remove multicall

abis/MultiCall.abi.json

@@ -1,22 +0,0 @@
-[
-  {
-    "inputs": [
-      {
-        "components": [
-          { "internalType": "address", "name": "to", "type": "address" },
-          { "internalType": "bytes", "name": "data", "type": "bytes" }
-        ],
-        "internalType": "struct MultiCall.Call[]",
-        "name": "calls",
-        "type": "tuple[]"
-      }
-    ],
-    "name": "multicall",
-    "outputs": [
-      { "internalType": "bytes[]", "name": "results", "type": "bytes[]" },
-      { "internalType": "bool[]", "name": "success", "type": "bool[]" }
-    ],
-    "stateMutability": "view",
-    "type": "function"
-  }
-]

src/config.js

@@ -8,8 +8,7 @@ module.exports = {
   httpRpcUrl: process.env.HTTP_RPC_URL,
   wsRpcUrl: process.env.WS_RPC_URL,
   oracleRpcUrl: process.env.ORACLE_RPC_URL || 'https://mainnet.infura.io/',
-  offchainOracleAddress: '0x080ab73787a8b13ec7f40bd7d00d6cc07f9b24d0',
-  multiCallAddress: '0xda3c19c6fe954576707fa24695efb830d9cca1ca',
+  offchainOracleAddress: '0x080AB73787A8B13EC7F40bd7d00d6CC07F9b24d0',
   aggregatorAddress: process.env.AGGREGATOR,
   minerMerkleTreeHeight: 20,
   privateKey: process.env.PRIVATE_KEY,

src/priceWatcher.js

@@ -1,48 +1,42 @@
 const Redis = require('ioredis')
-const { redisUrl, offchainOracleAddress, multiCallAddress, oracleRpcUrl } = require('./config')
+const { redisUrl, offchainOracleAddress, oracleRpcUrl } = require('./config')
 const { getArgsForOracle, setSafeInterval } = require('./utils')
 const redis = new Redis(redisUrl)
 const Web3 = require('web3')
-const web3 = new Web3(oracleRpcUrl)
+const web3 = new Web3(oracleRpcUrl, {
+  timeout: 200000, // ms
+})
 
-const multiCallABI = require('../abis/MultiCall.abi.json')
 const offchainOracleABI = require('../abis/OffchainOracle.abi.json')
 
-const offchainOracle = new web3.eth.Contract(offchainOracleABI)
-const multiCall = new web3.eth.Contract(multiCallABI, multiCallAddress)
+const offchainOracle = new web3.eth.Contract(offchainOracleABI, offchainOracleAddress)
 const { tokenAddresses, oneUintAmount, currencyLookup } = getArgsForOracle()
 
 const { toBN } = require('web3-utils')
 
 async function main() {
-  const callData = tokenAddresses.map(address => ({
-    to: offchainOracleAddress,
-    data: offchainOracle.methods
-      .getRate(
-        address,
-        '0x0000000000000000000000000000000000000000', // rate to ETH
-      )
-      .encodeABI(),
-  }))
+  try {
+    const ethPrices = {}
+    for (let i = 0; i < tokenAddresses.length; i++) {
+      try {
+        const price = await offchainOracle.methods
+          .getRate(tokenAddresses[i], '0x0000000000000000000000000000000000000000')
+          .call()
+        const numerator = toBN(oneUintAmount[i])
+        const denominator = toBN(10).pow(toBN(18)) // eth decimals
+        const priceFormatted = toBN(price).mul(numerator).div(denominator)
 
-  const { results, success } = await multiCall.methods.multicall(callData).call()
-
-  const ethPrices = {}
-  for (let i = 0; i < results.length; i++) {
-    if (!success[i]) {
-      continue
+        ethPrices[currencyLookup[tokenAddresses[i]]] = priceFormatted.toString()
+      } catch (e) {
+        console.error('cant get price of ', tokenAddresses[i])
+      }
     }
 
-    const decodedRate = web3.eth.abi.decodeParameter('uint256', results[i]).toString()
-    const numerator = toBN(oneUintAmount[i])
-    const denominator = toBN(10).pow(toBN(18)) // eth decimals
-    const price = toBN(decodedRate).mul(numerator).div(denominator)
-
-    ethPrices[currencyLookup[tokenAddresses[i]]] = price.toString()
+    await redis.hmset('prices', ethPrices)
+    console.log('Wrote following prices to redis', ethPrices)
+  } catch (e) {
+    console.error('priceWatcher error', e)
   }
-
-  await redis.hmset('prices', ethPrices)
-  console.log('Wrote following prices to redis', ethPrices)
 }
 
 setSafeInterval(main, 30 * 1000)

src/treeWatcher.js

@@ -22,13 +22,17 @@ let tree, eventSubscription, blockSubscription
 
 // todo handle the situation when we have two rewards in one block
 async function fetchEvents(from = 0, to = 'latest') {
-  const events = await contract.getPastEvents('NewAccount', {
-    fromBlock: from,
-    toBlock: to,
-  })
-  return events
-    .sort((a, b) => a.returnValues.index - b.returnValues.index)
-    .map(e => toBN(e.returnValues.commitment))
+  try {
+    const events = await contract.getPastEvents('NewAccount', {
+      fromBlock: from,
+      toBlock: to,
+    })
+    return events
+      .sort((a, b) => a.returnValues.index - b.returnValues.index)
+      .map(e => toBN(e.returnValues.commitment))
+  } catch (e) {
+    console.error('error fetching events', e)
+  }
 }
 
 async function processNewEvent(err, event) {
@@ -95,16 +99,20 @@ async function rebuild() {
 }
 
 async function init() {
-  console.log('Initializing')
-  const miner = await resolver.resolve(torn.miningV2.address)
-  contract = new web3.eth.Contract(MinerABI, miner)
-  const block = await web3.eth.getBlockNumber()
-  const events = await fetchEvents(0, block)
-  tree = new MerkleTree(minerMerkleTreeHeight, events, { hashFunction: poseidonHash2 })
-  console.log(`Rebuilt tree with ${events.length} elements, root: ${tree.root()}`)
-  eventSubscription = contract.events.NewAccount({ fromBlock: block + 1 }, processNewEvent)
-  blockSubscription = web3.eth.subscribe('newBlockHeaders', processNewBlock)
-  await updateRedis()
+  try {
+    console.log('Initializing')
+    const miner = await resolver.resolve(torn.miningV2.address)
+    contract = new web3.eth.Contract(MinerABI, miner)
+    const block = await web3.eth.getBlockNumber()
+    const events = await fetchEvents(0, block)
+    tree = new MerkleTree(minerMerkleTreeHeight, events, { hashFunction: poseidonHash2 })
+    console.log(`Rebuilt tree with ${events.length} elements, root: ${tree.root()}`)
+    eventSubscription = contract.events.NewAccount({ fromBlock: block + 1 }, processNewEvent)
+    blockSubscription = web3.eth.subscribe('newBlockHeaders', processNewBlock)
+    await updateRedis()
+  } catch (e) {
+    console.error('error on init treeWatcher', e.message)
+  }
 }
 
 init()

src/utils.js

@@ -3,7 +3,7 @@ const { poseidon } = require('circomlib')
 const { toBN, toChecksumAddress, BN } = require('web3-utils')
 
 const TORN_TOKEN = {
-  tokenAddress: '0x77777feddddffc19ff86db637967013e6c6a116c',
+  tokenAddress: '0x77777FeDdddFfC19Ff86DB637967013e6C6A116C',
   symbol: 'TORN',
   decimals: 18,
 }

src/worker.js

@@ -74,26 +74,30 @@ async function fetchTree() {
 }
 
 async function start() {
-  web3 = new Web3(httpRpcUrl)
-  const { CONFIRMATIONS, MAX_GAS_PRICE } = process.env
-  txManager = new TxManager({
-    privateKey,
-    rpcUrl: httpRpcUrl,
-    config: { CONFIRMATIONS, MAX_GAS_PRICE, THROW_ON_REVERT: false },
-  })
-  swap = new web3.eth.Contract(swapABI, await resolver.resolve(torn.rewardSwap.address))
-  minerContract = new web3.eth.Contract(miningABI, await resolver.resolve(torn.miningV2.address))
-  proxyContract = new web3.eth.Contract(tornadoProxyABI, await resolver.resolve(torn.tornadoProxy.address))
-  redisSubscribe.subscribe('treeUpdate', fetchTree)
-  await fetchTree()
-  const provingKeys = {
-    treeUpdateCircuit: require('../keys/TreeUpdate.json'),
-    treeUpdateProvingKey: fs.readFileSync('./keys/TreeUpdate_proving_key.bin').buffer,
+  try {
+    web3 = new Web3(httpRpcUrl)
+    const { CONFIRMATIONS, MAX_GAS_PRICE } = process.env
+    txManager = new TxManager({
+      privateKey,
+      rpcUrl: httpRpcUrl,
+      config: { CONFIRMATIONS, MAX_GAS_PRICE, THROW_ON_REVERT: false },
+    })
+    swap = new web3.eth.Contract(swapABI, await resolver.resolve(torn.rewardSwap.address))
+    minerContract = new web3.eth.Contract(miningABI, await resolver.resolve(torn.miningV2.address))
+    proxyContract = new web3.eth.Contract(tornadoProxyABI, await resolver.resolve(torn.tornadoProxy.address))
+    redisSubscribe.subscribe('treeUpdate', fetchTree)
+    await fetchTree()
+    const provingKeys = {
+      treeUpdateCircuit: require('../keys/TreeUpdate.json'),
+      treeUpdateProvingKey: fs.readFileSync('./keys/TreeUpdate_proving_key.bin').buffer,
+    }
+    controller = new Controller({ provingKeys })
+    await controller.init()
+    queue.process(processJob)
+    console.log('Worker started')
+  } catch (e) {
+    console.error('error on start worker', e.message)
   }
-  controller = new Controller({ provingKeys })
-  await controller.init()
-  queue.process(processJob)
-  console.log('Worker started')
 }
 
 function checkFee({ data }) {