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klaytn

README.md

Klaytn chain light client.

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

LIGHTNODE_SALT User-deployed lightnode salt

DEPLOY_FACTORY Factory-contract address

Instruction

LightNode : A contract used to verify klaytn transactions in the map relay chain

LightNodeProxy is the contract for LightNode upgrade

Build using the following commands:

git clone https://github.com/mapprotocol/map-contracts.git
cd map-contracts/lightlients/klaytn/
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 Proxy
    ✓ lightNodeContract params check
    ✓ lightNode verify Header
    ✓ lightNode updateBlockHeader
    ✓ lightNode updateBlockHeaders
    ✓ lightNode admin Test

     7 passing (15s)

Deploy it with the following command

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

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

Later we deploy the upgrade contract and initialize the contract，run the following command

npx hardhat lightFactoryDeploy --height <init height> --mpt <MPT contract address> --network  <network>

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>