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eth

README.md

MAP Relay Chain light client, deployed on EVM chains.

The following node and npm versions are required

$ node -v
v14.17.1
$ npm -v
6.14.13

Configuration file description

PRIVATE_KEY User-deployed private key

INFURA_KEY User-deployed infura key

Instruction

LightNode contracts for EVM compatible chain sync block and transaction verification

The VerifyTool contract is suitable for parsing the data of the LightNode contract and provides some reliable methods

LightNodeProxy is the contract for LightNode upgrade

Build using the following commands:

git clone https://github.com/mapprotocol/map-contracts.git
cd map-contracts/mapclients/eth/
npm install

Note if you use the eth main network, you can configure ETH_INFURA_KEY, if you don't use it, you can not configure it Edit the .env-example.txt file and save it as .env

Test it with the following command

npx hardhat test

See results similar to the following, proving that the execution was successful

LightNode start test
    √ deploy LightNode
    √ initialize
    √ deploy LightNodeProxy
    √ get test
    √ updateBlockHeader and verifyProofData
    √ add validator
    √ authorizeUpgrade test
    √ delete deploy
    √ verifyProofData error test

     9 passing (15s)

Deploy it with the following command

When you want to deploy LightNode, first run the following command

npx hardhat initializeData --epoch <epoch>  --network <network>

After the execution is successful, check whether the content of the map-contracts/mapclients/eth/deploy/config.js file is similar to the following

map-contracts/mapclients/eth/deploy/config.js

let initData ={"epoch":12,"epoch_size":1000,"threshold":3,"validators":[{"weight":1,"address":"0x053af2b1ccbacba47c659b977e93571c89c49654","g1_pub_key":{"x":"0x25480e726faeaecdba3d09bd8079c17153a99914400ee7c68d6754d29d7832c1","y":"0x2b9804718e2cb3f65221781647a8c3455cf3090519b15a34ef43b1dde7e3c287"}},{"weight":1,"address":"0xb47adf1e504601ff7682b68ba7990410b92cd958","g1_pub_key":{"x":"0x120bf5a2d293b4d444448304d5d04775bfff199676180111112ec0db7f8a6a69","y":"0x2685ac2dc25dc5dd06a6b4777d542d4f4afdf92847b9b7c98f5ecaf4d908f6d7"}},{"weight":1,"address":"0xf655fc7c95c70a118f98b46ca5028746284349a5","g1_pub_key":{"x":"0x03dda4ec969ff7950903131caf2cc0df1d91c569be382cab67df539e94a45835","y":"0x156b522a45ed4a625a7b5906d64046dce1c112a1dddb72972ecb670145a16042"}},{"weight":1,"address":"0xb243f68e8e3245464d21b79c7ceae347ecc08ea6","g1_pub_key":{"x":"0x28681fcac6825e2a6711b2ef0d3a22eae527c41ecccdeb4e69dfff4002219d8b","y":"0x131f98eaf9323bf171e947401f0e6b1951f4c8f8aa525b677f1c811c88358e37"}}]}
module.exports = initData

When using the following command network refers to the name of the network you need to deploy. See networks configuration in hardhat.config.js file for details Note you'll need some testnet funds in your wallet to deploy the contract.

npx hardhat deploy --tags LightNode --network <network>

For Tron network, using the command

npx hardhat tronDeploy --network TronTest

If you want to use the upgrade contract, please execute the following command, pay attention to use the correct network

npx hardhat deploy --tags LightNodeUp --network <network>