CryptoRastas - NFT Bridge

ToDos

1. For Abstract chain, there's still missing implementation of set min destination gas and set trusted remote scripts for zksync.
2. Implementing script for set min batch limit for transfering tokens

Available chains

Mainnet

• Ethereum
• Polygon
• Base
• Abstract

Testnet

• Amoy (not deployed)
• Sepolia
• Base Sepolia
• Abstract Testnet (not deployed)

Getting Started

pnpm compile
pnpm typechain
pnpm node

Testing

pnpm test
pnpm test:watch
pnpm test:coverage

Deploying ERC721Mock (optional testnet only)

pnpm hardhat deploy-ERC721-mock --network 11155111 --token-name CryptoRastas222 --token-symbol RASTAS222

Argument	Description	Default
--token-name	Token name	CryptoRastas
--token-symbol	Token symbol	RASTAS
--account-index	Account index to deploy from	0

Step 1 - deploying contracts

Deploy ProxyONFT721 on source chain:

Argument	Description	Default
--proxy-token	Proxy token address (token to be proxied)	[Address]
--min-gas-to-transfer	Min gas required to perform actions on chain	check
--lz-endpoint	L2 endpoint	check
--account-index	Account index to deploy from	0

pnpm hardhat deploy-proxy-ONFT721 --network 1 --proxy-token 0x07cd221b2fe54094277a2f4e1c1bc6df14e63678

and deploy ONFT721 on destination chain:

Argument	Description	Default
--name	Token name	CryptoRastas
--symbol	Token symbol	RASTAS
--account-index	Account index to deploy from	0
--min-gas-to-transfer	Min gas required to perform actions on chain	check
--lz-endpoint	L2 endpoint	check

pnpm hardhat deploy-ONFT721 --network 137 --name Cryptorastas --symbol RASTA

Step 2 - Setting up the bridge

Setting trusted remote address

Set destination chain as trusted remote address on source chain:

Argument	Description	Default
--account-index	Account index to deploy from	0
--core-contract-address	Core Contract address	[Address]
--destination-chain-id	Destination chain id	[ChainId]
--destination-core-contract-address	ONFT721 from destination chain	[Address]

pnpm hardhat set-trusted-remote-address --network 1 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 137 --destination-core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480

repeat the process on the destination chain, to trust the source chain:

pnpm hardhat set-trusted-remote-address --network 137 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 1 --destination-core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480

Setting min gas required

Set destination chain min gas required to perform actions on chain:

Argument	Description	Default
--account-index	Account index to deploy from	0
--core-contract-address	Core Contract address	[Address]
--destination-chain-id	Destination chain id	[ChainId]
--min-destination-gas	Min gas required to perform actions on chain	check
--packet-type	Packet type	1 (send and call)

pnpm hardhat set-min-destination-gas --network 1 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 137

repeat the process on the destination chain, to set min gas required to perform actions on chain:

pnpm hardhat set-min-destination-gas --network 137 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 1

Setting min allowed tokens to batch transfer

Access using block explorer and call the action manually in the contract write section "setDstChainIdToBatchLimit"

Step 3 - Transfer ERC721

Transfer ERC721 to destination chain

Argument	Description	Default
--account-index	Account index to deploy from	0
--token-id	Token id	[TokenId]
--token-address	Token address	[Address]
--core-contract-address	Core Contract address	[Address]
--destination-chain-id	Destination chain id	[ChainId]
--packet-type	Packet type	1 (send and call)

pnpm hardhat transfer-ERC721-to-destination-chain --network 1 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 137 --token-address 0x07cd221b2fe54094277a2f4e1c1bc6df14e63678 --token-id 1

optionally you can transfer back to initial chain

pnpm hardhat transfer-ERC721-to-destination-chain --network 137 --core-contract-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --destination-chain-id 1 --token-address 0xfD691DCf0Cd713986F9218F3dc7aEb5f2b9e7480 --token-id 1

Step 4 - Verifing contracts

Run this command to verify contracts on selected network

pnpm verify --network [networkid] --contract contracts/[ContractName].sol:[Contract] [contractAddress] [arguments]

Step 5 - Set min destination batch limit

normally it should be set to 3 as the maximum dapp accepts todo