Migration of the Epson package from version 3.1.1 to 4.1.1

[souhailtourjmen]

Can you explain why there was a change in syntax between versions 3.1.1 and 4.1.1? What were the objectives or reasons behind this change? If we decide to stay with version 3.1.1, what would be the long-term impact, particularly in terms of support, security, compatibility with new features and performance?

[tr3v3r]

Hello @souhailtourjmen,
Here are the benefits:

1. Get rid of the init and instantiate methods and introduce a new class Printer
2. Printer is as singleton instance of the printer and can be used for single and multiple printing.
3. Printer class provides:
   • print queue on JS side
   • print SDK methods that are now just a proxy from native SDK ( the reason why API updated/changed)
   • error handling which includes description and native error code
   • proper typing

Hope it makes sense.

And sorry, I didn't write a migration guide because lack of time. But it is quite easy, just check the example folder

[souhailtourjmen]

Thank you for the explanation, it makes a lot of sense now!