How to signed Transaction

[skywinder]

From @kirti301290 on October 6, 2018 11:12

hello
facing problem how to sign Transaction and get token then sent to server
pls help me

Copied from original issue: BANKEX/web3swift#230

[QA411]

hello, EthereumTransaction.init(gasPrice: 1, gasLimit: 1, to: address!, value: 1, data:NSData) What is it data ? you have Examples?

[kirti301290]

Hello any solution
pls help me

[QA411]

// transactionSign
func transactionSign(nonce :String,gasPrice :String,gasLimit :String,toAddress :String,value :String,privateKeyData :Data,chainID :String,templateData :Data) -> Data {

    var transaction = EthereumTransaction(nonce: BigUInt(nonce)!,
                                          gasPrice: BigUInt(gasPrice)!,
                                          gasLimit: BigUInt(gasLimit)!,
                                          to: EthereumAddress(toAddress)!,
                                          value: BigUInt(value)!,
                                          data: templateData,
                                          v: BigUInt(0),
                                          r: BigUInt(0),
                                          s: BigUInt(0))
    transaction.UNSAFE_setChainID(BigUInt(chainID)!)
    print(transaction)
    try! Web3Signer.EIP155Signer.sign(transaction: &transaction, privateKey: privateKeyData, useExtraEntropy: false)
    print(transaction)
    let encoded:Data? = transaction.encode()
    return encoded!
}

[kirti301290]

@QA411 thank for quick reply
i think you made some custom function
my provider is Rinkeby
what to pass in parameter
chainid - ?
templateData - ?
privateKeyData - ?
thanks

[QA411]

templateData is token user. ETH is nil.
privateKeyData is privateKey

chainid :
public var chainID: BigUInt {
switch self {
case .Custom(let networkID): return networkID
case .Mainnet: return BigUInt(1)
case .Ropsten: return BigUInt(3)
case .Rinkeby: return BigUInt(4)
case .Kovan: return BigUInt(42)
}
}

[BaldyAsh]

I think its done. Closed