EIP 20 Interface

ERC 20 Token Standard Interface https://eips.ethereum.org/EIPS/eip-20

Methods

allowance

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

Get the current allowance from owner for spender

Parameters

Name	Type	Description
owner	address	The address of the account which owns the tokens to be spent
spender	address	The address of the account which may transfer tokens return The number of tokens allowed to be spent (-1 means infinite)

Returns

Name	Type	Description
remaining	uint256	undefined

approve

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

Approve spender to transfer up to amount from src

This will overwrite the approval amount for spender and is subject to issues noted here

Parameters

Name	Type	Description
spender	address	The address of the account which may transfer tokens
amount	uint256	The number of tokens that are approved (-1 means infinite) return Whether or not the approval succeeded

Returns

Name	Type	Description
success	bool	undefined

balanceOf

function balanceOf(address owner) external view returns (uint256 balance)

Gets the balance of the specified address

Parameters

Name	Type	Description
owner	address	The address from which the balance will be retrieved return The balance

Returns

Name	Type	Description
balance	uint256	undefined

decimals

function decimals() external view returns (uint8)

Returns

Name	Type	Description
_0	uint8	undefined

name

function name() external view returns (string)

Returns

Name	Type	Description
_0	string	undefined

symbol

function symbol() external view returns (string)

Returns

Name	Type	Description
_0	string	undefined

totalSupply

function totalSupply() external view returns (uint256)

Get the total number of tokens in circulation

Returns

Name	Type	Description
_0	uint256	The supply of tokens

transfer

function transfer(address dst, uint256 amount) external nonpayable returns (bool success)

Transfer amount tokens from msg.sender to dst

Parameters

Name	Type	Description
dst	address	The address of the destination account
amount	uint256	The number of tokens to transfer return Whether or not the transfer succeeded

Returns

Name	Type	Description
success	bool	undefined

transferFrom

function transferFrom(address src, address dst, uint256 amount) external nonpayable returns (bool success)

Transfer amount tokens from src to dst

Parameters

Name	Type	Description
src	address	The address of the source account
dst	address	The address of the destination account
amount	uint256	The number of tokens to transfer return Whether or not the transfer succeeded

Returns

Name	Type	Description
success	bool	undefined

Events

Approval

event Approval(address indexed owner, address indexed spender, uint256 amount)

Parameters

Name	Type	Description
owner indexed	address	undefined
spender indexed	address	undefined
amount	uint256	undefined

Transfer

event Transfer(address indexed from, address indexed to, uint256 amount)

Parameters

Name	Type	Description
from indexed	address	undefined
to indexed	address	undefined
amount	uint256	undefined