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Version: v. 1

startBroadcast

Signature​

function startBroadcast() external;
function startBroadcast(address who) external;
function startBroadcast(string memory privateKey) external;

Description​

Using the address that calls the test contract or the address / private key provided as the sender, has all subsequent calls (at this call depth only and excluding cheatcode calls) create transactions that can later be signed and sent onchain.

Examples​

function t(uint256 a) public returns (uint256) {
    uint256 b = 0;
    emit log_string("here");
    return b;
}

function deployOther() public {
    vm.startBroadcast(ACCOUNT_A);
    Test test = new Test();

    // will trigger a transaction
    test.t(1);

    vm.stopBroadcast();

    // broadcast again, this time using a private key from your environment variables
    vm.startBroadcast(vm.envString("PRIVATE_KEY"));
    test.t(3);
    vm.stopBroadcast();
}

SEE ALSO​