tokenbridge/monitor/utils/web3.js
2020-11-04 14:24:42 +03:00

28 lines
721 B
JavaScript

require('dotenv').config()
const Web3 = require('web3')
const { COMMON_HOME_RPC_URL, COMMON_FOREIGN_RPC_URL } = process.env
const homeProvider = new Web3.providers.HttpProvider(COMMON_HOME_RPC_URL)
const web3Home = new Web3(homeProvider)
const foreignProvider = new Web3.providers.HttpProvider(COMMON_FOREIGN_RPC_URL)
const web3Foreign = new Web3(foreignProvider)
function blockNumberWrapper(web3) {
let blockNumber = null
return async () => {
if (!blockNumber) {
blockNumber = await web3.eth.getBlockNumber()
}
return blockNumber
}
}
module.exports = {
web3Home,
web3Foreign,
getHomeBlockNumber: blockNumberWrapper(web3Home),
getForeignBlockNumber: blockNumberWrapper(web3Foreign)
}