Overview
The MayanFacet enables cross-chain token transfers using the Mayan Protocol. Mayan provides fast cross-chain swaps with support for non-EVM chains.
Contract Interface
Constants
MAYAN
Returns the address of the Mayan protocol contract.
function MAYAN() external view returns (address)
Bridging Functions
startBridgeTokensViaMayan
Bridges tokens to another chain using Mayan Protocol.
function startBridgeTokensViaMayan(
BridgeData _bridgeData,
MayanData _mayanData
) external payable
Standard bridge data containing transaction details
Mayan-specific bridging parameters
Receiver address on non-EVM chains
Mayan protocol contract address
swapAndStartBridgeTokensViaMayan
Performs a token swap on the source chain before bridging via Mayan.
function swapAndStartBridgeTokensViaMayan(
BridgeData _bridgeData,
SwapData[] _swapData,
MayanData _mayanData
) external payable
Array of swap operations to execute before bridging
Mayan-specific parameters
Data Structures
MayanData
struct MayanData {
bytes32 nonEVMReceiver; // Receiver on non-EVM chains
address mayanProtocol; // Mayan protocol contract
bytes protocolData; // Protocol data
}
Usage Example
import { MayanFacet } from '@lifi/contract-types';
const mayanFacet = MayanFacet__factory.connect(facetAddress, signer);
const bridgeData = {
transactionId: '0x...',
bridge: 'mayan',
integrator: 'my-dapp',
referrer: '0x0000000000000000000000000000000000000000',
sendingAssetId: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', // USDC
receiver: '0x...',
minAmount: ethers.utils.parseUnits('100', 6),
destinationChainId: 501, // Solana
hasSourceSwaps: false,
hasDestinationCall: false
};
const mayanData = {
nonEVMReceiver: '0x...', // Solana address as bytes32
mayanProtocol: '0x...', // Mayan protocol address
protocolData: '0x...'
};
const tx = await mayanFacet.startBridgeTokensViaMayan(
bridgeData,
mayanData,
{ value: 0 }
);
await tx.wait();
Events
The facet emits standard LiFi events:
LiFiTransferStarted(BridgeData bridgeData)LiFiTransferCompletedAssetSwapped (when using swapAndStart variant)BridgeToNonEVMChain (for non-EVM destinations)BridgeToNonEVMChainBytes32 (for non-EVM destinations with bytes32 receiver)
See Also