Peer to peer chat without using a server? We can do this using Ethereum’s whisper library. This is a chat protocol that lets nodes chat with each other directly, no need for a central server. It doesn’t even use a centralized routing source to let nodes discover each other like BitTorrent does with trackers, instead it uses a distributed hash table as a tool for decentralized peer discovery. Yes its not completely real-time, but the trade-off allows for true private chat. I’m going to explain how it works and code the demo at the end.
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