Signor1

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

interface IERC20 {
    function approve(address _spender, uint256 _value) external;

    function balanceOf(address who) external view returns (uint256 balance);
}

Signor1

import { useState } from "react";
import abi from "./abi.json";
import { ethers } from "ethers";

const contractAddress = "0x9D1eb059977D71E1A21BdebD1F700d4A39744A70";

function App() {
  const [text, setText] = useState("");

  async function requestAccount() {

Signor1

use std::collections::HashMap;

#[derive(PartialEq, Debug)]
pub enum CampaignStatus {
    Inactive,
    Active,
    Completed,
}

#[derive(Debug)]

Signor1

React Hooks (JavaScript)

1. useERC20Permit Hook

For tokens that already inherit ERC20Permit (EIP-2612) Single transaction: No need for separate approve + transferFrom Functions:

generatePermitSignature() - Creates the permit signature depositWithPermit() - Deposits in one transaction

Signor1

(Example: If N = 10, Fee = $0.30 + ($0.15 × 3.16) ≈ $0.77)

---

Real-World EVM Example

Assume:

• Base Fee = $0.30 (covers gas for 1 contract call).
• Variable Fee = $0.15 (your profit margin).

Signor1

Bonding Curve Explained
A bonding curve is a mathematical model that defines the price relationship of a token based on its supply. It determines how the token's price increases as more tokens are bought (minting) and decreases when tokens are sold back (burning). This creates a transparent, algorithmic market maker where:

• Early buyers get lower prices.
• Later buyers pay progressively higher prices.
• Liquidity is programmatically managed.

---

BondCraft’s Bonding Curve

BondCraft uses a linear bonding curve with the formula:

Signor1

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import {Test} from "forge-std/Test.sol";
import {Deployers} from "@uniswap/v4-core/test/utils/Deployers.sol";
import {LotteryPool} from "../src/LotteryPool.sol";
import {PoolPlayHook} from "../src/PoolPlayHook.sol";
import {PoolPlayRouter} from "../src/PoolPlayRouter.sol";
import {MockERC20} from "./mocks/MockERC20.sol";
import {LinkToken} from "chainlink-brownie-contracts/contracts/src/v0.8/shared/token/ERC677/LinkToken.sol";

Signor1

// Import the necessary contracts
import "@uniswap/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol";
import "@uniswap/v3-periphery/contracts/interfaces/ISwapRouter.sol";

// Declare the contract
contract LiquidityExamples {
    // Declare immutable variables
    INonfungiblePositionManager public immutable nonfungiblePositionManager;
    ISwapRouter public immutable swapRouter;

Signor1

pragma solidity ^0.8.0;

import "@uniswap/v4-core/contracts/interfaces/pool/IHook.sol";
import "@uniswap/v4-core/contracts/types/FullMath.sol";

interface IUniswapV4Pool {
    function swap(address recipient, int256 amount0, int256 amount1, bytes calldata data) external;
    function getReserves() external view returns (uint256 reserve0, uint256 reserve1);
}

Signor1

import hre from "hardhat"

// Configuration
const CONTRACT_ADDRESS = "0x05034393f6b1481e3f7e5B93b8d9392016BC2B12";
const QUANTITY = 1;
const REFERRAL_CODE = "";

async function main() {
  try {