Advanced on Signet

Execute from Ethereum

Mon, 01 Jan 0001 00:00:00 +0000

The Transactor contract provides guaranteed, censorship-resistant execution on Signet from Ethereum. Any Ethereum account can call Transactor to trigger a transaction on Signet that builders cannot censor or reorder.

Overview

Transactor.sol exposes two function signatures for sending transactions to Signet:

Default Chain

 solidity
 
 
function transact(
 address to,
 bytes calldata data,
 uint256 value,
 uint256 gas,
 uint256 maxFeePerGas
) external payable

This version uses the contract’s defaultRollupChainId configured at deployment.

Bundles

Mon, 01 Jan 0001 00:00:00 +0000

Bundles are ordered sets of transactions that execute atomically. All succeed or all revert. They can span both Signet and Ethereum, enabling cross-chain operations like order fills where both sides must settle in the same block.

Simulating bundles

Mon, 01 Jan 0001 00:00:00 +0000

Once you’ve created a bundle, simulate it against a Signet RPC node before submitting. Simulation lets you verify execution, check profitability, and confirm that order fills are satisfied. The signet_callBundle RPC method is Signet’s equivalent to Flashbots’s eth_callBundle.

Troubleshooting

Mon, 01 Jan 0001 00:00:00 +0000

Common errors and debugging tips for Signet development. Select your language to see relevant code.