diff --git a/.gitignore b/.gitignore index 87dec3a..e77d066 100644 --- a/.gitignore +++ b/.gitignore @@ -91,5 +91,7 @@ how.js snapshot.config.json tx balances -.cache -.vscode \ No newline at end of file +.vscode + +.idea +erc20-snapshot.iml \ No newline at end of file diff --git a/.nvmrc b/.nvmrc new file mode 100644 index 0000000..0a47c85 --- /dev/null +++ b/.nvmrc @@ -0,0 +1 @@ +lts/iron \ No newline at end of file diff --git a/contract.js b/contract.js index abea66b..1e86fbf 100644 --- a/contract.js +++ b/contract.js @@ -5,10 +5,17 @@ const Web3 = require("web3"); const Config = require("./config").getConfig(); const Parameters = require("./parameters").get(); -const web3 = new Web3(new Web3.providers.HttpProvider((Config || {}).provider || "http://localhost:8545")); +const web3 = []; +let web3Index = 0; +const getWeb3 = () => { + if (web3Index >= web3.length) web3Index = 0; + return web3[web3Index++]; +}; + +(Config || {}).providers.forEach(config => + web3.push(new Web3(new Web3.providers.HttpProvider(config || "http://localhost:8545"))) +); + const contractAddress = (Config || {}).contractAddress; -module.exports.getContract = () => { - const contract = web3.eth.Contract(Parameters.abi, contractAddress); - return contract; -}; +module.exports.getContract = () => getWeb3().eth.Contract(Parameters.abi, contractAddress); diff --git a/events/block-by-block.js b/events/block-by-block.js index 25100d7..f5e03a9 100644 --- a/events/block-by-block.js +++ b/events/block-by-block.js @@ -1,6 +1,7 @@ "use strict"; const FileHelper = require("../file-helper"); +const { getContract } = require("../contract"); const Parameters = require("../parameters").get(); const range = (start, end) => { @@ -9,7 +10,7 @@ const range = (start, end) => { .map((_, idx) => start + idx); }; -module.exports.tryBlockByBlock = async (contract, start, end, symbol) => { +module.exports.tryBlockByBlock = async (start, end, symbol) => { const blocks = range(start, end); let counter = 0; @@ -17,7 +18,7 @@ module.exports.tryBlockByBlock = async (contract, start, end, symbol) => { counter++; console.log("%d% Block %d of %d", Math.floor((counter / (end - start)) * 100), i, end); - const pastEvents = await contract.getPastEvents("Transfer", { fromBlock: i, toBlock: i }); + const pastEvents = await getContract().getPastEvents("Transfer", { fromBlock: i, toBlock: i }); if (pastEvents.length) { console.info("Successfully imported ", pastEvents.length, " events"); diff --git a/events/blockchain.js b/events/blockchain.js index 3756939..afe72a5 100644 --- a/events/blockchain.js +++ b/events/blockchain.js @@ -5,7 +5,7 @@ const Web3 = require("web3"); const BlockByBlock = require("./block-by-block"); const BlockReader = require("./block-reader"); const Config = require("../config").getConfig(); -const Contract = require("../contract").getContract(); +const { getContract } = require("../contract"); const FileHelper = require("../file-helper"); const LastDownloadedBlock = require("./last-downloaded-block"); const Parameters = require("../parameters").get(); @@ -14,11 +14,21 @@ const { promisify } = require("util"); const sleep = promisify(setTimeout); -const web3 = new Web3(new Web3.providers.HttpProvider((Config || {}).provider || "http://localhost:8545")); +const web3 = []; +let web3Index = 0; +const getWeb3 = () => { + if (web3Index >= web3.length) web3Index = 0; + return web3[web3Index++]; +}; + + +(Config || {}).providers.forEach(config => + web3.push(new Web3(new Web3.providers.HttpProvider(config || "http://localhost:8545"))) +); const groupBy = (objectArray, property) => { return objectArray.reduce((acc, obj) => { - var key = obj[property]; + const key = obj[property]; if (!acc[key]) { acc[key] = []; } @@ -29,7 +39,8 @@ const groupBy = (objectArray, property) => { const tryGetEvents = async (start, end, symbol) => { try { - const pastEvents = await Contract.getPastEvents("Transfer", { fromBlock: start, toBlock: end }); + console.log(`Fetching ${end - start} blocks (${start} to ${end})`); + const pastEvents = await getContract().getPastEvents("Transfer", { fromBlock: start, toBlock: end }); if (pastEvents.length) { console.info("Successfully imported ", pastEvents.length, " events"); @@ -48,20 +59,20 @@ const tryGetEvents = async (start, end, symbol) => { } } } catch (e) { - console.log("Could not get events due to an error. Now checking block by block."); - await BlockByBlock.tryBlockByBlock(Contract, start, end, symbol); + console.log("Could not get events due to an error. Now checking block by block.", ""); + await BlockByBlock.tryBlockByBlock(start, end, symbol); } }; module.exports.get = async () => { - const name = await Contract.methods.name().call(); - const symbol = await Contract.methods.symbol().call(); - const decimals = await Contract.methods.decimals().call(); - const blockHeight = await web3.eth.getBlockNumber(); - var fromBlock = parseInt(Config.fromBlock) || 0; + const name = await getContract().methods.name().call(); + const symbol = await getContract().methods.symbol().call(); + const decimals = await getContract().methods.decimals().call(); + const blockHeight = await getWeb3().eth.getBlockNumber(); + let fromBlock = parseInt(Config.fromBlock) || 0; const blocksPerBatch = parseInt(Config.blocksPerBatch) || 0; const delay = parseInt(Config.delay) || 0; - const toBlock = blockHeight; + const toBlock = parseInt(Config.toBlock) || blockHeight; const lastDownloadedBlock = await LastDownloadedBlock.get(symbol); @@ -70,39 +81,33 @@ module.exports.get = async () => { fromBlock = lastDownloadedBlock + 1; } - console.log("From %d to %d", fromBlock, toBlock); + console.log("From %d to %d", fromBlock, toBlock, Math.ceil((toBlock - fromBlock) / blocksPerBatch)); let start = fromBlock; - let end = fromBlock + blocksPerBatch; + let end = Math.min(fromBlock + blocksPerBatch, toBlock); let i = 0; - while (end < toBlock) { + while (start <= toBlock) { i++; if (delay) { await sleep(delay); } - console.log("Batch", i + 1, " From", start, "to", end); + console.log("Batch", i, " From", start, "to", end); - await tryGetEvents(start, end, symbol); + await tryGetEvents(start, Math.min(end, toBlock), symbol); start = end + 1; - end = start + blocksPerBatch; - - if (end > toBlock) { - end = toBlock; - } + end = Math.min(start + blocksPerBatch, toBlock); } const events = await BlockReader.getEvents(symbol); - const data = { + return { name, symbol, decimals, - events: events + events }; - - return data; }; diff --git a/export.js b/export.js index 95da35e..73ea3d2 100644 --- a/export.js +++ b/export.js @@ -3,19 +3,30 @@ const path = require("path"); const FileHelper = require("./file-helper"); const Parameters = require("./parameters").get(); const WalletType = require("./wallet-type"); +const Config = require("./config").getConfig(); const objectToCsv = require("csv-writer").createObjectCsvWriter; module.exports.exportBalances = async (symbol, balances, format) => { - const withType = await WalletType.addType(balances); + let withType = balances; + + const checkContract = Config.checkIfContract.toLowerCase() === "yes"; + if (checkContract) { + withType = await WalletType.addType(balances); + } const writeCsv = () => { const file = Parameters.outputFileNameCSV.replace(/{token}/g, symbol); FileHelper.ensureDirectory(path.dirname(file)); + const header = [{ id: "wallet", title: "holders" }, { id: "balance", title: "amounts" }]; + + if (checkContract) { + header.push({ id: "type", title: "Type" }); + } const writer = objectToCsv({ path: file, - header: [{ id: "wallet", title: "Wallet" }, { id: "balance", title: "Balance" }, { id: "type", title: "Type" }] + header }); console.log("Exporting CSV"); diff --git a/index.js b/index.js index bce42cf..ad39933 100644 --- a/index.js +++ b/index.js @@ -5,6 +5,8 @@ const Balances = require("./balances"); const Config = require("./config"); const Events = require("./events/blockchain"); const Export = require("./export"); +const BigNumber = require("bignumber.js"); +const { getContract } = require("./contract"); const start = async () => { await Config.checkConfig(); @@ -12,9 +14,26 @@ const start = async () => { const result = await Events.get(); console.log("Calculating balances of %s (%s)", result.name, result.symbol); - const balances = await Balances.createBalances(result); + let balances = await Balances.createBalances(result); - console.log("Exporting balances"); + const totalBalances = balances.reduce((sum, balance) => + new BigNumber(balance.balance).plus(sum) + , + 0); + + if (Config.getConfig().ignoreZeroBalances.toLowerCase() === "yes") { + balances = balances.filter(balance => + !new BigNumber(balance.balance).isZero() + ); + } + + // double check 100 first balances + for await (const balance of balances.slice(0, 100)) { + const realBalance = await getContract().methods.balanceOf(balance.wallet).call(); + if (!(new BigNumber(realBalance?._hex).div(10 ** parseInt(result.decimals)).eq(balance.balance))) console.warn(`Invalid balance`, balance.wallet, balance.balance); + } + + console.log("Exporting balances", `${balances.length} wallets`, `${totalBalances.toString()} ${result.symbol}`); await Export.exportBalances(result.symbol, balances, format); }; diff --git a/package-lock.json b/package-lock.json index 1772ac8..5dd5c16 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,89 +1,116 @@ { "name": "erc20-snapshot", "version": "1.0.2", - 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Older versions may use Math.random() in certain circumstances, which is known to be problematic. 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"requires": { + "dependencies": { "global": "~4.3.0", "is-function": "^1.0.1", "parse-headers": "^2.0.0", "xtend": "^4.0.0" } }, - "xhr-request": { + "node_modules/xhr-request": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz", "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==", - "requires": { + "dependencies": { "buffer-to-arraybuffer": "^0.0.5", "object-assign": "^4.1.1", "query-string": "^5.0.1", @@ -1349,36 +1553,45 @@ "xhr": "^2.0.4" } }, - "xhr-request-promise": { + "node_modules/xhr-request-promise": { "version": "0.1.2", "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz", "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=", - "requires": { + "dependencies": { "xhr-request": "^1.0.1" } }, - "xhr2-cookies": { + "node_modules/xhr2-cookies": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz", "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=", - "requires": { + "dependencies": { "cookiejar": "^2.1.1" } }, - "xmlhttprequest": { + "node_modules/xmlhttprequest": { "version": "1.8.0", "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz", - "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw=" + "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw=", + "engines": { + "node": ">=0.4.0" + } }, - "xtend": { + "node_modules/xtend": { "version": "4.0.1", "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz", - "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=" + "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=", + "engines": { + "node": ">=0.4" + } }, - "yaeti": { + "node_modules/yaeti": { "version": "0.0.6", "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz", - "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc=" + "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc=", + "engines": { + "node": ">=0.10.32" + } } } } diff --git a/readme.md b/readme.md index 48c6348..37ca1eb 100644 --- a/readme.md +++ b/readme.md @@ -34,14 +34,20 @@ erc20-snapshot ```json { - "provider": "https://mainnet.infura.io/v3/", - "contractAddress": "", - "fromBlock": 0, + "providers": [ + "https://mainnet.infura.io/v3/", + "https://mainnet.gateway.tenderly.co", + "https://rpc.flashbots.net", + "https://rpc.mevblocker.io" + ], + "contractAddress": "", + "fromBlock": 12345678, "toBlock": "latest", "format": "json", - "blocksPerBatch": 2500, + "blocksPerBatch": 50000, "delay": 0, - "checkIfContract": "yes" + "checkIfContract": "yes", + "ignoreZeroBalances": "yes" } ``` diff --git a/wallet-type.js b/wallet-type.js index d183029..255aa32 100644 --- a/wallet-type.js +++ b/wallet-type.js @@ -4,7 +4,17 @@ const Config = require("./config").getConfig(); const FileHelper = require("./file-helper"); const Parameters = require("./parameters").get(); -const web3 = new Web3(new Web3.providers.HttpProvider((Config || {}).provider || "http://localhost:8545")); +const web3 = []; +let web3Index = 0; +const getWeb3 = () => { + if (web3Index >= web3.length) web3Index = 0; + return web3[web3Index++]; +}; + + +(Config || {}).providers.forEach(config => + web3.push(new Web3(new Web3.providers.HttpProvider(config || "http://localhost:8545"))) +); const findTypeFromCache = (cache, wallet) => { if (cache && cache.length) { @@ -19,10 +29,6 @@ const findTypeFromCache = (cache, wallet) => { }; module.exports.addType = async balances => { - if (Config.checkIfContract.toLowerCase() !== "yes") { - return balances; - } - let counter = 0; let cache = await FileHelper.parseFile(Parameters.knownTypes); @@ -34,9 +40,9 @@ module.exports.addType = async balances => { if (!type) { type = "wallet"; - const code = await web3.eth.getCode(balance.wallet); + const code = await getWeb3().eth.getCode(balance.wallet); - if (code != "0x") { + if (code !== "0x") { type = "contract"; console.log("✓", balance.wallet, "is a contract."); }