UPDATE: I am not really familiar with NPM, so i guess that is the problem. I only installed NPM, what else must i do in order to start the application succesfully?
I’ve installed web3js and i am using this script from github ( https://gist.github.com/raineorshine/c8b30db96d7532e15f85fcfe72ac719c )
const Web3 = require(‘web3’)
const Tx = require(‘ethereumjs-tx’).Transaction
// 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 privateKey = new Buffer('PRIVATE_KEY', 'hex')
// the destination address
const addressTo = '0x1463500476a3ADDa33ef1dF530063fE126203186'
// 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')) // 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
* buffering and serializing the transaction for web3.
* @returns A promise of an object that emits events: transactionHash, receipt, confirmaton, error
*/
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)
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!
// (thanks @AndreiD)
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)
})
)
Obviously i changed infura provider, as well as the keys, but the problem is when i try to run “Node send2.js”
What does this mean? I have no cliue what do these 3 dots mean, can’t google either.
Any advice? Basically i am trying to send a transactin from a server.