omnichain-message-passing (Avalanche <-> Ethereum <-> Polygon via LayerZero)

About

Uses the LayerZero message passing protocol to update and query the application state of satellite chains (Rinkeby [Ethereum] & Mumbai [Polygon]) via a master chain (Fuji [Avalanche]).

                         <--> Rinkeby (ETH Satellite)
                       /
Fuji (AVAX Master) <-->
                       \
                         <--> Mumbai (MATIC Satellite)

For this POC, the maintained state is a simple counter, which is associated with each satellite chain.

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ChainIDs & Endpoints

• Fuji (Avalanche Testnet)
  • chainId: 10006
  • endpoint: 0x93f54D755A063cE7bB9e6Ac47Eccc8e33411d706
• Rinkeby (Ethereum Testnet)
  • chainId: 10001
  • endpoint: 0x79a63d6d8BBD5c6dfc774dA79bCcD948EAcb53FA
• Mumbai (Polygon Testnet)
  • chainId: 10009
  • endpoint: 0xf69186dfBa60DdB133E91E9A4B5673624293d8F8

See all Layer0 official (testnet) endpoint addresses: https://layerzero.gitbook.io/docs/technical-reference/testnet/contract-addresses

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Deployed Contract Addresses

• Fuji (Avalanche Testnet): https://testnet.snowtrace.io/address/0x6606E4ce7f3caEa836970037Df05D1eA9311E138
• Rinkeby (Ethereum Testnet): https://rinkeby.etherscan.io/address/0x4dBCFBe798776FE44b33a1fa94b81f8463D9def0
• Mumbai (Polygon Testnet): https://mumbai.polygonscan.com/address/0xea6e77fBee2D7825377103950D4a4d0161845857

To Make updateCount() & getCount() Calls

• updateCount(): hh run scripts/call_updateCount.ts --network rinkeby
• getCount(): hh run scripts/call_getCount.ts --network rinkeby

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Commands

npx hardhat accounts
npx hardhat compile
npx hardhat clean
npx hardhat test
npx hardhat node
npx hardhat help
REPORT_GAS=true npx hardhat test
npx hardhat coverage
npx hardhat run scripts/deploy.ts --network ropsten
TS_NODE_FILES=true npx ts-node scripts/deploy.ts
npx eslint '**/*.{js,ts}'
npx eslint '**/*.{js,ts}' --fix
npx prettier '**/*.{json,sol,md}' --check
npx prettier '**/*.{json,sol,md}' --write
npx solhint 'contracts/**/*.sol'
npx solhint 'contracts/**/*.sol' --fix