Blockwell

Request Token

ERC20

This contract is an ERC20 token.

Name Request Token
Symbol REQ
Decimals 18
Total Supply 999,966,002 REQ

About link description

The Y-Combinator backed Request Network (REQ) bills itself as a decentralized network for payment requests. The request can be detected and paid in a secure way, without the need for a third party. Requests are saved on an immutable ledger, which acts as a source of truth for accounting and auditing.

Stats

Public Functions 13
Event Types 4
Code Size 22,856 bytes

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Burn Event

Parameters help
_burner
address help
_value
uint help

OwnershipTransferred Event

Parameters help
previousOwner
address help
newOwner
address help

Transfer Event

Parameters help
from
address help
to
address help
value
uint256 help

Functions Expand All Collapse All

transferOwnership keyboard_arrow_up

Parameters help

Name Type
newOwner
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
  function transferOwnership(address newOwner) onlyOwner public {
    require(newOwner != address(0));
    OwnershipTransferred(owner, newOwner);
    owner = newOwner;
  }

balanceOf keyboard_arrow_up

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help constant
Source Code
  function balanceOf(address _owner) public constant returns (uint256 balance) {
    return balances[_owner];
  }

transfer keyboard_arrow_up

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
  function transfer(address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));

    // SafeMath.sub will throw if there is not enough balance.
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
    return true;
  }

allowance keyboard_arrow_up

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help constant
Source Code
  function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
    return allowed[_owner][_spender];
  }

transferFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));

    uint256 _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // require (_value <= _allowance);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = _allowance.sub(_value);
    Transfer(_from, _to, _value);
    return true;
  }

approve keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
  function approve(address _spender, uint256 _value) public returns (bool) {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }

increaseApproval keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_addedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
  function increaseApproval (address _spender, uint _addedValue)
    returns (bool success) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

decreaseApproval keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_subtractedValue
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
  function decreaseApproval (address _spender, uint _subtractedValue)
    returns (bool success) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

transfer keyboard_arrow_up

Parameters help

Name Type
_to
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Requirements help

Source Code
    function transfer(address _to, uint _value)
        public
        validDestination(_to)
        onlyWhenTransferEnabled
        returns (bool) 
    {
        return super.transfer(_to, _value);
    }

transferFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_to
address help
_value
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Requirements help

Source Code
    function transferFrom(address _from, address _to, uint _value)
        public
        validDestination(_to)
        onlyWhenTransferEnabled
        returns (bool) 
    {
        return super.transferFrom(_from, _to, _value);
    }

burn keyboard_arrow_up

Parameters help

Name Type
_value
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

onlyWhenTransferEnabled checks for the following:
Source Code
    function burn(uint _value) 
        public
        onlyWhenTransferEnabled
        returns (bool)
    {
        balances[msg.sender] = balances[msg.sender].sub(_value);
        totalSupply = totalSupply.sub(_value);
        Burn(msg.sender, _value);
        Transfer(msg.sender, address(0x0), _value);
        return true;
    }

burnFrom keyboard_arrow_up

Parameters help

Name Type
_from
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

onlyWhenTransferEnabled checks for the following:

Requirements help

null
Source Code
    function burnFrom(address _from, uint256 _value) 
        public
        onlyWhenTransferEnabled
        returns(bool) 
    {
        assert(transferFrom(_from, msg.sender, _value));
        return burn(_value);
    }

emergencyERC20Drain keyboard_arrow_up

Parameters help

Name Type
token
ERC20 help
amount
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
    function emergencyERC20Drain(ERC20 token, uint amount )
        public
        onlyOwner 
    {
        token.transfer(owner, amount);
    }