typescript-sch-exercises-part-2

JohnnyTime's smart contract hacking course part 2 exercises.

Smart Contract Hacking Exercises Guidelines

Structure

• The following repository is a hardhat project
• There are 3 main folders:
  • ./instructions - All the instructions for the exercises
  • ./contracts - The smart contracts of the exercises
  • ./test - The test files to execute the exercises and complete them

Setup & Exercise Execution

Dependencies

• From the root folder run: npm i

RPC NODE - For Mainnet and Goerli Forks

• Sign up to Infura and get an Ethereum Mainnet URL for free.
• Copy the .env-example file and call it .env then set there your Infura URL for:
  • MAINNET - Ethereum Mainnet
  • GOERLI - Goerli Testnet

Exercise Execution

• To execute and test an exercise, run the command npm run [exercise-name] from the root folder
• You can always check all the exercise names in the ./package.json file

Exercise Execution Example

In case you are working on the exercise "oracle-manipulation-2":

• Feel free to create contracts under ./contracts/oracle-manipulation-2/
• Feel free to change ./tests/oracle-manipulation-2/tests.ts file

Execute from the root folder: npm run oracle-manipulation-2 to check if you completed the exercise successfully.

Guidelines

Unless you've been told otherwise in a specific exercise, you may not change the EVM state with special hardhat functionalities (balances, block time, etc...), and you may not change the before and after sections in the test files.

Hardhat Basic Commands

npx hardhat help
npx hardhat test
REPORT_GAS=true npx hardhat test
npx hardhat node