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import { StaticQuery, graphql } from "gatsby" |
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import PropTypes from "prop-types" |
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import React from "react" |
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import { Helmet } from "react-helmet" |
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import defaultOgImage from "../images/preseason.jpg" |
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// function SEO({ description, lang, meta, keywords, title }) { |
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function SEO({ lang, title, description, meta, keywords, path, image: metaImage }) { |
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return ( |
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<StaticQuery |
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query={detailsQuery} |
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render={({ site }) => { |
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const metaDescription = description || site.siteMetadata.description |
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const canonicalUrl = path ? `${site.siteMetadata.siteUrl}${path}` : null |
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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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link={canonicalUrl ? [{ rel: `canonical`, href: canonicalUrl }] : []} |
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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: `fb:app_id`, |
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content: site.siteMetadata.fbAppId, |
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}, |
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] |
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.concat(getOgMeta(title, metaDescription, canonicalUrl)) |
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.concat(getOgImage(site, metaImage, title)) |
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.concat(getTwitterMeta(site, title, metaDescription, metaImage)) |
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.concat(getKeywords(keywords)) |
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.concat(meta)} |
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/> |
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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 getOgMeta = (title, metaDescription, canonicalUrl) => { |
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const ogMeta = [ |
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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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].concat(getOgUrl(canonicalUrl)) |
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return ogMeta |
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} |
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const getTwitterMeta = (site, title, metaDescription, metaImage) => { |
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const twitterMeta = [ |
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{ |
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name: `twitter:creator`, |
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content: site.siteMetadata.author, |
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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(getTwitterCard(site, metaImage)) |
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return twitterMeta |
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} |
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const getOgImage = ({ siteMetadata }, metaImage, title) => { |
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const image = metaImage && metaImage.src ? `${siteMetadata.siteUrl}${metaImage.src}` : null |
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return metaImage |
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? [ |
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{ |
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property: `og:image`, |
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content: image, |
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}, |
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{ |
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property: `og:image:width`, |
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content: metaImage.width, |
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}, |
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{ |
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property: `og:image:type`, |
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content: `image/jpeg`, |
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}, |
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{ |
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property: `og:image:height`, |
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content: metaImage.height, |
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}, |
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{ |
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property: `og:image:title`, |
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content: title, |
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}, |
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{ |
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property: `og:image:alt`, |
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content: title, |
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}, |
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] |
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: [] |
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} |
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const getTwitterCard = (metaImage) => |
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metaImage |
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? { |
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name: `twitter:card`, |
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content: `summary_large_image`, |
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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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const getOgUrl = (canonicalUrl) => |
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canonicalUrl |
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? { |
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property: `og:url`, |
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content: canonicalUrl, |
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} |
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: [] |
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const getKeywords = (keywords) => |
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keywords.length > 0 |
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? { |
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name: `keywords`, |
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content: keywords.join(`, `), |
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} |
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: [] |
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SEO.defaultProps = { |
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lang: `nl-BE`, |
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meta: [], |
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keywords: [], |
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path: `/`, |
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image: { |
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src: defaultOgImage, |
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width: 2000, |
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height: 1000, |
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}, |
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} |
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SEO.propTypes = { |
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subtitle: PropTypes.string, |
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description: PropTypes.string, |
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lang: PropTypes.string, |
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meta: PropTypes.array, |
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keywords: PropTypes.arrayOf(PropTypes.string), |
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title: PropTypes.string.isRequired, |
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path: PropTypes.string, |
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image: PropTypes.shape({ |
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src: PropTypes.string.isRequired, |
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height: PropTypes.number.isRequired, |
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width: PropTypes.number.isRequired, |
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}), |
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} |
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export default SEO |
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169
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170
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const detailsQuery = graphql` |
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171
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query DefaultSEOQuery { |
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site { |
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siteMetadata { |
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title |
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subTitle |
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description |
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author |
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siteUrl |
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fbAppId |
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} |
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} |
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} |
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` |
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soniCaH /
KCVV-Elewijt-Gatsby
