Listening and Parsing Chain Events
Introduction
Listening and parsing chain events is a crucial aspect of blockchain development. By subscribing to or querying for specific events—like new blocks, pending transactions, or contract logs—you can
build real-time applications that respond instantly to on-chain activity. Whether you’re monitoring blocks to confirm transactions or listening for specific smart contract events, understanding how
to capture and interpret these updates is key to creating interactive and dynamic blockchain services.
Introduction
In this section, we explore various methods for receiving and processing chain events. You’ll learn how to use subscription-based APIs (likeeth_subscribe and
chain_subscribeNewHeads) for live notifications, as well as filter-based approaches
(eth_newFilter + eth_getFilterChanges) for more targeted event tracking. By mastering these techniques,
you’ll be able to develop robust applications that keep pace with on-chain changes as they happen.