my goal is to compute the cost of gas for a successful tx.
I get a callback when a transaction succeeds and i retrieve
transactionReceipt.getGasUsed(). Now I need to know the exact gas price that was used for this tx.
It does not seem like gasprice is stored in txreceipt. the gas price (obtained with
transfer.requestCurrentGasPrice()) is in some other place where tx is signed but at that time we would not know the actual gas that will be used. so i wait for
txreceipt to find the actual gas used but i then ran into the issue of not knowing gas price that was used.