simon0191 / POC-java-gen-invoice

🇨🇴 🧾 POC - Java to Generate XML Electronic Invoice according to DIAN requirements

... It's a proof of concept to check its viability/ease of implementation using Java.

Intro

This project uses GraalVM native-image to generate a standalone executable (native image). The latest image for this project is found in bin/ directory under the name of tota

The goal of this POC is to implement a basic parser from a JSON to XML, the final intend is to use it to generate an electronic invoice following DIAN Standard.

Create Native Image

We use maven for the configuration of this project, there is a maven plugin configured to generate an image when you run mvn package command.

Entry point of the app: InvoiceApplication.java

Usage

./tota -h

Usage: Tota [-h] -i=<inputInvoice> [-o=<outputFile>]
Parse JSON file to an Electronic Invoice XML following DIAN's standard
  -h, --help   Print usage help and exit
  -i, --invoice=<inputInvoice>
               Input file path, should have file format at the end.
                 (path/invoice.json)
  -o, --output=<outputFile>
               Output file (path) + name (default: print to console)

Example using testData

For this repo, a tota --invoice testData/inputData.json wil generate:

Result will be printed to console
<InvoiceControl>
  <invoiceAuthorization>18761112221</invoiceAuthorization>
  <authorizationPeriod>
    <endDate>2030-01-19</endDate>
    <startDate>2019-01-19</startDate>
  </authorizationPeriod>
  <authorizedInvoices>
    <prefix>SETP</prefix>
    <from>990000000</from>
    <to>995000000</to>
  </authorizedInvoices>
</InvoiceControl>

You can specify an output file name, and it will write the xml to it.