Created
July 29, 2019 04:37
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/** | |
* SEO component that queries for data with | |
* Gatsby's useStaticQuery React hook | |
* | |
* See: https://www.gatsbyjs.org/docs/use-static-query/ | |
*/ | |
import React from "react" | |
import Helmet from "react-helmet" | |
import { useStaticQuery, graphql } from "gatsby" | |
interface Props { | |
description?: string | |
lang?: string | |
meta?: [] | |
title: string | |
} | |
const SEO = ({ description, lang, meta, title }: Props) => { | |
const { site } = useStaticQuery( | |
graphql` | |
query { | |
site { | |
siteMetadata { | |
title | |
description | |
author | |
} | |
} | |
} | |
` | |
) | |
const metaDescription = description || site.siteMetadata.description | |
return ( | |
<Helmet | |
htmlAttributes={{ | |
lang, | |
}} | |
title={title} | |
titleTemplate={`%s | ${site.siteMetadata.title}`} | |
meta={[ | |
{ | |
name: `description`, | |
content: metaDescription, | |
}, | |
{ | |
property: `og:title`, | |
content: title, | |
}, | |
{ | |
property: `og:description`, | |
content: metaDescription, | |
}, | |
{ | |
property: `og:type`, | |
content: `website`, | |
}, | |
{ | |
name: `twitter:card`, | |
content: `summary`, | |
}, | |
{ | |
name: `twitter:creator`, | |
content: site.siteMetadata.author, | |
}, | |
{ | |
name: `twitter:title`, | |
content: title, | |
}, | |
{ | |
name: `twitter:description`, | |
content: metaDescription, | |
}, | |
].concat(meta || [])} | |
/> | |
) | |
} | |
export default SEO |
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