Changes

1 files changed, 76 insertions, 0 deletions

diff --git a/src/components/SEO.tsx b/src/components/SEO.tsx
new file mode 100644
index 0000000..ce86222
--- /dev/null
+++ b/src/components/SEO.tsx
@@ -0,0 +1,76 @@
+import React from "react"
+import PropTypes from "prop-types"
+import { Helmet } from "react-helmet"
+import { useStaticQuery, graphql } from "gatsby"
+
+function SEO({ description, lang, meta, title }) {
+  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)}
+    />
+  )
+}
+SEO.defaultProps = {
+  lang: `en`,
+  meta: [],
+  description: ``,
+}
+SEO.propTypes = {
+  description: PropTypes.string,
+  lang: PropTypes.string,
+  meta: PropTypes.arrayOf(PropTypes.object),
+  title: PropTypes.string.isRequired,
+}
+export default SEO
\ No newline at end of file