Contract Development with Foundry

Now that your environment is set up and funded, let's understand the key Foundry commands we'll be using throughout this tutorial.

Understanding Foundry Commands

forge create

The forge create command is used for deploying smart contracts. Key aspects:

• Requires an RPC URL to specify which network to deploy to
• Needs a private key for transaction signing
• Can handle constructor arguments if your contract needs them
• Returns the deployed contract's address
• Supports contract verification on block explorers

cast send

cast send is used for state-changing interactions with contracts. This includes:

• Sending transactions that modify contract state
• Calling functions that require gas
• Approving token transfers
• Executing contract functions with parameters
• Requires private key for transaction signing

cast call

cast call is for read-only operations that don't modify state:

• Reading contract state variables
• Calling view/pure functions
• Doesn't require gas or transaction signing
• Returns function results immediately
• Useful for verifying contract state

Development Best Practices

1. Always test with small transactions first
2. Save contract addresses in environment variables
3. Double-check network configurations and addresses
4. Monitor transactions in block explorers
5. Keep private keys secure and never commit them

Learn More

For more detailed information:

• Foundry Book
• Avalanche Documentation
• Teleporter Documentation