compoundtutorials
  • Chapter 1: Introduction to Compound
    • 1. What Is Compound?
    • 2. Introducing Comet (Compound V3)
    • 3. What’s Next?
  • Chapter 2: Markets, Utilization & Interest Rates
    • 1. What Is a Market in Comet?
    • 2. Utilization: Balancing Supply & Demand
    • 3. The Kink: A Flexible Threshold
    • 4. Interest Rate Parameters
    • 5. Supply and Borrow Interest Rates vs. Utilization Rate Chart
    • 6. Why This Matters
  • Chapter 3: Hands-On Tutorial (Step by Step)
    • 1. Environment Setup
    • 2. Getting Sepolia ETH and WETH
    • 3. Project Structure
    • 4. Creating the index.js Script
    • 5. Run the Script
    • 6. Next Steps
  • Chapter 4: Repaying, Withdrawing & Managing Your Position
    • 1. Updating index.js
    • 2. Example Usage in Your Main Execution
    • 3. Recap
    • 4. Summary & Best Practices
  • Chapter 5: Using the Compound.js SDK
    • Getting Started
    • Performing Common Actions
  • Chapter 6: Additional Resources
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  1. Chapter 3: Hands-On Tutorial (Step by Step)

1. Environment Setup

In this chapter, you’ll learn—step by step—how to supply WETH as collateral, then borrow USDC from Compound V3 on the Sepolia testnet. Each code snippet is explained in detail, so beginners can follow along easily.

  • Create a new folder for your project and navigate into it:

› mkdir compound-comet-tutorial

› cd compound-comet-tutorial

  • Initialize it as an npm project:

› npm init -y

  • Install the required dependencies:

› npm install ethers dotenv

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