test.json

{
  "@context": "http://schema.org",
  "@type": "Review",
  "author": {
    "@type": "Person",
    "name": "{{page.author}}"
  },
  "datePublished": "{{page.date}}",
  "publisher": {
    "@type": "Organization",
    "name": "blog.codemartin.com",
    "sameAs": "https://blog.codemartin.com"
  },
  "inLanguage": "en",
  "itemReviewed": {
    "@type": "Product",
    "name": "{{page.title}}",
    "description": "{{page.description}}",
    "sku": "{{page.sku}}",
    "isbn": "{{page.isbn}}",
    "brand": "{{page.brand}}",
    "image": "{{page.thumbnailurl}}",
    "review": {
      "author": {
        "@type": "Person",
        "name": "{{page.author}}"
      }
    },
    "aggregateRating": {
      "@type": "AggregateRating",
      "reviewCount": "1",
      "ratingValue": "{{include.rating}}"
    },
    "offers": {
      "@type": "Offer",
      "priceCurrency": "GBP",
      "price": { { "page.price" } },
      "availability": "https://schema.org/InStock",
      "priceValidUntil": "2028-12-02 00:00:00 +0000",
      "url": "{{site.url}}{{page.url}}"
    }
  }
}