Token Contract

Key Features

• Token Minting: Controlled minting via MINTER_ROLE with no supply cap.

• Transfer Restriction: Token transfers are initially disabled. Only addresses with TRANSFER_ROLE, the owner, or mint operations can transfer tokens before transfers are enabled. Transfers can be permanently enabled via the admin using enableTransfers().

• Access Control Management: Role-based access control using OpenZeppelin's AccessControlDefaultAdminRules

  • Default Admin: Grants the ability to enable transfers and manage roles.

  • Transfer Role: Addresses assigned TRANSFER_ROLE can execute transfers even when transfers are disabled.

  • Minter Role: Addresses assigned MINTER_ROLE are authorized to mint new tokens.

GitHub - bio-xyz/token-contractsGitHub

Token Contract

Features

• Role-Based Access Control: Implements OpenZeppelin's AccessControlDefaultAdminRules

  • DEFAULT_ADMIN_ROLE: Can enable transfers and manage other roles

  • MINTER_ROLE: Can mint new tokens

  • TRANSFER_ROLE: Can transfer tokens before transfers are enabled

• Controlled Token Transfers:

  • Transfers are initially disabled

  • Only addresses with TRANSFER_ROLE, the owner, or minting operations can transfer tokens when transfers are disabled

  • Transfers can be enabled by admin (one-way operation - cannot be disabled once enabled)

• Token Minting:

  • Controlled minting through MINTER_ROLE

  • No maximum supply cap

Inheritance

• OpenZeppelin's ERC20

• OpenZeppelin's ERC20Burnable

• OpenZeppelin's AccessControlDefaultAdminRules

Key Functions

• mint(address to, uint256 amount): Allows MINTER_ROLE to mint new tokens

• enableTransfers(): Allows admin to enable transfers for all holders

• burn(uint256 amount): Allows token holders to burn their tokens (inherited from ERC20Burnable)