To run: npm install && node index.js
Note: You must have Geth running. Geth (hehe) it here. After installing, run geth --rpc
Last active
April 19, 2018 23:13
-
-
Save gamalielhere/c31796aa45d10af33e0de0d8a6664344 to your computer and use it in GitHub Desktop.
Token Tester for MEW
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /* | |
| This checker assumes you have geth installed and running. | |
| */ | |
| const fs = require('fs'); | |
| const Web3 = require('web3'); | |
| const fetch = require('node-fetch'); | |
| let web3 = new Web3(); | |
| web3.setProvider(new web3.providers.HttpProvider("http://127.0.0.1:8545")); | |
| async function run() { | |
| const response = await fetch('https://raw.githubusercontent.com/kvhnuke/etherwallet/mercury/app/scripts/tokens/ethTokens.json'); | |
| const tokens = await response.json(); | |
| parseTokens(tokens); | |
| } | |
| async function checkToken(token) { | |
| let newToken = await web3.eth.getCode(token).then((err, res) => { | |
| if(err) throw err; | |
| return res; | |
| }).catch(err => { | |
| return err; | |
| }); | |
| return newToken; | |
| } | |
| function parseTokens(arr) { | |
| var newArr = []; | |
| var nonErc20 = []; | |
| var counter = 0; | |
| arr.forEach(item => { | |
| counter++; | |
| checkToken(item.address).then(res => { | |
| if(res !== '0x') { | |
| newArr.push(item); | |
| } else { | |
| nonErc20.push(item); | |
| } | |
| if(counter === arr.length) { | |
| if(newArr.length > 0) { | |
| createNewFile('ethToken.json', newArr); | |
| } | |
| if(nonErc20.length > 0) { | |
| createNewFile('nonErc20.json', nonErc20); | |
| } | |
| } | |
| }); | |
| }); | |
| } | |
| function createNewFile(name, arr) { | |
| fs.writeFileSync(name, JSON.stringify(arr)); | |
| } | |
| run(); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| { | |
| "name": "token-tester", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "author": "", | |
| "license": "ISC", | |
| "devDependencies": { | |
| "node-fetch": "^2.1.2", | |
| "web3": "^1.0.0-beta.33" | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment