Ruby Roundtable: Collaborative Text Editor
Sun-Li Beatteay presented:
How do Google Docs and Github's TeleType work? How does an app achieve a real-time effect while maintaining a consistent document among all users?
These questions led a team of 3 developers, including myself, to build a decentralized, peer-to-peer, collaborative text editor of our own! In this presentation I explain the concepts and introduce the components that we used to build a collaborative editor using Conflict-Free Replicated Datatypes (CRDTs) and WebRTC.
You will learn about:
The tradeoffs between Operational Transformation and CRDTs
Merging conflicting operations using CRDTs
Guaranteeing idempotency, commutativity, and causality with Version Vectors
Maintaining and scaling connections in a distributed network
Reducing network latency and achieving a real-time feel
CRDT optimizations that reduce overhead
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