Watching Transactions

A class that allows you to watch a transaction for events and block confirmations.

firstly {
  web3.sendTransaction(transaction: transaction)
}.done { transactionHash in
  let watcher = TransactionWatcher(hash: transactionHash, web3: web3)
  watcher.expectedConfirmations = 3
  watcher.delegate = self
  self.transactionWatcher = watcher
}

A class that will receive updates about a transaction.