IERC20

Interface of the ERC20 standard as defined in the EIP.

This includes the optional name, symbol, and decimals metadata.

Functions

Returns the amount of tokens in existence.

function totalSupply() external view returns (uint256);

Returns the amount of tokens owned by account.

function balanceOf(address account) external view returns (uint256);

Moves amount tokens from the caller's account to to.

function transfer(address to, uint256 amount) external returns (bool);

Returns the remaining number of tokens that spender is allowed to spend on behalf of owner

function allowance(address owner, address spender) external view returns (uint256);

Sets amount as the allowance of spender over the caller's tokens.

Be aware of front-running risks: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729

function approve(address spender, uint256 amount) external returns (bool);

Moves amount tokens from from to to using the allowance mechanism. amount is then deducted from the caller's allowance.

function transferFrom(address from, address to, uint256 amount) external returns (bool);

Returns the name of the token.

function name() external view returns (string memory);

Returns the symbol of the token.

function symbol() external view returns (string memory);

Returns the decimals places of the token.

function decimals() external view returns (uint8);

Emitted when value tokens are moved from one account (from) to another (to).

event Transfer(address indexed from, address indexed to, uint256 value);

Emitted when the allowance of a spender for an owner is set, where value is the new allowance.

event Approval(address indexed owner, address indexed spender, uint256 value);