raineorshine · December 3, 2022 18:02 · Apr 10, 2020 · Feb 3, 2020 · Nov 1, 2019 · Nov 1, 2019
diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -19,9 +19,10 @@ const txData = {
   gasPrice: web3.utils.toHex(10e9), // 10 Gwei
   to: addressTo,
   from: addressFrom,
-  value: web3.utils.toHex(web3.utils.toWei('123', 'wei')) // Thanks @abel30567
-  // if you want to send just raw data (e.g. contract execution) rather than sending tokens,
+  value: web3.utils.toHex(web3.utils.toWei('123', 'wei')) // thanks @abel30567
+  // if you want to send raw data (e.g. contract execution) rather than sending tokens,
   // use 'data' instead of 'value' (thanks @AlecZadikian9001)
+  // e.g. myContract.methods.myMethod(123).encodeABI() (thanks @NguyenHoangSon96)
 }
 
 /** Signs the given transaction data and sends it. Abstracts some of the details of 

diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -28,7 +28,7 @@ const txData = {
   * buffering and serializing the transaction for web3.
   * @returns A promise of an object that emits events: transactionHash, receipt, confirmaton, error
 */
-function sendRawTransaction(txData) =>
+const sendRawTransaction = txData =>
   // get the number of transactions sent so far so we can create a fresh nonce
   web3.eth.getTransactionCount(addressFrom).then(txCount => {
     const newNonce = web3.utils.toHex(txCount)

diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -19,9 +19,9 @@ const txData = {
   gasPrice: web3.utils.toHex(10e9), // 10 Gwei
   to: addressTo,
   from: addressFrom,
-  value: web3.utils.toHex(web3.utils.toWei(123, 'wei'))
+  value: web3.utils.toHex(web3.utils.toWei('123', 'wei')) // Thanks @abel30567
   // if you want to send just raw data (e.g. contract execution) rather than sending tokens,
-  // use 'data' instead of 'value'
+  // use 'data' instead of 'value' (thanks @AlecZadikian9001)
 }
 
 /** Signs the given transaction data and sends it. Abstracts some of the details of 
@@ -40,6 +40,7 @@ function sendRawTransaction(txData) =>
 
 
 // fire away!
+// (thanks @AndreiD)
 sendRawTransaction(txData).then(result =>
   result
     .on('transactionHash', txHash => {

diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -20,6 +20,8 @@ const txData = {
   to: addressTo,
   from: addressFrom,
   value: web3.utils.toHex(web3.utils.toWei(123, 'wei'))
+  // if you want to send just raw data (e.g. contract execution) rather than sending tokens,
+  // use 'data' instead of 'value'
 }
 
 /** Signs the given transaction data and sends it. Abstracts some of the details of 

diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -6,38 +6,52 @@ const web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io
 
 // the address that will send the test transaction
 const addressFrom = '0x1889EF49cDBaad420EB4D6f04066CA4093088Bbd'
-const privKey = 'PRIVATE_KEY'
+const privateKey = new Buffer('PRIVATE_KEY', 'hex')
 
 // the destination address
 const addressTo = '0x1463500476a3ADDa33ef1dF530063fE126203186'
 
-// Signs the given transaction data and sends it. Abstracts some of the details 
-// of buffering and serializing the transaction for web3.
-function sendSigned(txData, cb) {
-  const privateKey = new Buffer(config.privKey, 'hex')
-  const transaction = new Tx(txData)
-  transaction.sign(privateKey)
-  const serializedTx = transaction.serialize().toString('hex')
-  web3.eth.sendSignedTransaction('0x' + serializedTx, cb)
+// construct the transaction data
+// NOTE: property 'nonce' must be merged in from web3.eth.getTransactionCount 
+// before the transaction data is passed to new Tx(); see sendRawTransaction below.
+const txData = {
+  gasLimit: web3.utils.toHex(25000),
+  gasPrice: web3.utils.toHex(10e9), // 10 Gwei
+  to: addressTo,
+  from: addressFrom,
+  value: web3.utils.toHex(web3.utils.toWei(123, 'wei'))
 }
 
-// get the number of transactions sent so far so we can create a fresh nonce
-web3.eth.getTransactionCount(addressFrom).then(txCount => {
-
-  // construct the transaction data
-  const txData = {
-    nonce: web3.utils.toHex(txCount),
-    gasLimit: web3.utils.toHex(25000),
-    gasPrice: web3.utils.toHex(10e9), // 10 Gwei
-    to: addressTo,
-    from: addressFrom,
-    value: web3.utils.toHex(web3.utils.toWei(123, 'wei'))
-  }
-
-  // fire away!
-  sendSigned(txData, function(err, result) {
-    if (err) return console.log('error', err)
-    console.log('sent', result)
+/** Signs the given transaction data and sends it. Abstracts some of the details of 
+  * buffering and serializing the transaction for web3.
+  * @returns A promise of an object that emits events: transactionHash, receipt, confirmaton, error
+*/
+function sendRawTransaction(txData) =>
+  // get the number of transactions sent so far so we can create a fresh nonce
+  web3.eth.getTransactionCount(addressFrom).then(txCount => {
+    const newNonce = web3.utils.toHex(txCount)
+    const transaction = new Tx({ ...txData, nonce: newNonce }, { chain: 'mainnet' }) // or 'rinkeby'
+    transaction.sign(privateKey)
+    const serializedTx = transaction.serialize().toString('hex')
+    return web3.eth.sendSignedTransaction('0x' + serializedTx)
   })
 
-})
+
+// fire away!
+sendRawTransaction(txData).then(result =>
+  result
+    .on('transactionHash', txHash => {
+      console.log('transactionHash:', txHash)
+    })
+    .on('receipt', receipt => {
+      console.log('receipt:', receipt)
+    })
+    .on('confirmation', (confirmationNumber, receipt) => {
+      if (confirmationNumber >= 1) {
+        console.log('confirmations:', confirmationNumber, receipt)
+      }
+    })
+    .on('error:', error => {
+      console.error(error)
+    })
+)
diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -1,5 +1,5 @@
 const Web3 = require('web3')
-const Tx = require('ethereumjs-tx')
+const Tx = require('ethereumjs-tx').Transaction
 
 // connect to Infura node
 const web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io/INFURA_KEY'))

diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -24,10 +24,10 @@ function sendSigned(txData, cb) {
 // get the number of transactions sent so far so we can create a fresh nonce
 web3.eth.getTransactionCount(addressFrom).then(txCount => {
 
-  // contstruct the transaction data
+  // construct the transaction data
   const txData = {
     nonce: web3.utils.toHex(txCount),
-    gasLimit: web3.utils.toHex(21000),
+    gasLimit: web3.utils.toHex(25000),
     gasPrice: web3.utils.toHex(10e9), // 10 Gwei
     to: addressTo,
     from: addressFrom,
@@ -37,7 +37,7 @@ web3.eth.getTransactionCount(addressFrom).then(txCount => {
   // fire away!
   sendSigned(txData, function(err, result) {
     if (err) return console.log('error', err)
-    console.log('success', result)
+    console.log('sent', result)
   })
 
 })
diff --git a/sendRawTransaction.js b/sendRawTransaction.js
@@ -0,0 +1,43 @@
+const Web3 = require('web3')
+const Tx = require('ethereumjs-tx')
+
+// connect to Infura node
+const web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io/INFURA_KEY'))
+
+// the address that will send the test transaction
+const addressFrom = '0x1889EF49cDBaad420EB4D6f04066CA4093088Bbd'
+const privKey = 'PRIVATE_KEY'
+
+// the destination address
+const addressTo = '0x1463500476a3ADDa33ef1dF530063fE126203186'
+
+// Signs the given transaction data and sends it. Abstracts some of the details 
+// of buffering and serializing the transaction for web3.
+function sendSigned(txData, cb) {
+  const privateKey = new Buffer(config.privKey, 'hex')
+  const transaction = new Tx(txData)
+  transaction.sign(privateKey)
+  const serializedTx = transaction.serialize().toString('hex')
+  web3.eth.sendSignedTransaction('0x' + serializedTx, cb)
+}
+
+// get the number of transactions sent so far so we can create a fresh nonce
+web3.eth.getTransactionCount(addressFrom).then(txCount => {
+
+  // contstruct the transaction data
+  const txData = {
+    nonce: web3.utils.toHex(txCount),
+    gasLimit: web3.utils.toHex(21000),
+    gasPrice: web3.utils.toHex(10e9), // 10 Gwei
+    to: addressTo,
+    from: addressFrom,
+    value: web3.utils.toHex(web3.utils.toWei(123, 'wei'))
+  }
+
+  // fire away!
+  sendSigned(txData, function(err, result) {
+    if (err) return console.log('error', err)
+    console.log('success', result)
+  })
+
+})
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