Augmented Finance Liquidator

This script could be used for automatic search and liquidation of unhealthy loans and earn liquidation penalties in Augmented Finance protocol. You also could use this codebase in your ow liquidation services.

Functionality:

• search for wallets with unhealthy loans
• calculate profits
• output details of unhealthy loan if its profitable to liquidate
• execute liquidation of the loans

For executing liquidations you must provide seed phrases for account with enough amount of tokens for covering debts.

Setup

Copy the .env_example file into a file named .env in the folder of the server

cp .env_example .env

Fill in the data for the database (PostgreSQL) in .env:

DB_NAME=dbname
DB_USER=dbuser
DB_PASSWORD=dbpassword

Fill in the data about the providers in .env:

WEB3PROVIDER_ETH=...
WEB3PROVIDER_BSC=...
WEB3PROVIDER_AVAX=...
WEB3PROVIDER_POLYGON=...
WEB3PROVIDER_PHANTOM=...
WEB3PROVIDER_KOVAN=https://kovan.infura.io/v3/{key}

Fill in the details of the liquidator's wallet. For example:

ACCOUNT_ADDRESS=0x0cB071d0b320FA3C3448b0687648433F78d69819
ACCOUNT_PRIVATE_KEY=279366582a0be629c9061dec7406b6b32ba0d49ee81a04151e8c9c4e5d9d19e7

Run

Install packages and start the server

npm i
npm run build
npm run db:migrate
npm run start

Build image and run in docker container

./start.sh

Testing

Compile the protocol

npm run af:compile

Testing of the liquidator's basic methods

npm run test-liquidator

Testing of the liquidator's revenues estimations

Copy the jest.setup.js file into a file named jest.setup.js in the folder of the server

cp jest.setup.js jest.setup.js

Fill in the data about the provider (had to be for ethereum) and liquidator's wallet in jest.setup.js

process.env = {
  PORT : 5000,
  HOST : '127.0.0.1',
  TEST: 'true',
  TEST_DB: 'sqlite',

  WEB3PROVIDER_ETH: 'https://mainnet.infura.io/v3/{key}',
  ACCOUNT_ADDRESS: '',
  ACCOUNT_PRIVATE_KEY: '',
}

Run the tests:

npm run test-liquidator-estimation

Testing of workers

Testing user monitoring, filling profitable positions for liquidation, liquidation. Works via graphite-worker / graphite-scheduler. (Youn need PostgreSQL database for testing)

Fill the DB_NAME_TEST in .env file (the rest of the data will be taken from DB_USER, DB_PASSWORD.. etc)

DB_NAME_TEST=dbname-test

Run the tests:

npm run test-liquidator-workers