JSON-LD Article markup for Bolt CMS

jsonld_article.twig

{# JSON-LD Article markup #}
<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Article",
  "headline": "{{ article.title }}",
  "description": "{{ article.teaser|default('') }}",
  "mainEntityOfPage": "{{ absolute_url(article.link()) }}",
  "author": "{{ article.user.displayname }}",
  "datePublished": "{{ article.datepublish }}",
  "dateModified": "{{ article.datechanged }}",
  "image": [
    "{{ absolute_url(thumbnail(article.image, 300, 300)) }}",
    "{{ absolute_url(thumbnail(article.image, 400, 300)) }}",
    "{{ absolute_url(thumbnail(article.image, 800, 600)) }}"
  ],
  "publisher": {
    "@type": "Organization",
    "name": "{{ config.get('general/sitename') }}",
    "logo": {
      "@type": "ImageObject",
      "url": "",
      "height": "",
      "width": ""
    }
  }
}</script>