Invoice Data Viewer

Project Purpose

This project provides a way to display invoice data from the Hungarian NAV Online Számla system (invoiceData XML) as a multilingual HTML document.
The goal is to make raw invoice data human-readable and understandable in different languages.

What It Is Not

• The project does not generate an official invoice or a printable invoice layout.
• It is only intended for displaying the data in a clear, structured, and user-friendly form.

Key Features

• Multilingual support (e.g., Hungarian, English).
• Easy-to-read formatting of invoice elements.

Installation

npm install nav-invoicedata-to-html

Usage Example

import toHtml from "nav-invoicedata-to-html";

const xml = `...`;       // your invoiceData XML as a string
const lang = "en";       // language code: 'en', 'hu', etc.

const html = toHtml(xml, lang);

/**
 * Converts XML data to HTML format, taking into account the specified language translations.
 * @param {string} xml - XML string
 * @param {string} lang - Language code for translation, e.g., 'en', 'hu'
 * @returns {string} HTML output
 */

Status

Work in progress. The goal is to cover as many elements of the invoiceData schema as possible.