json - How to implement sitelink search box -

json - How to implement sitelink search box -

i'm trying implement sitelink search box in site, far not working, code in homepage , in search page

<script type="application/ld+json"> { "@context": "http://schema.org", "@type": "website", "url": "http://www.saludymedicinas.com.mx/", "potentialaction": { "@type": "searchaction", "target": "http://www.saludymedicinas.com.mx/process/buscador.html?search={search_term}", "query-input": "required name=search_term" } } </script>

can tell me why not working?

thank you

i implemented www.proptiger.com. searching term taking user site's search page. issue not seeing suggestion in sitelink search box, 1 suggestion coming typed. mean have wait days.

json scripting