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Getting Started

First rename the .env.example file in this directory to .env. Replace the API keys as needed.

After adding your api keys, run the following command from your terminal.

source .env

This command allows brownie config to access your environment variables.

Scripts to AAVE Token balances

Run the following command to get token balances for all aave tokens in your account.

brownie run scripts/aave/aave_balances.py

Output:

Brownie v1.19.1 - Python development framework for Ethereum

RushProject is the active project.

Running 'scripts/aave/aave_balances.py::main'...

     Tokens in Account
====================================================================================================
index    Token Name    balance                    address
0        AAVE          100000000000000000000      0x63242B9Bd3C22f18706d5c4E627B4735973f1f07
1        DAI           10000000000000000000000    0xDF1742fE5b0bFc12331D8EAec6b478DfDbD31464
2        LINK          1000000000000000000000     0x07C725d58437504CA5f814AE406e70E21C5e8e9e
3        EURS          1000000                    0xaA63E0C86b531E2eDFE9F91F6436dF20C301963D
4        USDC          10000000000                0xA2025B15a1757311bfD68cb14eaeFCc237AF5b43
5        USDT          10000000000                0xC2C527C0CACF457746Bd31B2a698Fe89de2b6d49
6        WETH          0                          0x2e3A2fb8473316A02b8A297B982498E661E1f6f5
7        WBTC          200000000                  0x8869DFd060c682675c2A8aE5B21F2cF738A0E3CE

     Interest aTokens in Account
====================================================================================================
index    Token Name    balance      address
0        aAAVE         0            0xC4bf7684e627ee069e9873B70dD0a8a1241bf72c
1        aDAI          0            0x310839bE20Fc6a8A89f33A59C7D5fC651365068f
2        aLINK         0            0x6A639d29454287B3cBB632Aa9f93bfB89E3fd18f
3        aEURS         0            0xc31E63CB07209DFD2c7Edb3FB385331be2a17209
4        aUSDC         0            0x1Ee669290939f8a8864497Af3BC83728715265FF
5        aUSDT         0            0x73258E6fb96ecAc8a979826d503B45803a382d68
6        aWETH         0            0x27B4692C93959048833f40702b22FE3578E77759
7        aWBTC         200000000    0xc0ac343EA11A8D05AAC3c5186850A659dD40B81B

     Stable Debt Tokens in Account
====================================================================================================
index    Token Name        balance    address
0        stableDebtAAVE    0          0x4a8aF512B73Fd896C8877cE0Ebed19b0a11B593C
1        stableDebtDAI     0          0xbaBd1C3912713d598CA2E6DE3303fC59b19d0B0F
2        stableDebtLINK    0          0x4f094AB301C8787F0d06753CA3238bfA9CFB9c91
3        stableDebtEURS    0          0x512ad2D2fb3Bef82ca0A15d4dE6544246e2D32c7
4        stableDebtUSDC    0          0xF04958AeA8b7F24Db19772f84d7c2aC801D9Cf8b
5        stableDebtUSDT    0          0x7720C270Fa5d8234f0DFfd2523C64FdeB333Fa50
6        stableDebtWBTC    0          0x15FF4188463c69FD18Ea39F68A0C9B730E23dE81
7        stableDebtWETH    0          0xCAF956bD3B3113Db89C0584Ef3B562153faB87D5

     Variable Debt Tokens in Account
====================================================================================================
index    Token Name          balance               address
0        variableDebtAAVE    0                     0xad958444c255a71C659f7c30e18AFafdE910EB5a
1        variableDebtDAI     0                     0xEa5A7CB3BDF6b2A8541bd50aFF270453F1505A72
2        variableDebtLINK    0                     0x593D1bB0b6052FB6c3423C42FA62275b3D95a943
3        variableDebtEURS    0                     0x257b4a23b3026E04790c39fD3Edd7101E5F31192
4        variableDebtUSDC    0                     0x3e491EB1A98cD42F9BBa388076Fd7a74B3470CA0
5        variableDebtUSDT    0                     0x45c3965f6FAbf2fB04e3FE019853813B2B7cC3A3
6        variableDebtWBTC    0                     0x480B8b39d1465b8049fbf03b8E0a072Ab7C9A422
7        variableDebtWETH    206270138356159747    0x2b848bA14583fA79519Ee71E7038D0d1061cd0F1

If you set up your .env you should see this from your terminal.

Deploying Flashloan Contracts

Keep in mind that all the scripts you will be running for this demo are found in /scripts/aave directory. Read through them to see what they are doing.

The following script will deploy two flashloan contracts. One will be used to flashloan one token at a time SimpleFlashLoan, the other will be used to combine multiple tokens in one flashloan transaction FlashLoan.

brownie run scripts/aave/deploy_flashloan.py

Ouput:

Brownie v1.19.1 - Python development framework for Ethereum

RushProject is the active project.

Running 'scripts/aave/deploy_flashloan.py::main'...
Deploying Simple Rush flashloan receiver contract ...
===============================================
Transaction sent: 0x0a39f260819c1e3a9d71010ccc64ba9bddc4f2d677d0d94b67c5fac9939cb520
  Gas price: 36.756769064 gwei   Gas limit: 541641   Nonce: 90
  FlashLoan.constructor confirmed   Block: 8282174   Gas used: 492401 (90.91%)
  FlashLoan deployed at: 0xD86bF68ADaf5C6389F1e7379700B01217f3f8129

View contract on Optimism Goerli: https://goerli.etherscan.io/address/0xD86bF68ADaf5C6389F1e7379700B01217f3f8129
Transaction was Mined
---------------------
Tx Hash: 0x0a39f260819c1e3a9d71010ccc64ba9bddc4f2d677d0d94b67c5fac9939cb520
From: 0xFE948CB2122FDD87bAf43dCe8aFa254B1242c199
New FlashLoan address: 0xD86bF68ADaf5C6389F1e7379700B01217f3f8129
Block: 8282174
Gas Used: 492401 / 541641 (90.9%)

Excecuting 1M USDC flashloan transaction

Checout out this transaction. After you deploy your contracts, you are ready to submit transactions. The flashloan contracts will receive and repay your loan. Here's an example:

Run command on terminal.

brownie run scripts/aave/simple_flashloan.py

Output:

Brownie v1.19.1 - Python development framework for Ethereum

RushProject is the active project.

Running 'scripts/aave/simple_flashloan.py::main'...
Transaction sent: 0xe0298379f63293c6bb8ec2bfbd147684c3c73087e5ede19eb7409bcd844fcabb
  Gas price: 33.986319221 gwei   Gas limit: 37951   Nonce: 93
  MintableERC20.transfer confirmed   Block: 8282256   Gas used: 34501 (90.91%)

Transaction sent: 0x58180124eadc669c23c0cfa28053e0c79496b48713f0f160734710ace2b92577
  Gas price: 32.188179381 gwei   Gas limit: 209116   Nonce: 94
  Transaction confirmed   Block: 8282267   Gas used: 165364 (79.08%)

Congrats! You have flipped a flashloan. Check it out! https://goerli.etherscan.io/tx/0x58180124eadc669c23c0cfa28053e0c79496b48713f0f160734710ace2b92577

Publish and Verify Contract on Etherscan

Brownie has a simple way to quickly instantly verify your contract on etherscan. Run the following command.

>>> contract = RushFlashLoan.at("0x9db7BcB878E9b3eFDf8FAfcfbbF11a54d80f089c")
>>> contract
<RushFlashLoan Contract '0x9db7BcB878E9b3eFDf8FAfcfbbF11a54d80f089c'>
>>> RushFlashLoan.publish_source(contract)
Verification submitted successfully. Waiting for result...
Verification complete. Result: Pass - Verified
True

Trasaction breakdown

Here the flashloan contract is requesting 1M from the pool provider.

from brownie import accounts, config, network, interface, RushSimpleFlashLoan
from scripts.aave.helper_functions import get_address_provider, get_token, get_account


tx_url = "https://goerli.etherscan.io/tx/{}"
pool = interface.IPool(get_address_provider().getPool())
flashloan_receiver = RushSimpleFlashLoan[len(RushSimpleFlashLoan) -1]
usdc = get_token("USDC")
usdc_amount = 1_000_000 * 10** usdc.decimals()


def run_flashloan():
    dev = get_account()
    receiver = flashloan_receiver.address
    assets = usdc.address
    amount = usdc_amount
    # 'flashLoanSimple': "0x42b0b77c"
    params = "0x42b0b77c"
    referral = 0
    tx = pool.flashLoanSimple(receiver, assets, amount, params, referral, {"from": dev})

Multi Token Flashloans

If you run this command, you can flashloan over 100M+ in tokens. Checkout this transaction.

brownie run scripts/aave/multi_flashloan.py
Brownie v1.19.1 - Python development framework for Ethereum

RushProject is the active project.

Running 'scripts/aave/multi_flashloan.py::main'...
Transaction sent: 0x310974980351e66748421d1ef01b3d940202090525a99630e03150cb9aeae859
  Gas price: 4.924637698 gwei   Gas limit: 1578971   Nonce: 83
  Transaction confirmed   Block: 8265853   Gas used: 1113994 (70.55%)

  Transaction confirmed   Block: 8265853   Gas used: 1113994 (70.55%)

Congrats! You have flipped a flashloan. Check it out! https://goerli.etherscan.io/tx/0x310974980351e66748421d1ef01b3d940202090525a99630e03150cb9aeae859

Go to /scripts/aave/multi_flashloan.py and adjust token amounts. Try it out or yourself.

Support me

If you want to support me, you can. I accept ETH. Currently struggling to find a job.

ETH: msaki.eth 0x04655832bcb0a9a0be8c5ab71e4d311464c97af5

BTC: bc1qafvljh25wxd7ser9vsawzm95aaju883r9twd0p

DOGE: D5y6zYKN4WsWCr4YmnKhAFqCCFC31AN3We

⚠️ WARNING

| I should warn you. You will not make any profits from using flashloans in the current state on this repo.