[Ethereum] Cannot read property ‘match’ or undefined truffle console

soliditytokenstruffle

I want to interact with my contracts through truffle console. I am using test rpc and web3.

Basically for a standard token contract:

contract Token{
       function Token() payable{...}
       function _transfer(...) internal {...}
       function transfer (..) payable{..}
}

i use those command lines in the truffle console:

var contract=null;

Token.new({ from: web3.eth.accounts[0], value: web3.toWei(100, "ether") }).then(function(_contract) { contract = _contract; });

contract.transfer('address of another testrpc accounts', 10, { from: web3.eth.accounts[0], value: web3.toWei(100, "ether") })

Then i got a "Cannot read property 'match' or undefined truffle console" error.

I am lost now because the getters of my contract are actually working.. (ex: token.get_balance.call(..) )

Any idea? Does the syntax of truffle console has changed recently?

Thks.

Best Answer

I'm pretty sure you need to specify the to field in the data.

So if you were to move funds from your coinbase account to your second account you would do:

contract.transfer(web3.eth.accounts[1], 10, { from: web3.eth.accounts[0],to:web3.eth.accounts[0], value: web3.toWei(100, "ether") })

Related Solutions

[Ethereum] Problem with Truffle Console: Cannot read property ‘call’ of undefined

If you are running the latest version of Truffle (v.3.x), the way to call a function or variable in your contract has evolved a little bit according to the Upgrading documentation

In Truffle 2.0, your contract abstractions managed your networks in a naive way, and added constructs like a "default network" that opened up the possibility of using the wrong network artifacts and deployed addresses at the wrong time. This provided a fancy and easy to use syntax – i.e., MyContract.deployed().myFunction(...) – but it left your code open to errors. Truffle 3.0 changes this syntax, where .deployed() is now thennable, like a promise (see example below). Similarly, this makes your contract abstractions seamlessly integrate with EIP 190, Ethereum's package management standard. All of this is for the better, but it means you'll have some changes to make all across the board.

So in your case, if you want to call a function, you have to do this:

HelloWorld.deployed().then(function(instance) {
    return instance.balance.call();
}).then(function(balance) {
    console.log(balance);
});

Please refer to the latest documentation for more details.

[Ethereum] Problem with truffle console : Cannot read property ‘call’ of undefined

You don't have a method called "balance" but "getBalance" with an address argument "_user", so you need to call it this way:

HelloWorld.deployed().getBalance.call('YOUR_ADDRESS')

Best Answer

Related Solutions

[Ethereum] Problem with Truffle Console: Cannot read property ‘call’ of undefined

[Ethereum] Problem with truffle console : Cannot read property ‘call’ of undefined

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