Help with getProductInfo

More on the AntPlus stuff in the OP (which, as explained, isn't directly related to the problem at hand).

I think all the examples on [https://developer.garmin.com/connect-iq/api-docs/Toybox/AntPlus/Device.html] are wrong.

First of all, the class is AntPlus.Device, not AntPlus. Second of all, these appear to be instance methods, not static methods, which means you need an instance of a Device to call them.

I tried the two following calls:

var productInfo = AntPlus.getProductInfo(null);

and

var productInfo = AntPlus.Device.getProductInfo(null);

Both of them resulted in a circular dependency error in the sim, not that I expected either to work.

Regardless, I don't think those function do what you want anyway. AntPlus.Device returns info about external sensors, not the device that the app is running on.

It would probably make more sense to look at a class that inherits AntPlus.Device (not that it's easy to see if you start from Device docs page, since you can only parent classes and not child classes).

e.g. [https://developer.garmin.com/connect-iq/api-docs/Toybox/AntPlus/BikePower.html]

// example from docs

sing Toybox.AntPlus;

// Assuming Valid BikePowerListener object "MyBikePowerListener"

// Initialize the AntPlus.BikePowerListener object
listener = new MyBikePowerListener();

// Initialize the AntPlus.BikePower object with a listener
bikePower = new AntPlus.BikePower(listener);

var calculatedPower = bikePower.getCalculatedCadence();
var calculatedPower = bikePower.getCalculatedPower();

// additional code to try
var productInfo = bikePower.getProductInfo(null);

Is there a way to have a private key to encrypt the data? The project is open sourced,  anyone could see the key that I'm using. If I leave the source file with the key it the .ignore file, I could still technically decode any encrypted data as I have that key. Is there something else unique to the device that I can use?

Have you looked at uniqueIdentifier as mentioned a few posts back?  It's unique not only per device put per app.

If you install the same app on two devices, they each have a different uniqueIdentifier.

Don't include private key in GitHub. Either write in the readme how to generate one when someone wants to compile it, or if it is supposed to report to your server then include a public key and keep the private key just for yourself

Thanks, I'll take a look.

Indeed, that's why I'm looking at another way of encrypting than having a key in GitHub. uniqueIdentifier  seems promising. It also prevents the key from being decrypted/used by simply moving the .SET to another watch.

So maybe this will work, but only on new enough devices that have the uniqueIdentifier.

BTW what data are you storing that is so secret that you need to go this far?

uniqueIdentifier has been available since CIQ 2.4.1, so the only devices that don't have it are a few CIQ 1.x devices

The app needs watches with ICQ 3.2 to work.

It's an app to control a Tesla vehicles from the watch. What is stored is the refresh token that gives access to all the Tesla vehicle the user has access to. This is what can happen with you get a copy of that token

https://gizmodo.com/tesla-hacker-david-colombo-teslamate-tesla-api-keys-1848418767