Eth Bot Price Checker v0.1.0

Bot to check eth prices against other ERC-20 tokens.

Connects to the Uniswap Factory smart contract on Ethereum mainnet via web3.js.

Quickstart

Clone project into empty directory:

$ git clone https://github.com/yan-man/eth-bot.git

cd into directory
Get mainnet Infura RPC URL from: https://infura.io/
Copy example.json file to create default.json file in root config directory. Update RPC_URL field. interval field units are in seconds.

{
  "RPC_URL": "https://mainnet.infura.io/v3/______________",
  "PORT": 3000
  "INTERVAL": 5
}

$ npm install

$ npm run dev

In console, you should see price comparisons displayed in a table, updating in regular intervals defined by INTERVAL field in default.json config. NOTE: some prices seem off, probably due to Uniswap V1 implementation.

CRON jobs are set up to poll for data every 1 second. This can be configured in the ./index.js file - pollingInterval variable.

The selection of tokens that are included are in ./services/tokens.js file. Update relevant information to query for other token data.

Add more ERC-20 tokens to compare
Add more DEXs to find price spread differences and identify arbitrage opportunities
Update to UniswapV3 implementation
Include slippage adjustment
Perform swaps based on price spread differences
Add unit tests
maybe ethers.js instead; easier to work with

Yan Man