08 Feb Ethereum: How to get transaction fee from raw transaction?
Understanding Ethereum transaction rates: how to extract them from unprocessed transactions
Ethereum transaction rates can be a significant part of the total transaction cost for users. While the so -called RPC getrawtransaction provides detailed in this article,
** Why don’t transaction rates include getrawtransaction?
The so -called RPC getrawtransaction recovers a snapshot of all transactions in the Ethereum network at a specific block height. However, it does not include any metadato about the input and output values, such as gas prices or transaction rates. The miner calculates these costs when they validate and execute each block.
Extract the transaction rate from unprocessed transactions
To extract the transaction rate from the results of ‘Getrawtransaction’, you can use a combination of techniques:
1. Analyze the transaction data
The respect getrawtransaction contains a JSON object with several fields, including ‘unpleasant,’ value ‘and’ entrance ‘. .
`JavaScript
Const tx = appeal provider.Getrawtransaction (ID);
Constacciondata = json.pse (tx.body);
constiprice = transactionata.gas;
Consta value = transacciondata.value;
constut = transactionata.input;
// Calculate the transaction rate
CONST TRANSACTIONFEE = GAS - (GASPRICE / 1E8); // convert Wei and divide by 10^8
2. Use a library to analyze transaction data
You can use a library likeEthers.JSO web3jsto analyze and analyze unprocessed transaction data. These libraries provide a more convenient interface to work with Ethereum transactions.
JavaScript
Const ether = Require ('ether');
Const tx = appeal provider.Getrawtransaction (ID);
Constacciondata = ethhers.utils.partensaction (tx);
// Calculate the transaction rate
Const gisprice = ethhers.utils.formatunits (transacciondata.gas, 'gwei'); // convert Wei and format as a number
Consta value = transacciondata.value;
constut = transactionata.input;
CONST TRANSACTIONFEE = GASPRICE - (VALUE / 1E8); // convert Wei and divide by 10^8
3. Use theEthers.library to obtain unprocessed transactions
Alternatively, you can use theEthers. This approach allows greater flexibility in the analysis of the transaction data.
`JavaScript
Const ether = Require ('ether');
Const a provider = new ethhers.providers.jsonrupcprovider ('
Const txid = 'your_tx_id'; // Replace with the real transaction ID
// Obtain unprocessed transactions for a specific block height
Const rawtransactions = appeal provider.getransaction (txid);
// Tour each transaction without processing and extract the transaction rate
rawtransactions.foreach ((transaction) => {
consists gaseprice = transaction.gas;
Consta value = transaction.value;
constut = transaction.input;
// Calculate the transaction rate
CONST TRANSACTIONFEE = GAS - (GASPRICE / 1E8); // convert Wei and divide by 10^8
Console.log (transaction rate for $ {txid}:, transaction);
});
Conclusion
WhileGerawtransactionprovides valuable information about Ethereum transactions, including input and output values, does not directly reveal the transaction rate. JSON OBJECTS OR USE LIBRARIES TO ANALYZE UNMATING TRANSACTIONS DATA, CAN EXTEND THE TRANSACTION RATE OF THESE RESULTS.
Remember to replace the values of the position marker (for example,your_project_id, your_tx_id`) with your real infa project and transaction ID ID respectively.
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