Lux Docs

Transaction Types

Type	Description
ETH Transfer	Send native LUX to an address
ERC-20 Transfer	Send tokens to an address
Contract Interaction	Call any contract function with encoded calldata
Batch	Execute multiple operations in a single transaction

Transaction Structure

Each Safe transaction contains:

Field	Type	Description
`to`	address	Destination address
`value`	uint256	Amount of native token (wei)
`data`	bytes	Encoded function call data
`operation`	uint8	0 = Call, 1 = DelegateCall
`nonce`	uint256	Safe transaction nonce

Signing

Transactions are signed off-chain using EIP-712 typed data. Each owner signs the transaction hash, and signatures are collected until the threshold is met.

Transaction Hash = keccak256(
  0x19, 0x01,
  domainSeparator,
  safeTxHash
)

The domain separator is unique to each Safe contract instance and chain.

Execution

Once enough signatures are collected, the transaction is executed by calling execTransaction on the Safe contract:

execTransaction(
  to, value, data, operation,
  safeTxGas, baseGas, gasPrice, gasToken, refundReceiver,
  signatures
)

Signatures are concatenated in ascending order of signer address.

Querying Safe State

Query	Description
`getOwners()`	List all current owner addresses
`getThreshold()`	Current signing threshold
`nonce()`	Next expected transaction nonce
`isOwner(address)`	Check if an address is an owner
`getTransactionHash(...)`	Compute hash for a proposed transaction

Events

Event	Description
`ExecutionSuccess`	Transaction executed successfully
`ExecutionFailure`	Transaction execution reverted
`AddedOwner`	New owner added to the Safe
`RemovedOwner`	Owner removed from the Safe
`ChangedThreshold`	Signing threshold updated

Transaction API