GATOMALO

Server for panamanian fiscal printers, written in NodeJS by Roberto E. Zubieta.

Software made in Panama

Summary

1. Install NodeJS (Minimum Version: 7.6.0. Recommended: 8+)
2. sudo npm install yarn -g To enable yarn.
3. yarn install to download all dependencies
4. Fill private.json with your ZOHO books credentials. Use private.sample.json as example.
5. npm run to start the server

Details

• Tested on NodeJS 8.1.2 running on Ubuntu 16.04.2 LTS
• The server entry point is in bin/server.js
• Written in Koa v2

Testing

Includes some minimal unit tests for double-checking the output strings. They can be executed by running npm test

Running through Docker

This server was designed to work directly inside a Docker container. No git pull required.

1. Install Docker
2. Write ./private.env with your Zoho Books credentials. Use ./private.env.sample as example.
3. Execute the following command to start the service:

docker run -p 5000:5000 -v /srv/gatomalo/database:/srv/gatomalo/database \
  --env-file=private.env --device=/dev/ttyUSB0 --restart=always \
  -d zubietaroberto/gatomalo

Details about this command:

• -p binds port to 5000 (Allows entry to the server on localhost:5000)
• -v Saves the database file on /srv/gatomalo/database on the host machine. Otherwise the printed_invoice will be reset whenever the host image changes.
• --env-file adds the contents of private.env as environment variables to the container
• --device name of the USB port where the printer is installed. Must be the same as the one in ./Puerto.txt
• --restart the service will always start with the host computer.
• -d run as a daemon.
• zubietaroberto/gatomalo the name of this image in Docker Hub

Running through docker-compose

An even easier deployment experience.

1. Install Docker
2. Install Docker-Compose
3. mkdir /srv/gatomalo2
4. mkdir /srv/gatomalo2/database
5. cd /srv/gatomalo2
6. Write /srv/gatomalo2/private.env with your Zoho Books credentials. Use ./private.env.sample as example.
7. Copy ./docker-compose.yml into /srv/gatomalo2/
8. Start the service: docker-compose up -d

The docker-compose will install all the dependencies, mount the folder as a volume, create the SQLite database and automatically restart the container when the machine restarts.