Arbitrage

Flash loan arbitrage contract

Setup

• Install Brownie

  python3 -m pip install --user pipx
  python3 -m pipx ensurepath
  # restart your terminal
  pipx install eth-brownie

• Install requirements

  pip install -r requirements.txt

• Install ganache-cli
  • using npm:

  npm install -g ganache-cli

  • or, if you are using Yarn:

  yarn global add ganache-cli

• Create .env file with the following values:
  • PRIVATE_KEY - Private key of the wallet account
  • WEB3_INFURA_PROJECT_ID - Project ID of the Infura project
  • POLYGONSCAN_TOKEN - API key for the polygonscan account

Deploy

Local environment

Deploy the contract to a local development network:

brownie deploy scripts/deploy.py --network development

This will initialize a local ganache environment, which will be cleaned when the script finishes.

Polygon test

Deploy the contract to the Mumbai testnet:

brownie deploy scripts/deploy.py --network polygon-test

The contract can be seen at https://mumbai.polygonscan.com/address/<contract_address>

Polygon main

Deploy the contract to the polygon mainnet:

brownie deploy scripts/deploy.py --network polygon-main

Note: This will remove real money from the account (gas fees)

Test

For running tests, run the following command:

brownie test -s

Note:

• For running on a different network from what's configured as default, the --network flag can be passed.
• The -s flag allow us to get the output printed while running the tests.