FabianSchuessler/java-defi-bot

java-defi-bot is an application that aims to do beneficial actions for the DeFi ecosystem while earning a profit for the user

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