EIP20Interface

Overview

License: MIT

interface EIP20Interface

Events info

Transfer

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

Approval

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

Functions info

name (0x06fdde03)

function name() external view returns (string memory)

symbol (0x95d89b41)

function symbol() external view returns (string memory)

decimals (0x313ce567)

function decimals() external view returns (uint8)

totalSupply (0x18160ddd)

function totalSupply() external view returns (uint256)

Get the total number of tokens in circulation

Return values:

Name	Type	Description
[0]	uint256	The supply of tokens

balanceOf (0x70a08231)

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

transfer (0xa9059cbb)

function transfer(address dst, uint256 amount) external 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

transferFrom (0x23b872dd)

function transferFrom(
    address src,
    address dst,
    uint256 amount
) external 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

approve (0x095ea7b3)

function approve(
    address spender,
    uint256 amount
) external 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

allowance (0xdd62ed3e)

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)