msgpack-javascript/example/fetch-example.html at master · forkkit/msgpack-javascript · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <script src="../dist.es5+umd/msgpack.min.js"></script>
  <style>
    main {
      width: 80%;
      margin: 20px auto;
    }
  </style>
</head>

<body>
  <main>
    <h1>Fetch API example</h1>
    <p>Open DevTool and see the console logs.</p>
    <script id="script">
      const MSGPACK_TYPE = "application/x-msgpack";

      const url = "http://127.0.0.1:8080/";

      (async () => {
        // decode()
        {
          const response = await fetch(url);
          const contentType = response.headers.get("content-type");
          if (contentType && contentType.startsWith(MSGPACK_TYPE) && response.body != null) {
            const object = await MessagePack.decodeAsync(response.body);
            console.log("decode:", object);
          } else {
            console.error("Something is wrong!");
          }

        }

        // decodeAsync()
        {
          const response = await fetch(url);
          const contentType = response.headers.get("content-type");
          if (contentType && contentType.startsWith(MSGPACK_TYPE) && response.body != null) {
            const object = MessagePack.decode(await response.arrayBuffer());
            console.log("decodeAsync:", object);
          } else {
            console.error("Something is wrong!");
          }
        }
      })()
    </script>
    <script>
      const script = document.getElementById("script");
      document.write("<pre><code>");
      document.write(script.innerText.replace(/^ {6}/gms, ""));
      document.write("</code><pre>");
    </script>
  </main>
</body>

</html>