Using JSON-LD to mark up a seach – How to embed multiple query parameters?

Question

I want to enhance a search function's semantic meaning using JSON-LD.

The most popular snippet to do that seems to be this one from Google:

<script type="application/ld+json">
{
   "@context": "http://schema.org",
   "@type": "WebSite",
   "url": "https://www.example-petstore.com/",
   "potentialAction": {
     "@type": "SearchAction",
     "target": "https://query.example-petstore.com/search?q={search_term_string}",
     "query-input": "required name=search_term_string"
   }
}
</script>

While I understood how this works, I am wondering if it's possible to combine the SearchAction markup with other parts of Schema.org's vocabulary.

For example when you can search for a hotel room to be available at a specific point in time, is it possible to embed this information using JSON-LD?

Let's say the search string looks like this: search-hotels-global.com/?s=new-york&start=5-5-15&end?19-5-15, how do I implement it in JSON-LD, can I do it just like this?

{
   "@context": "http://schema.org",
   "@type": "WebSite",
   "url": "https://www.example-petstore.com/",
   "potentialAction": {
     "@type": "SearchAction",
     "target": "search-hotels-global.com/?q={search_term_string}&start={start_date_input}&end={end_date_input",
     "query-input": "required name=search_term_string",
     "query-input": "name=start_date_input",
     "query-input": "name=end_date_input",
   }
}

Answer 1

Not, that's not possible. First of all it's invalid JSON-LD as it uses the same property multiple times in an object (you would need to change the latter two query_inputs to something else) and secondly Google doesn't support multiple URL parameters. You can test it in Google's Structured Data Testing tool at https://developers.google.com/structured-data/testing-tool/