Lession15 Moralis upgrade need update addEvents.js

[EightMilesZhangjx]

There is no NEXT_PUBLIC_SERVER_URL and master key from now on, since Moralis changed:

(Planned Change​.
From February 1st 2023 the default value of disable_total will be set to true, and unless you specify disable_total=false, the total value will be returned as null.)

I want to upgrade the code but have no idea, can someone help me, thanks.

require("dotenv").config()
const contractAddresses = require("./constants/networkMapping.json")
let chainId = process.env.chainId || 31337
let moralisChainId = chainId == "31337" ? "1337" : chainId
const contractAddress = contractAddresses[chainId]["NftMarketplace"][0]

const serverUrl = process.env.NEXT_PUBLIC_SERVER_URL
const appId = process.env.NEXT_PUBLIC_APP_ID
const masterKey = process.env.masterKey

async function main() {
    await Moralis.start({ serverUrl, appId, masterKey })
    console.log(`Working with contrat address ${contractAddress}`)

    let itemListedOptions = {
        // Moralis understands a local chain is 1337
        chainId: moralisChainId,
        sync_historical: true,
        topic: "ItemListed(address,address,uint256,uint256)",
        address: contractAddress,
.......
const listedResponse = await Moralis.Cloud.run("watchContractEvent", itemListedOptions, {
        useMasterKey: true,
    })