WAV ‐ Waves Token
Table of contents
- Token Contract Information
- How To Watch The Token Contract In Ethereum Wallet / Mist
- How To Watch The Token In Ethereum Wallet / Mist
- How To Check Your Token Balance In Ethereum Wallet / Mist
- How To Transfer Your Tokens In Ethereum Wallet / Mist
- How To Move Your Tokens To The Waves Blockchain In Ethereum Wallet / Mist
- The Token Contract Source Code
- Symbol:
WAV - Name:
Waves Token - Address:
0xe57a41170f18fab3248d623f06bd92b32260fae2 - Decimal places:
8 - Total supply:
100,000,000 - Note that this token can be moved between the Ethereum blockchain (this contract) and the Waves blockchain native token. See https://blockswap.incentloyalty.com/ for further information.
In Ethereum Wallet / Mist, select the CONTRACTS tab and click WATCH CONTRACT to open the Watch contract window. Then:
-
Under CONTRACT NAME, enter
WAV -
Under CONTRACT ADDRESS, enter
0xe57a41170f18fab3248d623f06bd92b32260fae2 -
Copy the Application Binary Interface below and paste it into the JSON INTERFACE text box
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"totalSupply","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"wavesAddress","type":"string"},{"name":"amount","type":"uint256"}],"name":"moveToWaves","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":false,"name":"wavesAddress","type":"string"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"WavesTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]
-
Click OK
In Ethereum Wallet / Mist, select the CONTRACTS tab and click WATCH TOKEN to open the Add token window. Then:
-
Under TOKEN CONTRACT ADDRESS, enter
0xe57a41170f18fab3248d623f06bd92b32260fae2. The additional fields should automatically be filled in. -
Click OK
Watch The Token Contract, then:
- Click on the
WAVcontract - Click on SHOW CONTRACT INFO
- In the READ FROM CONTRACT section and under Balance of:
- Enter the address you want to check the token balance of
- The token balance will be displayed in the Natural Units with 8 decimal places, e.g., 123000000 is 123000000 / 1e8 = 1.23 token units
Watch The Token Contract, then:
- Click on the
WAVcontract - Click on SHOW CONTRACT INFO
- In the WRITE TO CONTRACT section and under Select function:
- Select the Transfer function
- Under to, enter the address you want to transfer the token to
- Under value, enter the amount of tokens you want to transfer. This amount needs to be specified in the natural units with 8 decimal places, e.g., 123000000 is 123000000 / 1e8 = 1.23 token units
- Under Execute from, select the account you want to transfer your tokens from
- Click on Execute, then confirm your transaction
Watch The Token Contract, then:
- Click on the
WAVcontract - Click on SHOW CONTRACT INFO
- In the WRITE TO CONTRACT section and under Select function:
- Select the Move To Waves function
- Under Waves address, enter the correct Waves address you want to transfer the token to
- Under Amount, enter the amount of tokens you want to transfer. This amount needs to be specified in the natural units with 8 decimal places, e.g., 123000000 is 123000000 / 1e8 = 1.23 token units
- Under Execute from, select the account you want to transfer your tokens from
- Click on Execute, then confirm your transaction
The verified source code can be found at 0xe57a41170f18fab3248d623f06bd92b32260fae2 and follows:
pragma solidity ^0.4.8;
// ----------------------------------------------------------------------------------------------
// The Waves / ETH smart contract - to find out more, join the Incent Slack; http://incentinvites.herokuapp.com/
// A collaboration between Incent and Bok :)
// Enjoy. (c) Incent Loyalty Pty Ltd and Bok Consulting Pty Ltd 2017. The MIT Licence.
// ----------------------------------------------------------------------------------------------
// Contract configuration
contract TokenConfig {
string public constant symbol = "WAV";
string public constant name = "Waves";
uint8 public constant decimals = 8; // 8 decimal places, the same as tokens on Wave
uint256 _totalSupply = 10000000000000000;
}
// ERC Token Standard #20 Interface
// https://github.com/ethereum/EIPs/issues/20
contract ERC20Interface {
// Get the total token supply
function totalSupply() constant returns (uint256 totalSupply);
// Get the account balance of another account with address _owner
function balanceOf(address _owner) constant returns (uint256 balance);
// Send _value amount of tokens to address _to
function transfer(address _to, uint256 _value) returns (bool success);
// Send _value amount of tokens from address _from to address _to
function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
// this function is required for some DEX functionality
function approve(address _spender, uint256 _value) returns (bool success);
// Returns the amount which _spender is still allowed to withdraw from _owner
function allowance(address _owner, address _spender) constant returns (uint256 remaining);
// Triggered when tokens are transferred.
event Transfer(address indexed _from, address indexed _to, uint256 _value);
// Triggered whenever approve(address _spender, uint256 _value) is called.
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
contract WavesToken is ERC20Interface, TokenConfig {
// Owner of this contract
address public owner;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
// Functions with this modifier can only be executed by the owner
modifier onlyOwner() {
if (msg.sender != owner) {
throw;
}
_;
}
// Constructor
function WavesToken() {
owner = msg.sender;
balances[owner] = _totalSupply;
}
function totalSupply() constant returns (uint256 totalSupply) {
totalSupply = _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount) returns (bool success) {
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
) returns (bool success) {
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount) returns (bool success) {
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract WavesEthereumSwap is WavesToken {
event WavesTransfer(address indexed _from, string wavesAddress, uint256 amount);
function moveToWaves(string wavesAddress, uint256 amount) {
if (!transfer(owner, amount)) throw;
WavesTransfer(msg.sender, wavesAddress, amount);
}
}