = { | ||
| title: PropTypes.string, | ||
| description: PropTypes.string, | ||
| image: PropTypes.string, | ||
| pathname: PropTypes.string, | ||
| article: PropTypes.bool, | ||
| }; | ||
| SEO.defaultProps = { | ||
| title: null, | ||
| description: null, | ||
| image: '', | ||
| pathname: null, | ||
| article: false, | ||
| }; |
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