This service queries transactions of ERC20 contracts via Infura.io. It will store them in a db and let's you query the transcations by symbol and sender / receiver.

• dbpath: path to sqlite file, usually ./db/storeq.sqlite
• infura: infura url
• tokens: array of objects, that represent the tokens to track:

symbol: Symbol used for querying, e.g. WBTC
contract: Contract address in hex format. Must be erc20 contract
scanFrom: Number, start scanning here
interval: Number, amount of blocks that will be queried together. Bugg interval = more calls to infura.

/:symbol/to/:address get all transactions of symbol by receiver
/:symbol/from/:address get all transactions of symbol by sender