tomarsachin2271

import { ethers } from 'ethers';

// Replace with your actual JSON RPC URL for the Polygon network
const jsonRpcProviderUrl = 'https://rpc.ankr.com/polygon';

// Replace with your actual list of addresses
const addresses = [
    "0xbae8a5e668769ad612f45758306dc1961de9a645",
    "0xc251a9fb38f6272813f7d8b50dfc1b68400764b4",
    "0x931ea9c1f469c56481fa33c23d365092e3f473cb",

tomarsachin2271

import * as shortid from "shortid";
import { v4 as uuidv4 } from "uuid";

const createApiKey = (apiKeyPrefix: string): string =>
    `${apiKeyPrefix}.${uuidv4()}`;


function generateApiKey(): string {
    const apiKeyPrefix = shortid.generate();    
    return createApiKey(apiKeyPrefix);

tomarsachin2271

/**
 *Submitted for verification at BscScan.com on 2021-02-19
*/

pragma solidity ^0.6.2;

interface IERC20 {

    function totalSupply() external view returns (uint256);

tomarsachin2271

// To enable meta transaction, let create a generic method that calls executeMetaTransaction by taking the user signature
// and then execute transaction via Biconomy

// Dependencies
import {toBuffer} from "ethereumjs-util";
import abi from "ethereumjs-abi";
import events from "events";

// Initialization of web3
let web3 = new Web3(window.ethereum);

tomarsachin2271

Keybase proof

I hereby claim:

• I am tomarsachin2271 on github.
• I am sachintomar (https://keybase.io/sachintomar) on keybase.
• I have a public key ASBs8oJiSmyBGKXzb6BY2jGt3DAURUtJDqEG4epUijkI7Qo

To claim this, I am signing this object:

tomarsachin2271

let bookReads = new web3.eth.Contract(abi, address);

bookReads.methods.addToFav(bookId).send({from: userAddress}).on("transactionHash", (hash) => {
    // Get Transaction Hash
}).once("confirmation", (confirmationCount, receipt) => {
    // Get Transaction Confirmation
}).on("error", (error)=>{
    // Error During Transaction
});

tomarsachin2271

biconomy.login(<public wallet address>, (error, response) => {
   if(response.transactionHash) {
     // First time user. Contract wallet transaction pending. Wait for confirmation.
   } else if(response.userContract) {
     // Existing user login successful
   }
});

biconomy.on(biconomy.LOGIN_CONFIRMATION, (log) => {
   // User's Contract Wallet creation successful

tomarsachin2271

biconomy.on(biconomy.READY, () => {
    // Initialize your dapp here
}).on(biconomy.ERROR, (error, message) => {
    // Handle error while initializing mexa
});

tomarsachin2271

import Biconomy from "@biconomy/mexa";
const biconomy = new Biconomy(<web3 provider>,{dappId: <DApp ID>, apiKey: <API Key>});
web3 = new Web3(biconomy);

tomarsachin2271

const subscription = web3.eth.subscribe('logs',{
			topics:['0x5983cdcaa370320b76fe01a3a32a0430e6a13b9f47a55e806afb13b5aef95a12']
		}, function(error, result){
			if(error) {
				console.error(error);
			}
		}).on("data", function(log) {
			console.debug(log);
		});