Crosschain events

Crosschain Events

Bridge (V2)

Crosschain deposit

• Chain: Source chain
• Contract: ERC20 token to get bridged
• Event: Transfer(address indexed from, address indexed to, uint256 value) in which to is MPC address.

User has sent token to MPC address, waiting for receipt on dest chain.

Param	Type	Description
from	address	token sender
to	address	token receiver, should be the MPC address
value	uint256	deposit amount

Crosschain deposit arrive

• Chain: Destination chain
• Contract: AnyswapV6ERC20
• Event: LogSwapin(bytes32 indexed txhash, address indexed account, uint amount)

Param	Type	Description
txhash	bytes32	transaction hash of source chain deposit event
account	address	address of the receiver
amount	uint	receive amount

Crosschain withdraw

• Chain: Destination chain
• Contract: AnyswapV6ERC20
• Event: LogSwapout(address indexed account, address indexed bindaddr, uint amount)

User has burnt on dest chain, waiting for receipt on source chain.

Param	Type	Description
account	address	token sender
bindaddr	address	token receiver
amount	uint	withdraw amount

Crosschain withdraw arrive

• Chain: Source chain
• Contract: ERC20 token to get bridged
• Event: Transfer(address indexed from, address indexed to, uint256 value) in which from is MPC address.

Param	Type	Description
from	address	token sender, shoud be the MPC address
to	address	token receiver
value	uint256	receive amount

Router (v3)

Crosschain transfer

• Chain: Origin chain
• Contract: AnyswapV6Router Event: LogAnySwapOut(address indexed token, address indexed from, address indexed to, uint amount, uint fromChainID, uint toChainID)

User has burnt his token or locked it in vault, waiting for receipt on target chain.

Param	Type	Description
token	address	address of AnyswapERC20 on origin chain
from	address	sender
to	address	receiver
amount	uint	transfer amount
fromChainID	uint	origin chain ID
toChainID	uint	target chain ID

Crosschain transfer arrive

• Chain: Target chain
• Contract: AnyswapV6Router
• Event: LogAnySwapIn(bytes32 indexed txhash, address indexed token, address indexed to, uint amount, uint fromChainID, uint toChainID)

Param	Type	Description
txhash	bytes32	transaction hash of the crosschain transfer on origin chain
token	address	address of AnyswapERC20 on target chain
to	address	receiver
amount	uint	transfer amount
fromChainID	uint	origin chain ID
toChainID	uint	target chain ID