mirror of https://github.com/hyperledger/besu
An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client https://wiki.hyperledger.org/display/besu
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79 lines
3.4 KiB
79 lines
3.4 KiB
const Web3 = require('web3')
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const ethTx = require('ethereumjs-tx')
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const readline = require('readline');
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async function askQuestion(query) {
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const rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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});
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return new Promise(resolve => rl.question(query, ans => {
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rl.close();
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resolve(ans);
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}))
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}
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const args = process.argv.slice(2);
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// web3 initialization - must point to the HTTP JSON-RPC endpoint
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var provider = args[0] || 'http://localhost:8545';
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console.log("******************************************");
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console.log("Using provider : " + provider);
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console.log("******************************************");
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var web3 = new Web3(new Web3.providers.HttpProvider(provider))
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web3.transactionConfirmationBlocks = 1;
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// Sender address and private key
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// Second acccount in dev.json genesis file
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// Exclude 0x at the beginning of the private key
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const addressFrom = '0x627306090abaB3A6e1400e9345bC60c78a8BEf57'
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const privKey = Buffer.from('c87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3', 'hex')
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// Receiver address and value to transfer
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// Third account in dev.json genesis file
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const addressTo = '0xf17f52151EbEF6C7334FAD080c5704D77216b732'
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const valueInEther = 2
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// Get the address transaction count in order to specify the correct nonce
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web3.eth.getTransactionCount(addressFrom, "pending").then((txnCount) => {
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// Create the transaction object
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var txObject = {
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nonce: web3.utils.numberToHex(txnCount),
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gasPrice: web3.utils.numberToHex(1000),
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gasLimit: web3.utils.numberToHex(21000),
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to: addressTo,
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value: web3.utils.numberToHex(web3.utils.toWei(valueInEther.toString(), 'ether'))
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};
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// Sign the transaction with the private key
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var tx = new ethTx(txObject);
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tx.sign(privKey)
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//Convert to raw transaction string
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var serializedTx = tx.serialize();
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var rawTxHex = '0x' + serializedTx.toString('hex');
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// log raw transaction data to the console so you can send it manually
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console.log("Raw transaction data: " + rawTxHex);
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// but also ask you if you want to send this transaction directly using web3
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(async() => {
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const ans = await askQuestion("******************************************\n\
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Do you want to send the signed value transaction now ? (Y/N):");
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if("y" == ans || "Y" == ans){
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// Send the signed transaction using web3
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web3.eth.sendSignedTransaction(rawTxHex)
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.on('receipt', receipt => { console.log('Receipt: ', receipt); })
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.catch(error => { console.log('Error: ', error.message); });
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console.log("******************************************");
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console.log("Value transaction sent, waiting for receipt.");
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console.log("******************************************");
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}else{
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console.log("******************************************");
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console.log("You can for instance send this transaction manually with the following command:");
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console.log("curl -X POST --data '{\"jsonrpc\":\"2.0\",\"method\":\"eth_sendRawTransaction\",\"params\":[\"" + rawTxHex + "\"],\"id\":1}'", provider);
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}
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})();
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})
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.catch(error => { console.log('Error: ', error.message); });
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