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Heco Relayer

Heco(Huobi eco chain) Relayer is an important character of Poly cross-chain interactive protocol which is responsible for relaying cross-chain transaction from and to Heco chain.

Build From Source

Prerequisites

  • Golang version 1.14 or later

Build

git clone https://github.com/polynetwork/heco_relayer.git
cd heco_relayer
go build -o heco_relayer main.go

After building the source code successfully, you should see the executable program heco_relayer.

Build Docker Image

docker build -t polynetwork/heco_relayer -f Dockerfile ./

This command will copy ./config.json to /app/config.json in the image. So you need to prepare config.json before running this command and you should start the heco-relayer in container basing on the configuration in /app/config.json.

Run Relayer

Before you can run the relayer you will need to create a wallet file of PolyNetwork. After creation, you need to register it as a Relayer to Poly net and get consensus nodes approving your registeration. And then you can send transaction to Poly net and start relaying.

Before running, you need feed the configuration file config.json.

{
  "MultiChainConfig":{
    "RestURL":"http://poly_ip:20336", // address of Poly
    "EntranceContractAddress":"0300000000000000000000000000000000000000", // CrossChainManagerContractAddress on Poly. No need to change
    "WalletFile":"./wallet.dat", // your poly wallet
    "WalletPwd":"pwd" //password
  },
  "HecoConfig":{
    "SideChainId": 2, // heco side chainID registered on poly 
    "RestURL":"https://http-testnet.hecochain.com", // your heco node 
    "ECCMContractAddress":"heco_cross_chain_contract", 
    "ECCDContractAddress":"heco_cross_chain_data_contract",
    "KeyStorePath": "./keystore", // path to store your heco(ethereum) wallet
    "KeyStorePwdSet": { // password to protect your heco(ethereum) wallet
      "0xd12e...54ccacf91ca364d": "pwd1", // password for address "0xd12e...54ccacf91ca364d"
      "0xabb4...0aba7cf3ee3b953": "pwd2" // password for address "0xabb4...0aba7cf3ee3b953"
    },
    "BlockConfig": 20, // blocks to confirm a heco tx
    "HeadersPerBatch": 500, // number of heco headers commited to poly in one transaction at most
    "MonitorInterval": 3, // seconds of ticker to monitor heco chain
    "EnableChangeBookKeeper": false // normally speaking, set this value as false
  },
  "BoltDbPath": "./db", // DB path
  "RoutineNum": 64,
  "TargetContracts": [
    {
      "0xD8aE73e06552E...bcAbf9277a1aac99": { // your lockproxy hash on heco chain
        "inbound": [6], // from which chain allowed
        "outbound": [6] // to which chain allowed
      }
    }
  ]
}

After that, make sure you already have a heco(ethereum) wallet with HT on huobi eco chain. The wallet file is like UTC--2020-08-17T03-44-00.191825735Z--0xd12e...54ccacf91ca364d and you can use geth to create one( ./geth accounts add ). Put it under KeyStorePath. You can create more than one wallet for relayer. Relayer will send transactions concurrently by different accounts.

Now, you can start relayer as follow:

./heco_relayer --cliconfig=./config.json

It will generate logs under ./Log and check relayer status by view log file.