94 lines
1.7 KiB
TypeScript
94 lines
1.7 KiB
TypeScript
/**
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* SEO component that queries for data with
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* Gatsby's useStaticQuery React hook
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*
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* See: https://www.gatsbyjs.org/docs/use-static-query/
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*/
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import React, { FC } from 'react'
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import { Helmet } from 'react-helmet'
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import { useStaticQuery, graphql } from 'gatsby'
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interface MetaProperty {
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property: string
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content: string
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}
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interface MetaName {
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name: string
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content: string
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}
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type Meta = MetaName | MetaProperty
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export interface SEOProps {
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title: string
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description?: string
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lang?: string
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meta?: Meta[]
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}
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const SEO: FC<SEOProps> = ({
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description = '',
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lang = 'en',
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meta = [],
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title,
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}) => {
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const { site } = useStaticQuery(
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graphql`
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query {
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site {
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siteMetadata {
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title
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description
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}
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}
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}
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`,
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)
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const metaDescription = description || site.siteMetadata.description
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return (
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<Helmet
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htmlAttributes={{
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lang,
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}}
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title={title}
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titleTemplate={`%s | ${site.siteMetadata.title}`}
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meta={[
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{
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name: `description`,
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content: metaDescription,
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},
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{
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property: `og:title`,
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content: title,
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},
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{
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property: `og:description`,
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content: metaDescription,
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},
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{
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property: `og:type`,
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content: `website`,
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},
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{
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name: `twitter:card`,
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content: `summary`,
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},
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{
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name: `twitter:title`,
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content: title,
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},
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{
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name: `twitter:description`,
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content: metaDescription,
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},
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].concat(meta)}
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/>
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)
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}
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export default SEO
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