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4 votes
2 answers
4k views

Is it possible to batch transactions together?

In bitcoin-land, it's advised to batch transactions to send them to (a) reduce fees and (b) reduce network congestion. Does the same apply to ethereum land? It seems that the to can be only one ...
Shamoon's user avatar
  • 281
2 votes
1 answer
449 views

Why estimateGas return 21001 instead 21000?

For example web3.eth.estimateGas({from: eth.coinbase, to: eth.accounts[1], amount: web3.toWei(1, "ether")}) return 21001, but not 21000, so why?
DeV1doR's user avatar
  • 637
17 votes
4 answers
50k views

How to calculate transaction fee?

For calculating the transaction fee using web3js I am using it's gas price: eth.getTransaction("txhash").gasPrice multiplied by how much gas was actually used: eth.getTransactionReceipt("txhash")....
DeV1doR's user avatar
  • 637
10 votes
1 answer
4k views

Using web3, how can you get the tx cost and data/payload for a given transaction?

Using web3, how can you get the Tx cost and data/payload for a given transaction? getTransaction(tx#) returns everything but those 2 values. This information seems to be available via blockchain ...
dbryson's user avatar
  • 6,403