Lyra Integration

Author: David Gimenez Gutierrez

This repository shows a possible integration with the DeFi protocol Lyra

Main project information

Folders

• contracts Contains the 'Strands' contract used in the solution and two test contracts

• test Contains the test scripts to test the requested functionalities

  Part 1

  • Write a hardhat test script that deploys their local test system
  • Buy a call option

  Part 2

  • Wrote a smart contract with a buyStraddle function where you can input the size of the buy and strikeId. The function should take stable coin from the msg.sender and buy both a call and a put of that strikeId in an atomic transaction.

  Part 3

  • Add another test in your test script to use Lyra local test system to test your buyStraddle function

Files

• contracts/Strands.sol Contains the main solution code to implement Part 2 of the requested requirement. Include a description in the comments.

• src/contracts/TestContract.sol and src/contracts/TestContract2.sol These contracts are for testing purposes only

• test/lyraLocalEnvironment.test.js Contains the tests on the requested functionalities for Part 1.

• test/strandsContract.test.js Contains the tests on the requested functionalities for Parts 2 and 3.

Used libraries

• @openzeppelin/contracts: ^4.9.3
• @lyrafinance/protocol: 0.1.5-alpha
• hardhat-dependency-compiler: 1.1.3
• ethereum-waffle: ^4.0.10
• chai: ^4.3.7,
• solc: 0.8.21

Repository setup instructions

1. Install Visual Sutidio Code: https://code.visualstudio.com/

2. Install NodeJS that includes npm: https://nodejs.org/en/download/

3. Install Git that includes bash terminal: https://git-scm.com/download/win

4. Recommended: Set Git bush as you default terminal in VSCode

   • Open the command palette using Ctrl + Shift + P.
   • Type - Select Default Profile
   • Select Git Bash from the options

5. Install the following extensions in VSCode

   • Solidity - Nomic Foundation

6. Clone the repository in the local environment

7. Open project folder in VSCode

8. Install the project dependencies

Test operations

Part 1

npx hardhat test test/lyraLocalEnvironment.test.js

Part 2 and 3

npx hardhat test test/strandsContract.test.js