add article:modified_time

Author: stasadev

src/layouts/Layout.astro

@@ -30,6 +30,7 @@ export interface Props {
   link?: object[]
   structuredData?: object[]
   pubDate?: Date
+  modifiedDate?: Date
 }
 
 const {
@@ -42,6 +43,7 @@ const {
   link = [],
   structuredData = [],
   pubDate,
+  modifiedDate,
 } = Astro.props
 
 const canonicalUrl = new URL(Astro.url.pathname, Astro.site).toString()
@@ -129,6 +131,7 @@ import "../styles/global.css"
         },
         article: pubDate ? {
           publishedTime: pubDate.toISOString(),
+          modifiedTime: modifiedDate ? modifiedDate.toISOString() : undefined,
         } : undefined,
       }}
       extend={{

src/lib/search-index.js

@@ -77,10 +77,15 @@ export default function searchIndex(config) {
           )
           const ogTitleValue = ogTitleTag.getAttribute("content")
 
+          const articleModifiedTag = postDocument.querySelector(
+            "meta[property='article:modified_time']"
+          )
           const articlePublishedTag = postDocument.querySelector(
             "meta[property='article:published_time']"
           )
-          const publishedDate = articlePublishedTag
+          const publishedDate = articleModifiedTag
+            ? articleModifiedTag.getAttribute("content")
+            : articlePublishedTag
             ? articlePublishedTag.getAttribute("content")
             : null
 

src/pages/blog/[id].astro

@@ -84,6 +84,7 @@ const blogPostSchema = [
   ogImageAlt={hasFeatureImage ? entry.data.featureImage.alt : null}
   structuredData={blogPostSchema}
   pubDate={entry.data.pubDate}
+  modifiedDate={entry.data.modifiedDate}
 >
   <main class="max-w-4xl mx-auto mb-24">
     <Heading