Ethereum Asked by Roman Chumachenko on November 10, 2021
I use Transfer.sendFunds(Web3j, Credentials, BigDecimal, Convert.Unit)
to transfer money. Usually I convert it to flowable. Flowable/RemoteCall completes when transaction is included in block (correct me if I am wrong). So my question actually can be split to two:
Transaction hash is created before the transaction is broadcasted. Transaction hash, as the name says, is just all hashed data for a signed transaction.
Because Ethereum transactions have nonce
parameter you can safely re-broadcast any signed transaction as many times as you want. Miners will mine transactions only in the order of one step nonce increases, nonce = 1, nonce = 2, etc.
Answered by Mikko Ohtamaa on November 10, 2021
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