return new Bluebird((resolve, reject) => {
const ethereumTransaction = new EthereumTransaction({
to: transaction.tx.to,
from: transaction.tx.from,
data: transaction.tx.data,
value: transaction.tx.value,
gasLimit: transaction.tx.gasLimit,
gasPrice: transaction.tx.gasPrice,
nonce: job.data.currentNonce,
})
ethereumTransaction.sign(config.blockchain.signerPrivateKeyBuffer)
const transactionData = `0x${ethereumTransaction.serialize().toString('hex')}`
eth.sendSignedTransaction(transactionData)
.once('transactionHash', (transactionHash) => {
transaction.tx.hash = transactionHash
transaction.status = 'pending'
transaction.markModified('tx')
transaction.save()
// increase the nonce after we know this transaction was
// submitted to the blockchain successfully
job.data.currentNonce += 1
resolve()
})
.on('error', (error) => {
logger.error(`[${this.name}]`, `sendTransaction failed for ${transaction.id}:`, error)
transaction.tx.error = error.toString()
transaction.status = 'error'
transaction.markModified('tx')
transaction.save()
// sometimes an error event is emitted when the nonce should
// NOT increase (for example, bad TX params?), so we can't
// reliably increment the nonce here - instead let's just
// get the current TX count and set the nonce to that
return eth.getTransactionCount(config.blockchain.signerPublicAddress)
.then((currentNonce) => {
job.data.currentNonce = currentNonce
// @NOTE: don't reject when there's an error, since we
// don't want to prevent any subsequent transactions in
// this batch from running - just marking the
// transaction as failed is good enough for now
resolve()
})
})
})
.then((job) => {
if (job) {
return job
}
logger.verbose(`[${this.name}] no job found, creating a new one`)
return eth.getTransactionCount(config.blockchain.signerPublicAddress)
.then((currentNonce) => {
return models.Job.create({
name: this.name,
data: {
currentNonce,
},
})
})
})
.on('error', (error) => {
logger.error(`[${this.name}]`, `sendTransaction failed for ${transaction.id}:`, error)
transaction.tx.error = error.toString()
transaction.status = 'error'
transaction.markModified('tx')
transaction.save()
// sometimes an error event is emitted when the nonce should
// NOT increase (for example, bad TX params?), so we can't
// reliably increment the nonce here - instead let's just
// get the current TX count and set the nonce to that
return eth.getTransactionCount(config.blockchain.signerPublicAddress)
.then((currentNonce) => {
job.data.currentNonce = currentNonce
// @NOTE: don't reject when there's an error, since we
// don't want to prevent any subsequent transactions in
// this batch from running - just marking the
// transaction as failed is good enough for now
resolve()
})
})