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Cross Chain CAKE Bridging

PancakeSwap uses LayerZero OFT for Cross Chain CAKE Bridging

Contract info

CAKE Bridging Contract

Contract name: CakeProxyOFT Contract address: 0xb274202daBA6AE180c665B4fbE59857b7c3a8091

Example of CAKE bridging to Aptos

sendFrom
function sendFrom(address _from, uint16 _dstChainId, bytes32 _toAddress, uint _amount, uint _minAmount, LzCallParams calldata _callParams) external payable;
Name
Type
Description
_from
address
From address. This should be the address calling the CakeProxyOFT
_dstChainId
uint16
108 for Aptos mainnet
_toAddress
bytes32
The destination address on Aptos
_amount
uint256
Amount of CAKE in WEI. Please note that amounts less than 1e-8 will get dusted
_minAmount
uint256
Minimum receiving amount. We do not charge any fee in CAKE. But this should not be larger than _amount after being rounded down to 8 decimals.
_callParams
tuple
A set of call parameters used to define bridging behaviours. Continue reading for more detail.
sendFrom is a payable function. You will need to pay around 0.005-0.01 in BNB for destination airdrop gas fees. This value will vary based on the price of BNB/APT.
Please note that if you define extra gas being airdropped to your destination address, you will need to increase this number or tx will revert with not enough natives for fees
How to form `_callParams`
{
refundAddress,
zroPaymentAddress,
adapterParams
}
Name
Type
Description
refundAddress
address
Excess fee (BNB) will be returned to this address
zroPaymentAddress
address
0x0000000000000000000000000000000000000000
adapterParams
bytes
A set of parameters to define destination gas airdropping. Continue reading for more detail.
How to form `adapterParams`
{
version,
dstGasLimit,
dstNativeGasTransferAmount,
dstNativeGasTransferAddress
}
Name
Type
Description
version
uint16
Default is 2
dstGasLimit
uint
Default is 200000
dstNativeGasTransferAmount
uint
Amount destination native gas token to airdrop. Use 0 if you don't need the bridge to convert BNB and airdrop you APT
dstNativeGasTransferAddress
bytes
The destination address that receives native gas tokens on destination chain
const adapterParams = utils.solidityPack(
["uint16", "uint", "uint", "bytes"],
[2, 200000, 0, "0xYourAptosAddress"]
)

Utilities