https://github.com/valerio-vaccaro/greenpos

M5stack based POS for Liquid Securities tokens
https://github.com/valerio-vaccaro/greenpos

bitcoin liquid pos wallet

Last synced: 5 days ago
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M5stack based POS for Liquid Securities tokens

• Host: GitHub
• URL: https://github.com/valerio-vaccaro/greenpos
• Owner: valerio-vaccaro
• License: mit
• Created: 2020-09-13T14:12:37.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2020-10-26T09:34:25.000Z (about 4 years ago)
• Last Synced: 2024-08-10T01:06:42.917Z (3 months ago)
• Topics: bitcoin, liquid, pos, wallet
• Language: Python
• Homepage:
• Size: 244 KB
• Stars: 0
• Watchers: 3
• Forks: 1
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# LiquidSecuritiesPOS

```

  _      _             _     _  _____                      _ _   _

 | |    (_)           (_)   | |/ ____|                    (_) | (_)

 | |     _  __ _ _   _ _  __| | (___   ___  ___ _   _ _ __ _| |_ _  ___  ___

 | |    | |/ _` | | | | |/ _` |\___ \ / _ \/ __| | | | '__| | __| |/ _ \/ __|

 | |____| | (_| | |_| | | (_| |____) |  __/ (__| |_| | |  | | |_| |  __/\__ \

 |______|_|\__, |\__,_|_|\__,_|_____/ \___|\___|\__,_|_|  |_|\__|_|\___||___/

              | |

              |_|    Demo Blockstream AMP POS

 This is an examples of POS terminal using GDK, python and M5Stack board.

             DON'T USE THIS CODE IN PRODUCTION

```

M5stack based POS for Blockstream AMP tokens.

- http.server is not ready for a production service

- we don't show how to add a tls certificate

- configurations and mnemonic are saved in the same file in plain text

- we use error messages in json without specific codes

- connection status is not monitored

- printer is not monitored

- payments request are persisted in a local file

- communication is not encrypted

- messages are not signed

- there is not an authentication phase  

## Install the backend

In a python3 virtual environment install GDK (https://github.com/Blockstream/gdk/releases).

Run the script adding the port number as argument.

`python pos_backend.py 80`

### Available commands

- `/status` return always a static message

- `/assets` return the list of accepted assets

- `/gaid` return Blockstream AMP account GAID

- `/balance` return the balance of subaccount, if `asset` argument is passed return the balance of the selected asset, if not pass the list of known assets

- `/check` check if a payment is performed if the argument `pointer` is passed (and print information using the thermal printer) or return the list of payment requests

- `/address` return an address an save request payment (`name`, `asset`, `amount` arguments can be passed on url)

- `/summary` print the payment request summary on the thermal printer

## Install the firmware

Open `m5green.ino` using Arduino IDE, configure the firmware using your IP and port number.