I want to be able to generate Europe compliant invoices within a Flutter App. I understand that for that I need to generate a XML file with a specific structure, and include there a digital signature certification.
Are there any dependencies or thir party solutions that can be integrated in a Flutter app to deal with all this comlexity? Is Docusign the best solution?
It seems that in the near future is going to be more and more necesary for business to use this format, but I cant find an easy and cheap solution.