Advise on how to save my ticket in XML

V5 Question
1

I am now issuying my tickets on an epson matricial ticket printer.

This paper ticket is the legal document for the tax office.
It is a 3 paper roll:

  • a witness copy kept in the printer
  • 1 or 2 copy for the customer

As from August, the 1st, I have to enter the electronic-billing system, which mainly consists of:

  • sending all the tickets in XML format to the tax office at the end of the day
  • printing a simple ticket (termal printer) containing the information for the customer to see (QR code + web) or to receive (email) his electronic bill

Before starting this (big) work, I would like to ask you some advise on you would do, mainly for the XML conversion.

To have an idea of the XML format, it’d be worth to have a look on this link (Pag. 18:there is an exemple)

http://contenido.app.sunat.gob.pe/insc/ComprobantesDePago+Electronicos/Guias_manualesabr2013/Guia+XML+Factura+version+2+0.pdf

This is the xml format for one type of bill, it’s just one part of the work.

Some ideas/question/doubt before starting

  • I am used to Unix, so unaware of windows programming
  • I can do script (sed, awk), standard C, some other.
  • I struggle with OO (classes, etc , although I know xml-classes could be easilly integrated)
  • I have never programmed on windows however that’s where SambaPOS runs, so …
  • I like simple tasks (windows) OS version independant.
  • I am lost in big IDE like eclipse, …
  • Is there already existing module that can be reused
  • Integration with/in SambaPOS or Separate program that takes the daily ticket text file as input to produce and send xml
    …
2

Take a look at my PMS ingergration, I have a script which generates json string itemised by orders grouped by tickets for passing sales data to our PMS. It wouldn’t be hard to generate xml instead.
If I went back and did it again I’d build an array and json stringify instead of handling strings but was less experianced when initially made.
Pretty sure there is a xml equivalent to stringify.
Also I took data direct from SQL but now with gql it would probably be better to use that to call info.

3

Just curious what country are you in? Your country seems pretty serious about tax even for smaller vendors like restaurants.

4

Yes … it’s still a very informal country and they want to be more catolic than the Pope …
It’s Peru.

5

Can you tell me where I can find it ?

Thx, Marc

6

It’s a long topic, kendashs and q helped me allot as before this had never used jscript/Java and only ever have minimal SQL experience.

With the addition of graphql there are likely improvements removing the need to the SQL queries and improvements but been almost 2 years since we went live with it and other than the odd update for PMS API changes or minor tweaks to account for unforseen events.