Based on ethers.js's queryFilter, allows querying of past contract events, by querying the logs for a contract's event topic.
* queryFilter to query past logs
* Allow querying of past block log events
* Can query by block number or block hash
Allows specified number of transaction confirmations to be awaited before a transaction is considered finalised. Polls for a transaction receipt then listens for new blocks and calculates the number of blocks between the receipt and the new block.
Notes
1. Only works with websockets currently
2. Replaced transaction not supported yet
Eric
Mark Spanbroek
Jackie
Eric Mastro
Michael Bradley, Jr