java-defi-bot

java-defi-bot is an application that aims to do beneficial actions on the Ethereum blockchain for the DeFi ecosystem while earning a profit for the user. These actions include maintaining the DAI peg, providing liquidity and liquidating undercollateralized assets.

Getting started

Prerequisites

Java such as Oracle Java

    $ echo $JAVA_HOME
    C:\Program Files\Java\jdk-14.0.1

Connection to Ethereum Network
- Infura Project ID
Alternatives:
- own Ethereum Node
- Quiknode
- AWS
Ethereum Wallet as keystore file including password from services such as MyEtherWallet
Maven

    $ mvn -version
    Apache Maven 3.6.3

Installing

mvn install

Configuration

Update the configuration file ./config.properties

infuraProjectId=
password=
wallet=
transactionsRequireConfirmation=true
playSoundOnTransaction=true
uniswapBuyProfitPercentage=0.5
uniswapSellProfitPercentage=0.5
minimumEthereumReserveUpperLimit=0.20
minimumEthereumReserveLowerLimit=0.10
minimumEthereumNecessaryForSale=1.0
minimumDaiNecessaryForSaleAndLending=250.0
minimumFlipAuctionProfit=50.0
minimumGasPrice=1000000000
maximumGasPrice=30000000000
testProperty=true

Make sure to never commit your config.properties file!

Make git stop tracking your config file git update-index --skip-worktree ./config.properties
Make git start tracking your config file again git update-index --no-skip-worktree ./config.properties

Compile

mvn clean compile assembly:single

Running the tests

All Tests mvn clean test
Unit Tests mvn clean test -DskipITs
Integration Tests mvn clean failsafe:integration-test

Run

Either just run it in the IDE of your choice
or execute the compiled application java -jar java-defi-bot-0.1-jar-with-dependencies.jar and make sure it has access to the config.properties file

Logs

You will find the logs in ./logs.

Current features

sells DAI, if DAI > $1.00 on Oasis oasis.checkIfSellDaiIsProfitableThenDoIt(balances);
buys DAI, if DAI < $1.00 on Oasis oasis.checkIfBuyDaiIsProfitableThenDoIt(balances);
sells DAI, if DAI > $1.00 on Uniswap uniswap.checkIfSellDaiIsProfitableThenDoIt(balances);
buys DAI, if DAI < $1.00 on Uniswap uniswap.checkIfBuyDaiIsProfitableThenDoIt(balances);
earns interest on Compound, if there has been no market action for a while compoundDai.lendDai(balances);
bids on flip auctions, if the auctions offer cheaper ETHflipper.checkIfThereAreProfitableFlipAuctions(balances);

Contribute

Feel free to open merge requests.

Developer Guide

Code Style: Google Java Format
Linting: Sonarlint
Add new smart contracts: web3j
Logging: SLF4J + logback is used as defined in ./src/main/resources/logback.xml
Update Maven Dependencies: mvn versions:use-latest-versions
Show updatable dependencies: mvn versions:display-dependency-updates
Show unused dependencies: mvn dependency:analyze
MakerDAO Documentation
Web3j Documentation
Compound Documentation
DAI Stats
ETH Gas Station
DAI Peg: DAI Descipher
DAI Peg: DAI Stablecoin
Loanscan
Flip auctions

License

This project is licensed under the MIT License - see the LICENSE file for details

13687259221 / java-defi-bot