msgpack javascript example

msgpack.js

function readFile(stream) {
    return new Promise((resolve, reject) => {
      var fr = new FileReader();
      fr.onload = () => {
        resolve(msgpack.decode(new Uint8Array(fr.result)))
      };
      fr.readAsArrayBuffer(stream);
    });
  }

  fetch("/static/m1.msgpack")
    .then(r => r.blob())
    .then(readFile)
    .then(console.log)