Token Contracts Repository

This repository contains two smart contracts: a Stablecoin contract and an ERC721Token contract. These contracts are written in Solidity and designed to work on the Ethereum blockchain.

Contracts

Stablecoin.sol

The Stablecoin contract is a basic implementation of a stablecoin with functionalities for minting, transferring, and approving tokens. It also includes features such as pausing the contract, adding minters, and blacklisting addresses.

Key Features:

• Name, Symbol, and Decimals: Configurable during deployment.
• Minting: Only allowed for addresses marked as minters.
• Pausing: Can pause and unpause the contract.
• Blacklist: Prevents certain addresses from interacting with the contract.
• Transfer: Transfer tokens between addresses.
• Approve: Approve another address to spend tokens on behalf of the owner.
• Transfer From: Transfer tokens on behalf of another address.

Events:

• Transfer
• Approval
• Issued

Modifiers:

• notBlacklisted
• onlyOwner
• onlyMinter
• notPaused

Constructor Parameters:

• string memory _name
• string memory _symbol
• uint8 _decimals
• uint _initialSupply
• address _owner

ERC721Token.sol

The ERC721Token contract is an implementation of a non-fungible token (NFT) using the ERC721 standard with enumerable and ownable extensions. This contract allows the minting of tokens with associated short text metadata.

Key Features:

• Minting: Only the contract owner can mint new tokens.
• Text Metadata: Each token can have associated short text metadata.
• Enumerable: Tokens are enumerable.
• Ownable: Ownership of the contract can be transferred.

Functions:

• mint(address to, uint256 tokenId, string memory text)
• tokenText(uint256 tokenId) public view returns (string memory)

Internal Functions:

• _setTokenText(uint256 tokenId, string memory text)

Overrides:

• _beforeTokenTransfer
• _burn
• supportsInterface