An example repo on how to implement LayerZero composed (A-B1-B2) calls, with deployment and wire-up scripts.
Contains:
- script:
- DeployToArbitrum.s.sol: a script for deploying both the Token and Vault contracts to Arbitrum Sepolia testnet
- DeployToBase.s.sol: a script for deploying both the Token and Vault contracts to Base Sepolia testnet
- SetPeers.s.sol: a script for "wiring up" (aka "setting peers") on our contracts so as that they are connected via the LayerZero network
- src:
- Token.sol: our OFT token
- Vault.sol: our OApp contract
- test:
- OptionsBuilder.t.sol: the LayerZero OptionsBuilder used in a test file to easily see our options bytes arrays
[Note: _lzSend and sendCompose are calls to the LayerZero endpoint on the network, arrows between contracts shown for simplicity sake]
Clone the repo to your local machine, and run...
$ forge installUse .example.env to create a .env file...
- add in your own RPC URLs
- add in your block explorer API keys
- add in your Deployer wallet private and public keys
If you are using Base Sepolia and Arbitrum Sepolia then the LayerZero endpoints and IDs are already correct.
The Makefile commands are all currently based upon you having your "deployer" wallet set in foundry. You can do this by running...
$ cast wallet import deployer --interactive...and pasting in your private key. You will be asked for a password, which you can then enter after running forge/cast commands. (You will need to have some test ETH for both Base Sepolia and Arb Sepolia in your deployer wallet! 😉)
The Makefile is structured in order of what commands you need to run, but please note the Makefile comments, as there are some things hardcoded into the scripts that will have to change for your wallet, or if re-deploying the contracts.