I have developed my add-on in scratchpad environment and now developing is finished and I want to create final xpi file.
I replace only this:
Cu.import('resource://gre/modules/ctypes.jsm');
by this:
var {Cu} = require("chrome");
var{ctypes} = Cu.import("resource://gre/modules/ctypes.jsm", null);
Then using nodejs (jpm init and jpm xpi commands) I created xpi file however this is not worked properly.
What we did was follow the jpm tutorial: https://developer.mozilla.org/en-US/Add-ons/SDK/Tutorials/Getting_Started_%28jpm%29 and https://developer.mozilla.org/en-US/Add-ons/SDK/Tools/jpm#Installation
I did this on a Windows system:
We then created a similiar addon to this demo addon here: https://github.com/Noitidart/jpm-chromeworker
I cant share the actuall addon as that was personal to the user. But the above is simpler and shows how to do it.
We did our jsctypes in a chromeworker, and have it communicate with index.js via messaging