Adding restaurant review metadata to WordPress

I've started adding Restaurant Reviews to this blog - with delicious semantic metadata. Previously I'd been posting all my reviews to HappyCow. It's a great site for finding veggie-friendly food around the worlds, but I wanted to experiment more with the IndieWeb idea of POSSE. So now I can Post on my Own Site and Syndicate Elsewhere.

The Schema.org representation of a Restaurant is pretty simple:

 JSON"itemReviewed": {

    "@type": "Restaurant",

    "name": "Example Bistro",

    "address": "42 Wallaby Way, Sydney",

    "hasMenu": "https://example.com/menu",

    "servesCuisine": "Vegetarian",

    "sameAs": "https://www.example.com/restaurant"

}

There are many more metadata items which could be added - but that's enough for my purposes.

I've written my own WordPress theme to add Semantic Reviews. It gives me a little UI box to add in all the essential data.

Once all that's fed in, it's converted to JSON+LD which looks like this:

 JSON{

    "@context": "https:\/\/schema.org",

    "@type": "Review",

    "author": {

        "@type": "Person",

        "name": "Terence Eden",

        "sameAs": [""]

    },

    "url": "https:\/\/shkspr.mobi\/blog\/?p=44547",

    "datePublished": "2023-01-20T12:34:10+00:00",

    "publisher": {

        "@type": "Organization",

        "name": "Terence Eden\u2019s Blog",

        "sameAs": "https:\/\/shkspr.mobi\/blog"

    },

    "description": "If you've visiting Batu Caves in Kuala Lumpur, I have two tips for you. Firstly, get there as early as possible in order to avoid the heat and other tourists. Secondly, after climbing a mountain of ",

    "inLanguage": "en-GB",

    "itemReviewed": {

        "@type": "Restaurant",

        "name": "Rani Vilas Restaurant Batu Caves",

        "address": "Jalan Batu Caves, Batu Caves, Malaysia, 68100",

        "sameAs": "http:\/\/www.facebook.com\/RaniVilasRestaurantBatuCaves",

        "hasMenu": "https:\/\/www.foodpanda.my\/restaurant\/w1rb\/rani-vilas-restaurant-shop",

        "servesCuisine": "Vegetarian Indian",

        "image": "https:\/\/shkspr.mobi\/blog\/wp-content\/uploads\/2023\/01\/rani.jpg",

        "aggregateRating": {

            "@type": "AggregateRating",

            "ratingValue": "5",

            "reviewCount": "1",

            "worstRating": 0,

            "bestRating": 5

        }

    },

    "reviewRating": {

        "@type": "Rating",

        "worstRating": 0,

        "bestRating": 5,

        "ratingValue": "5"

    },

    "thumbnailUrl": "https:\/\/shkspr.mobi\/blog\/wp-content\/uploads\/2023\/01\/rani.jpg"

}

The somewhat messy code is available on my GitLab. If there's any interest, I might turn it into a separate WordPress plugin.