chrome.enterprise.deviceAttributes.getDirectoryDeviceId not working on enrolled chromebox

Question

I'm building a chrome kiosk app in ReactJS that needs to access the deviceId of the device it is running on for logging purposes. I use the following code to call chrome.enterprise.deviceAttributes.getDirectoryDeviceId:

const getDeviceId = (cb) => {
  if (!chrome.enterprise) {
    if (cb) {
      cb();
    }

    return;
  }

  // get device id
  chrome.enterprise.deviceAttributes.getDirectoryDeviceId(assetId => {
    deviceId = assetId;

    if (cb) {
      cb();
    }
  });
};

Afterwards, the function is called by doing something along these lines:

getDeviceId(() => {
  debug('Got device id: %s', deviceId);
});

Now, I know that this code can only work on a enrolled, ChromeOS device. I also know that the chrome.enterprise.deviceAttributes is only available to extensions that are pre-installed by policy. Because of this I can only test it after it is submitted to the ChromeOS store and is installed via the developer dashboard.

Long story short: the above code doesn't return the deviceId and this causes all my api calls to fail, I can't really debug it because it gets installed as a kiosk app. I was wondering if anyone here could tell me what I'm doing wrong and how I can fix this.

Thanks in advance!

Answer 1

My problem was that I was using the code as a synchronous function while it is an asynchronous function. For the correct usage, look at Tom Dunn's answer on here.