End-of-Lesson Summary
Key Technical Takeaways:
WebSockets eliminate the need for frequent polling, making apps more efficient.
subscriptionsin the SDK generate specific URLs for VET transfers, blocks, and pending transactions.Beats provide minimal data summaries, using Bloom filters to verify if an address was active in a block (including as a gas payer, sender, or recipient).
You are ready to:
Establish a WebSocket connection to a VeChain node.
Filter and decode real-time VET transfers.
Use
bloomUtilsto efficiently detect blockchain activity relevant to a specific address.
COMMON PITFALLS
Forgetting to parse: Data from WebSockets arrives as JSON strings; always use
JSON.parse().Decimal Handling: Native VET transfers use 18 decimals; ensure you handle the BigInt conversion correctly.
It's all for this module! You've learned how to read, write and listen to the network. Combine it with what you learnt on Smart contract development and see how to connect your App to VeBetter in the next module! 🚀
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