Foundry Cheatsheet

Alpha to the people

Foundry GitHub - https://github.com/foundry-rs
Foundry Book - https://book.getfoundry.sh/
Installing Foundry - https://github.com/foundry-rs/foundry#installation

cast

interacting with a read function / fetching public variables

cast call 0x3Bf196D4C9cB99f6A1F6919Fb4a3be0D7b2C3bfb "owner()"

sending tx

cast send 0x08646dd622e2e2f668d6964aa9e6d05b7561c4ac "prankTransferFrom()" --rpc-url http://127.0.0.1:8545 --private-key $PRIVATE_KEY

Resimulate a boradcasted tranasction

cast run $TXID --rpc-url $RPC_URL

Get contract source code from etherscan

cast etherscan-source $ADDRESS -d ./src

Decode a raw TX

cast --from-rlp $TXRAWDATA

get balance of an address

cast balance vitalik.eth

conver wei to ether

cast --to-unit 1000000000000000 ether

Calculating the 4 bytes hash (signature) of a function.

cast sig "setApprovalForAll(address,bool)"

Output: 0xa22cb465

Get storage slot of a contract at slot 0

cast storage 0x7ceb23fd6bc0add59e62ac25578270cff1b9f619 0

Output: 0x0000000000000000000000000000000000000000000000000000000000000000

forge

Creating a contract

forge create --rpc-url $GOERLI_RPC_URL --private-key $PRIVATE_KEY ./src/MyERC20.sol:MyERC20 --etherscan-api-key $ETHERSCAN_API_KEY --verify

Solidity scripting

forge script ./script/Force.s.sol:ForceScript --private-key $PLAYER --rpc-url $GOERLI_RPC_URL --broadcast

viewing storage slots

forge inspect <path>:<contractName> storage

Get contract sizes for the enitre project

forge build --sizes

anvil

Forking a live network

anvil fork --rpc-url $GOERLI_RPC_URL

Fork at a certain block

anvil fork --rpc-url $GOERLI_RPC_URL --fork-block-number 123456