Enforced transactions

In future upgrades to Scroll, the Enforced Transaction contract will enable sending transactions between L1 and L2 with the sendTransaction function. This contract shares similarities with the Scroll Messenger contract as it allows sending arbitrary data from one layer to the other. However, it distinguishes itself by enabling the relaying of signed transactions and the ability to set the sender (CALLER or msg.sender) on the receiving transaction on Scroll.

Enforced Transactions API

Please visit the npm library for the complete Scroll contract API documentation.

sendTransaction

function sendTransaction(address _target, uint256 _value, uint256 _gasLimit, bytes calldata _data) public payable;

Add an enforced transaction to L2 from an EOA account sender.

Parameter	Description
_target	The address of the target contract to call in L2.
_value	The value passed.
_gasLimit	The maximum gas should be used for this transaction in L2.
_data	The calldata passed to the target contract.

sendTransaction

function sendTransaction(
  address _sender,
  address _target,
  uint256 _value,
  uint256 _gasLimit,
  bytes calldata _data,
  bytes memory _signature,
  address _refundAddress
) public payable;

Add an enforced transaction to L2 by relaying a signature from the sender.

Parameter	Description
_sender	The address of sender who will initiate this transaction in L2.
_target	The address of target contract to call in L2.
_value	The value passed
_gasLimit	The maximum gas should be used for this transaction in L2.
_data	The calldata passed to target contract.
_signature	The signature for the transaction.
_refundAddress	The address to refund exceeded fee.