vercel__workflow/workbench/fastify/public/index.html

<html>

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Workflow SDK + Nitro Example</title>
  <style>
    textarea {
      width: 100%;
      height: calc(100vh - 140px);
      max-height: calc(100vh - 140px);
      box-sizing: border-box;
      padding: 8px;
      font-family: monospace;
      font-size: 14px;
      resize: none;
      overflow: auto;
    }
  </style>
</head>

<body>
  <h1>Workflow SDK + Nitro Example</h1>
  <hr />
  <textarea id="output" readonly placeholder="output"></textarea>
</body>
<script type="module">
  const outputEl = document.getElementById("output");

  const { runId } = await fetchAndLog('/api/trigger?workflowFile=workflows/0_demo.ts&workflowFn=calc&args=2', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: "",
  });

  if (runId) {
    log('Getting workflow status with runId:', runId);
    await fetchAndLog(`/api/trigger?runId=${runId}`);
  }

  // --- debug utils ---

  function log(...args) {
    outputEl.textContent += args.map(arg => typeof arg === 'string' ? arg : JSON.stringify(arg)).join(" ") + "\n";
  }

  function tryFormatJSON(text) {
    try {
      return JSON.stringify(JSON.parse(text), null, 2);
    } catch {
      return text;
    }
  }

  async function fetchAndLog(input, init) {
    try {
      const req = new Request(input, init);
      log(`[${req.method}] ${input}`);
      const res = await fetch(req);
      const text = await res.text();
      if (res.ok) {
        log("Response:", tryFormatJSON(text));
        return JSON.parse(text);
      } else {
        log("Error", res.status, res.statusText, tryFormatJSON(text));
      }
    } catch (error) {
      log("Fetch error:", error.toString());
    }
    return {}
  }
</script>
</html>