Foundry

Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

Foundry consists of:

• Forge: Ethereum testing framework (like Truffle, Hardhat and DappTools).
• Cast: Swiss army knife for interacting with EVM smart contracts, sending transactions and getting chain data.
• Anvil: Local Ethereum node, akin to Ganache, Hardhat Network.
• Chisel: Fast, utilitarian, and verbose solidity REPL.

Documentation

https://book.getfoundry.sh/

Usage

Build

$ forge build

Test

$ forge test

Format

$ forge fmt

Gas Snapshots

$ forge snapshot

Anvil

$ anvil

Deploy

$ forge script script/Counter.s.sol:CounterScript --rpc-url <your_rpc_url> --private-key <your_private_key>

Cast

$ cast <subcommand>

Help

$ forge --help
$ anvil --help
$ cast --help

Compound Staking BBT

A staking contract for BBT tokens with compound interest rewards.

Deployment Instructions

Prerequisites

• Foundry installed
• An Ethereum node URL (Infura, Alchemy, etc.)
• A wallet private key with sufficient ETH for deployment gas

Environment Setup

Create a .env file with the following variables:

PRIVATE_KEY=your_private_key_here_without_0x_prefix
RPC_URL=your_ethereum_node_url
TOKEN_ADDRESS=address_of_bbt_token_contract

Load environment variables:

source .env

Deploy on Mainnet or Testnet

Deploy using an existing token:

forge script script/DeployCompoundStakingBBT.s.sol --rpc-url $TESTNET --broadcast --verify

Or deploy with a mock token (for testing):

forge script script/DeployWithMockToken.s.sol --rpc-url $TESTNET --broadcast --verify

Post-Deployment Steps

1. Verify the contract on Etherscan (if the --verify flag didn't work automatically):

forge verify-contract <DEPLOYED_CONTRACT_ADDRESS> src/CompoundStakingBBT.sol:CompoundStakingBBT --chain-id <CHAIN_ID> --watch

2. Grant the SELLON_ADMIN_ROLE to any additional addresses that need it:

cast send <STAKING_CONTRACT_ADDRESS> "grantRole(bytes32,address)" \
  $(cast keccak "SELLON_ADMIN_ROLE") <NEW_ADMIN_ADDRESS> \
  --rpc-url $RPC_URL --private-key $PRIVATE_KEY

Contract Settings

• Annual Reward Rate: Default is 30%, can be changed by admin
• Wait Time: Default is 1 day (86400 seconds), can be changed by admin