lunchpad Factory

A Solidity smart contract factory for deploying ERC20 and ERC721 tokens on the blockchain with simplified token management functionality.

Overview

The Lunchpad Factory is a contract that enables users to deploy standardized ERC20 and ERC721 tokens without needing to write or deploy individual token contracts. The factory maintains a registry of all deployed tokens and provides functionality to verify and track tokens created through the platform.

Features

• ERC20 Token Deployment: Create fungible tokens with customizable name, symbol, and total supply
• ERC721 Token Deployment: Create non-fungible token collections with customizable name and symbol
• Token Registry: Maintains lists of all deployed tokens for easy reference
• Verification System: Provides methods to verify if an address is an ERC20 or ERC721 token created by this factory
• Deployment Tracking: Counts and stores all deployed tokens with their respective addresses
• Event Emission: Emits events when new tokens are deployed for easy tracking off-chain

Contract Functions

ERC20 Token Functions

function deployErc20(string memory _name, string memory _symbol, address _deployer, uint _totalSupply) public

Deploys a new ERC20 token with the specified parameters:

• _name: The name of the token (e.g., "Durant Token")
• _symbol: The token symbol (e.g., "DRT")
• _deployer: The address that will receive the initial token supply
• _totalSupply: The total supply of tokens to be minted

ERC721 Token Functions

function deployErc721(string memory _name, string memory _symbol, address _deployer, string memory _url) public

Deploys a new ERC721 token collection with the specified parameters:

• _name: The name of the NFT collection (e.g., "Durant Collectibles")
• _symbol: The NFT symbol (e.g., "DRTC")
• _deployer: The address that will receive the first minted NFT
• _url: The metadata URL for the first NFT

View Functions

function getDeployedErc20() public view returns(address[] memory)

Returns an array of all ERC20 token addresses deployed by this factory.

function getDeployedErc721() public view returns(address[] memory)

Returns an array of all ERC721 token addresses deployed by this factory.

function isErc20(address _tokenAddress) public view returns(bool)

Checks if the provided address is an ERC20 token deployed by this factory.

function isErc721(address _tokenAddress) public view returns(bool)

Checks if the provided address is an ERC721 token deployed by this factory.

Events

event ERC20Deployed(address indexed erc20Contract, address indexed owner)

Emitted when a new ERC20 token is deployed.

event ERC721Deployed(address indexed erc721Contract, address indexed owner)

Emitted when a new ERC721 token collection is deployed.

Usage Example

// Connect to the contract
const factoryContract = await ethers.getContractAt("FactoryContract", "0x44a5148a7D1E701C8e1052EFbc1869866F66069B");

// Deploy an ERC20 token
await factoryContract.deployErc20(
  "My Token",
  "MTK",
  "0xYourAddressHere",
  ethers.utils.parseEther("1000000") // 1 million tokens
);

// Deploy an ERC721 collection
await factoryContract.deployErc721(
  "My NFT Collection",
  "MNFT",
  "0xYourAddressHere",
  "https://metadata.example.com/token/1"
);

// Get all deployed ERC20 tokens
const erc20Tokens = await factoryContract.getDeployedErc20();
console.log("Deployed ERC20 tokens:", erc20Tokens);

Security Considerations

• This factory deploys standard token implementations without additional security features
• Tokens deployed through this factory inherit any security limitations of the base implementations
• Consider performing a security audit before using in production environments

License

UNLICENSED

Version

Solidity ^0.8.28