Dhaiwat10

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

interface IVRF {
    function requestRandomness() external returns (uint256 requestId);
}

contract SlotMachine5 {
    IVRF public vrf;
    address public owner;

Dhaiwat10

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract SimpleERC20 {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;
    string private _name;
    string private _symbol;

Dhaiwat10

Links For Learning About Ethereum Scaling Solutions

1. Different Type of Layer 2s by Vitalik Buterin
2. An Incomplete Guide to Rollups by Vitalik Buterin
3. Random Notes around Ethereum Scaling Solutions
4. State Growth

Dhaiwat10

import { useCallback, useEffect, useRef } from 'react'
import { ethers } from "ethers";
import abi from "./api/WavePortal.json";
import React, { useEffect, useState } from "react";
import { Flex, Heading, Text } from '@chakra-ui/react'
import { ConnectButton } from '@rainbow-me/rainbowkit'
import { useAccount, useContract, useSigner } from "wagmi";
import { Input } from '@chakra-ui/react'
import { Image } from '@chakra-ui/react'

Dhaiwat10

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

abstract contract ERC721Lendable is ERC721 {
    struct UserInfo {
        address user; // address of user role
        uint64 expires; // unix timestamp, user expires
    }

    mapping(uint256 => UserInfo) internal _users;

Dhaiwat10

import type { NextApiRequest, NextApiResponse } from 'next';
import Parser from 'rss-parser';
import { HashnodePost } from '../../utils/types';
import { RSS_FEED_URL } from '../../utils/utils';
import { prisma } from '../../lib/prisma';
import { Post } from '@prisma/client';

export default async function handler(
  _req: NextApiRequest,
  res: NextApiResponse

Dhaiwat10

{
  "image": "https://gateway.pinata.cloud/ipfs/QmPrVVinxdtiLq1BymDRTt9HkfcvCUqeM1WboYydDrqGJq",
  "name": "Simple NFT",
  "description": "there is no description lmao",
}

Dhaiwat10

Error: cannot estimate gas; transaction may fail or may require manual gas limit (error={"reason":"processing response error","code":"SERVER_ERROR","body":"{"jsonrpc":"2.0","id":52,"error":{"code":3,"message":"execution reverted: AccessControl: account 0x8d524d9473988731ddda2148f307b450ed022749 is missing role 0x9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6","data":"0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000094416363657373436f6e74726f6c3a206163636f756e7420307838643532346439343733393838373331646464613231343866333037623435306564303232373439206973206d697373696e6720726f6c6520307839663264663066656432633737363438646535383630613463633530386364303831386338356238623861316162346365656566386439383163383935366136000000000000000000000000"}}","error":{"code":3,"data":"0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000

Dhaiwat10

  const provider = new ethers.providers.JsonRpcProvider(
    'https://rpc.ankr.com/polygon_mumbai',
    80001
  );
  const signer = new ethers.Wallet(process.env.PRIVATE_KEY as string, provider);
  const sdk = new ThirdwebSDK(signer, {
    gasless: {
      openzeppelin: {
        relayerUrl: process.env.RELAYER_WEBHOOK_URL as string,
      },

Dhaiwat10

const provider = new ethers.providers.JsonRpcProvider(
    'https://rpc.ankr.com/polygon_mumbai',
    80001
  );
const sdk = new ThirdwebSDK(provider, {
    gasless: {
      openzeppelin: {
        relayerUrl:
          '<my_webhook',
      },