Ich führe den grundlegenden Token-Vertrag aus, der unter https://ethereum.org/token zu finden ist :
contract tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData); }
contract MyToken {
/* Public variables of the token */
string public standard = 'Token 0.1';
string public name;
string public symbol;
uint8 public decimals;
uint256 public totalSupply;
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* Initializes contract with initial supply tokens to the creator of the contract */
function MyToken(
uint256 initialSupply,
string tokenName,
uint8 decimalUnits,
string tokenSymbol
) {
balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
totalSupply = initialSupply; // Update total supply
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
decimals = decimalUnits; // Amount of decimals for display purposes
}
/* Send coins */
function transfer(address _to, uint256 _value) {
if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
balanceOf[msg.sender] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
returns (bool success) {
allowance[msg.sender][_spender] = _value;
tokenRecipient spender = tokenRecipient(_spender);
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
if (balanceOf[_from] < _value) throw; // Check if the sender has enough
if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
if (_value > allowance[_from][msg.sender]) throw; // Check allowance
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
allowance[_from][msg.sender] -= _value;
Transfer(_from, _to, _value);
return true;
}
/* This unnamed function is called whenever someone tries to send ether to it */
function () {
throw; // Prevents accidental sending of ether
}
}
Aber wenn ich das Protokoll unter testrpc
oder anschaue web3.eth.getTransactionReceipt(txHash)
, kann ich kein Protokoll oder Ereignis sehen.
Weiß jemand was ich falsch gemacht haben könnte? Irgendwelche bekannten Fehler mit web3 oder testrpc in diesem Thema?
Wird Ether transferiert? Geht es durch? Wenn ja, vergewissern Sie sich, dass die ABIs korrekt sind. Wenn dies Ihr Problem nicht behebt, versuchen Sie, diese Methode zum Überwachen von Ereignissen zu verwenden:
var contract = web3.eth.contract(abi).at(addr);
var transfers = contract.Transfer( {}, {fromBlock: 0, toBlock: 'latest'})
//Watch Events
transfers.watch(function(error, result) {
//Stuff
});
Können Sie Ihren web3-Transaktionscode posten?
Niksmac
eth
gasUsed
auf der Quittung? Haben Sie versucht, das Gas zu erhöhen, und welche Funktion rufen Sie auf?arodriguezdonaire
arodriguezdonaire
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