-
Notifications
You must be signed in to change notification settings - Fork 16
/
TxManager.js
45 lines (41 loc) · 1.32 KB
/
TxManager.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
const ethers = require('ethers')
const { Mutex } = require('async-mutex')
const { GasPriceOracle } = require('gas-price-oracle')
const Transaction = require('./Transaction')
const defaultConfig = {
MAX_RETRIES: 10,
GAS_BUMP_PERCENTAGE: 5,
MIN_GWEI_BUMP: 1,
GAS_BUMP_INTERVAL: 1000 * 60 * 5,
MAX_GAS_PRICE: 1000,
GAS_LIMIT_MULTIPLIER: 1.1,
POLL_INTERVAL: 5000,
CONFIRMATIONS: 8,
ESTIMATE_GAS: true,
THROW_ON_REVERT: true,
BLOCK_GAS_LIMIT: null,
PRIORITY_FEE_GWEI: 3,
BASE_FEE_RESERVE_PERCENTAGE: 50,
}
class TxManager {
constructor({ privateKey, rpcUrl, broadcastNodes = [], config = {}, gasPriceOracleConfig = {} }) {
this.config = Object.assign({ ...defaultConfig }, config)
this._privateKey = privateKey.startsWith('0x') ? privateKey : '0x' + privateKey
this._provider = new ethers.providers.JsonRpcProvider(rpcUrl)
this._wallet = new ethers.Wallet(this._privateKey, this._provider)
this.address = this._wallet.address
this._broadcastNodes = broadcastNodes
this._gasPriceOracle = new GasPriceOracle({ defaultRpc: rpcUrl, ...gasPriceOracleConfig })
this._mutex = new Mutex()
this._nonce = null
}
/**
* Creates Transaction class instance.
*
* @param tx Transaction to send
*/
createTx(tx) {
return new Transaction(tx, this)
}
}
module.exports = TxManager