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Bridge

SUAVE uses a bridge with the Goerli Ethereum network to transfer assets for gas and MEV applications.

The current bridge implementation is meant to enable rapid prototyping. It is not meant for production / mainnet usage.

Components​

The bridge code consists of two components:

  1. on-chain GasBridge contract
  2. off-chain relayerClient

An implementation of a GasBridge smart contract and the trusted relayerClient backend can be found here and here respectively.

The GasBridge solidity is responsible for emitting events that the relayerClient uses as a signal to mint on the SUAVE chain. The relayerClient backend initializes and manages a bridge between two Ethereum chains (rootchain and sidechain) for monitoring and relaying events. The relayerClient code includes functions for tracking events, handling transactions, and managing event states.

interface GasBridge {
    event GasEvent(address indexed sender, uint256 indexed id, uint256 amount);

    function transfer() external payable
}
type relayerClient interface {
    SendTransaction(ctx context.Context, event *GasEvent) (string, error)
    TransactionReceipt(ctx context.Context, hash common.Hash) (*types.Receipt, error)
}