feat: add dataset structured data as JSON-LD to landing page.

internal/engine/templates/layout.go.html

@@ -8,26 +8,26 @@
 
     <title>{{ .Config.Title }} (OGC API)</title>
 
-    <!-- Canonical -->
+    <!-- canonical -->
     <link rel="canonical" href="{{ .Config.BaseURL }}" />
     {{ range $lang := .Config.AvailableLanguages }}
         <link rel="alternate" hreflang="{{ $lang }}" href="{{ $.Config.BaseURL }}?lang={{ $lang }}" />
     {{ end }}
 
-    <!-- CSS -->
+    <!-- css -->
     <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"
           integrity="sha384-rbsA2VBKQhggwzxH7pPCaAqO46MgnOM80zW1RWuH61DGLwZJEdK2Kadq2F9CUG65" crossorigin="anonymous">
     <link href="css/gokoala.css" rel="stylesheet">
 
-    <!-- Favicons -->
+    <!-- favicons -->
     <link rel="icon" type="image/png" sizes="32x32" href="img/favicon-32x32.png">
     <link rel="icon" type="image/png" sizes="16x16" href="img/favicon-16x16.png">
     <link rel="shortcut icon" href="img/favicon.ico">
 
-    <!-- Open Graph -->
+    <!-- open graph -->
     <meta property="og:type" content="website" />
     <meta property="og:url" content="{{ .Config.BaseURL }}" />
-    <meta property="og:title" content="{{ unmarkdown .Config.Title }} (OGC API)" />
+    <meta property="og:title" content="{{ .Config.Title }} (OGC API)" />
     <meta property="og:description" content="{{ unmarkdown .Config.Abstract }}" />
     <meta property="og:image" content="img/logo-opengraph.png" />
     <meta property="og:image:type" content="image/png" />
@@ -135,7 +135,7 @@
     <!-- main content -->
     <main id="main">
         <div class="container py-3">
-            <!-- Include content -->
+            <!-- include content -->
             {{block "content" .}}{{end}}
         </div>
     </main>

internal/ogc/common/core/templates/landing-page.go.html

@@ -1,5 +1,29 @@
 {{- /*gotype: github.com/PDOK/gokoala/internal/engine.TemplateData*/ -}}
 {{define "content"}}
+
+{{/* see https://developers.google.com/search/docs/appearance/structured-data/dataset */}}
+<script type="application/ld+json">
+{
+    "@context": "https://schema.org/",
+    "@type": "Dataset",
+    "name": "{{ .Config.Title }} (OGC API)",
+    "description": "{{ unmarkdown .Config.Abstract }}",
+    "url": "{{ .Config.BaseURL }}?f=html",
+    {{- if .Config.Keywords -}}
+    "keywords": ["{{ .Config.Keywords | join ", " }}"],
+    {{- end -}}
+    "license": "{{ .Config.License.URL }}",
+    "isAccessibleForFree": true,
+    "version": "{{ .Config.Version }}",
+    {{- if .Config.Support -}}
+    "creator":{
+        "@type":"Organization",
+        "name":"{{ .Config.Support.Name }}"
+    }
+    {{- end -}}
+}
+</script>
+
 <hgroup>
     <h1 class="title" id="title">{{ .Config.Title }} (OGC API)</h1>
 </hgroup>