How to include Epson SDK for JavaScript in CommonJS project

Question

I have a project with WebPack, where modules are imported with CommonJS structure.

Now I need to import the ePOS_SDK_JavaScript_v2.7.0 library (file "epos-2.7.0.js").
But it is not a valid CommonJS module.

How can I import the library in my project?

Thanks

Answer 1

After some hours I found a simplest solution.

1) edit epos-2.7.0.js file
Insert this row in top of file:

var io = module.exports;

2) import the library
The SDK is not pretty recognized by CommonJS, then it is required to declare the epson variable:

import '../<path>/epos-2.7.0.js';
declare var epson;

For TypeScript projects

import '../<path>/epos-2.7.0.js';
declare var epson: any;