Issue PDF certificates
at scale, automatically

<span class="kw">async function</span> <span class="fn">issueCertificate</span>({ name, course, date, certId }) {
  <span class="kw">const</span> html = <span class="str">`
    &lt;!DOCTYPE html&gt;
    &lt;html&gt;
    &lt;head&gt;
      &lt;style&gt;
        @import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700&family=Lato&display=swap');
        body { background: url('/seal.png') center/cover; font-family: 'Lato', sans-serif; }
        h1 { font-family: 'Playfair Display'; font-size: 48px; color: #1a1a2e; }
      &lt;/style&gt;
    &lt;/head&gt;
    &lt;body style="text-align:center;padding:60px"&gt;
      &lt;h1&gt;Certificate of Completion&lt;/h1&gt;
      &lt;p style="font-size:22px"&gt;This certifies that &lt;strong&gt;${name}&lt;/strong&gt;&lt;/p&gt;
      &lt;p&gt;has completed &lt;strong&gt;${course}&lt;/strong&gt; on ${date}&lt;/p&gt;
      &lt;p style="color:#888;font-size:11px"&gt;Certificate ID: ${certId}&lt;/p&gt;
    &lt;/body&gt;&lt;/html&gt;
  `</span>;

  <span class="kw">const</span> res = <span class="kw">await</span> fetch(<span class="str">'https://api.renderlyapi.com/v1/pdf/from-html'</span>, {
    method: <span class="str">'POST'</span>,
    headers: { <span class="str">'Authorization'</span>: <span class="str">`Bearer ${process.env.RENDERLY_KEY}`</span>, <span class="str">'Content-Type'</span>: <span class="str">'application/json'</span> },
    body: JSON.<span class="fn">stringify</span>({ html, format: <span class="str">'A4'</span>, landscape: <span class="kw">true</span> }),
  });
  <span class="kw">return</span> Buffer.<span class="fn">from</span>(<span class="kw">await</span> res.<span class="fn">arrayBuffer</span>());
}