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React Hooks (JavaScript)

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

(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).

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:

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Jumia</title>
	<link rel="stylesheet" href="css/styles.css">
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	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Jumia</title>
	<link rel="stylesheet" href="css/styles.css">
	<link href="https://cdn.jsdelivr.net/npm/remixicon@4.5.0/fonts/remixicon.css" rel="stylesheet" />
	</head>

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Forms</title>
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	<body>

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	<title>School ID Card</title>
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	// 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);
	}

	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() {

	use std::collections::HashMap;

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

	#[derive(Debug)]