Cross-chain communication is one of the hottest topics in Web3 today. There are many blockchains in Web3, meaning divided liquidity pools and isolated smart contracts that cannot talk across their blockchain environments. Engineering teams worldwide ...
blog.developerdao.com14 min read
Very good tutorial. Couple of fixes to get it work today after some libraries updates^
Due to actual version of OpenZeppelin v5+ its necessary to use 0.8.20+ version of Solidity. 0.8.23 works OK as of now.
Because of the same OppenZeppelin major version change it's necessary to add Ownable super class initialization: in file lib/solidity-examples/contracts/lzApp/LzApp.sol change constructor to constructor(address _endpoint) Ownable(_msgSender()) {
lzEndpoint = ILayerZeroEndpoint(_endpoint);
}
In the scripts section you have to change MyScript name to DeployMumbai and DeploySepolia.
Good tutorial! It's easy to understand with beginner developer. Hope you keep sharing. Many thanks.
Balamurugan Nagarajan
Does LayerZero (LZ) support cross-chain transfers to non-EVM chains?