spell1612 / GST-E-Invoice-JSON-Generator

A script written in NodeJs to generate the JSON required for GST E-Invoice download.

GST E-Invoice JSON Generator

This is a script written in NodeJs to generate the JSON required for GST E-Invoice download. Preview UI implemented in ReactJS.

It uses extremely specific regexes to extract the required information from an unformatted bill.

Update the regexes at scripts\bill-specifics\bill-regex.js for your own use.

Prerquisites

• Currently only supports Windows
• Provide the bills to be parsed, as a .txt file with whatever file name was specified in the .env file.
• Does not require an installed/global node. Uses everything it needs from the bin/ diretory
• Provide the node_binaries.zip binaries grabbed from releases page, and place them in the bin\nodejs\ location.
• Provide a sample E-Invoice JSON file as a template at scripts\assets

Build

• Clone the repository
• Grab the node_binaries.zip from the releases page, extract, and place the contents in bin/nodejs
• cd into the /scripts and preview-gui directories and run npm i in each of them
• Provide a valid GST JSON template with pre filled seller details, and other static information in the /scripts/assets directory
• Provide the appropriate values and file names in .env
• Provide the bills to be parsed, as a .txt file with whatever file name was specified in the .env file.
• Double click Generate JSON.bat to run if using a node binary, or by running node index.js inside the /scripts directory

Run Release

• Grab the latest release
• Provide the bills to be parsed, as a Bills.txt file on the desktop.
• Use Generate JSON.bat to run