Fee Vaults

Fee vaults are simple contracts that collect the three types of fees in Citrea.

You can find these contracts in the following addresses.

Fee Vault	Address
BaseFeeVault	0x3100000000000000000000000000000000000003
L1FeeVault	0x3100000000000000000000000000000000000004
PriorityFeeVault	0x3100000000000000000000000000000000000005

Currently all these three contracts have the same logic, yet they can be upgraded in case the need arises to do a programmatic redirection of fees.

State Structure

address public recipient;

Address to send the accumulated fees.

---

uint256 public minWithdraw;

Minimum required fee amount to be accumulated in the contract before it can be withdrawn to the recipient address, this is 0 by default.

Access Control Structure

modifier onlyOwner()

Ensures that only the contract owner can call the function (inherited from Ownable).

Functions

function withdraw() external

Sends the accumulated fees to recipient address.

---

function setRecipient(address _recipient) external onlyOwner

Changes the recipient address.

Parameters	Description
address _recipient	Address of the new recipient

---

function setMinWithdraw(uint256 _minWithdraw) external onlyOwner

Changes the minimum withdraw amount.

Parameters	Description
uint256 _minWithdraw	New minimum withdraw amount

Events

event RecipientUpdated(address oldRecipient, address newRecipient)

Emitted when the recipient address is changed.

Parameters	Description
address oldRecipient	Old recipient address
address newRecipient	New recipient address

---

event MinWithdrawUpdated(uint256 oldMinWithdraw, uint256 newMinWithdraw)

Emitted when the minimum withdraw amount is changed.

Parameters	Description
uint256 oldMinWithdraw	Old minimum withdraw amount
uint256 newMinWithdraw	New minimum withdraw amount