Used to create your channel on the EPNS

createChannel.js

require("dotenv").config();
const Ipfs = require("nano-ipfs-store");
const ethers = require("ethers");
const epnsAbi = require("../abis/epnsAbi.json");
const daiAbi = require("../abis/daiAbi.json");
const { EPNS_PROXY_ADDRESS, PROVIDER } = require("../constants");

async function createChannel() {
  const channelName = "News Channel";

  const channelInfo =
    "This channel sends you the latest news on blockchain and cryptocurrency every 30 minutes";

  const channelURL = "https://medium.com";
  const channelFile = <CHANNEL_IMAGE>
        
  const input = JSON.stringify({
    name: channelName,
    info: channelInfo,
    url: channelURL,
    icon: channelFile,
  });
  const ipfs = Ipfs.at("https://ipfs.infura.io:5001");

  const storagePointer = await ipfs.add(input);

  const MOCK_DAI = "0xf80A32A835F79D7787E8a8ee5721D0fEaFd78108";
  const MOCK_DAI_ABI = daiAbi;

  const EPNS_CONTRACT_ABI = epnsAbi;
  const EPNS_CONTRACT_ADDR = EPNS_PROXY_ADDRESS;

  const fees = ethers.utils.parseUnits(String(50));
  const userPK = process.env.PRIVATE_KEY;
  const wallet = new ethers.Wallet(userPK, PROVIDER);

  const EPNS_CONTRACT = new ethers.Contract(
    EPNS_CONTRACT_ADDR,
    EPNS_CONTRACT_ABI,
    wallet
  );
  const DAI_CONTRACT = new ethers.Contract(MOCK_DAI, MOCK_DAI_ABI, wallet);

  epnsContractWithSigner = EPNS_CONTRACT.connect(wallet);
  daiContractWithSigner = DAI_CONTRACT.connect(wallet);

  const channelType = 2; // Open Channel
  const identity = "1+" + storagePointer; // IPFS Storage Type and HASH
  const identityBytes = ethers.utils.toUtf8Bytes(identity);

  // Approve the DAI to stake
  let tx = await daiContractWithSigner.approve(EPNS_CONTRACT_ADDR, fees);
  
  // Wait till the transaction completes
  await tx.wait();

  //Create the Channel
  const txs = await epnsContractWithSigner.createChannelWithFees(
    channelType,
    identityBytes,
    { gasPrice: 100000000000, gasLimit: 8000000 }
  );

  console.log(txs);
}

createChannel();