// Grab the first doc that matches:
// 4️⃣ WorldCat link (simple construction) https://www.worldcat.org/isbn/9781740583525
// 5️⃣ Amazon / Lonely Planet store links (hard‑coded patterns) const amazonLink = `https://www.amazon.com/dp/$isbn13?tag=YOURAFFILIATE`; const lpStore = `https://shop.lonelyplanet.com/products/$isbn13`; All calls are read‑only, free (except Google Books which has a generous quota). No PDF is ever downloaded. Below is a minimal, ready‑to‑paste component that implements the entire feature. It can be dropped into an existing React project.
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "
return ( <section className="max-w-2xl mx-auto p-6"> <h1 className="text-2xl font-bold mb-4"> Travel‑Guide Finder </h1>
<form onSubmit=handleSearch className="flex gap-2 mb-6"> <input type="text" placeholder="e.g. Lonely Planet India 19th edition" value=query onChange=(e) => setQuery(e.target.value) className="flex-1 p-2 border rounded" aria-label="Search for a travel guide" /> <button type="submit" disabled=loading className="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700" > loading ? "Searching…" : "Search" </button> </form>
<div className="mt-4 flex flex-wrap gap-2"> result.amazonLink && ( <a href=result.amazonLink target="_blank" rel="noopener noreferrer" className="bg-yellow-500 hover:bg-yellow-600 text-white px-3 py-1 rounded" > Buy on Amazon </a> ) result.lpStoreLink && ( <a href=result.lpStoreLink target="_blank" rel="noopener noreferrer" className="bg-green-600 hover:bg-green-700 text-white px-3 py-1 rounded" > Buy on Lonely Planet Store </a> ) result.googlePreview && ( <a href=result.googlePreview target="_blank" rel="noopener noreferrer" className="bg-gray-800 hover:bg-gray-900 text-white px-3 py-1 rounded" > Preview on Google Books </a> ) result.worldCatLink && ( <a href=result.worldCatLink target="_blank" rel="noopener noreferrer" className="bg-indigo-600 hover:bg-indigo-700 text-white px-3 py-1 rounded" > Find in a Library </a> ) </div> </div> </article> ) </section> );