CRDTs

A library of Conflict-Free Replicated Data Types for JavaScript.

Work In Progress

This module provides a set of Conflict-Free Replicated Data Types for your JavaScript programs. All CRDTs in this library, except G-Counter, are currently operation-based.

CRDTs implemented in this module:

• G-Counter
• PN-Counter
• G-Set
• 2P-Set
• OR-Set
• LWW-Set

Install

This module uses npm and node.

To install, run:

$ npm install crdts

Usage

import{GCounter,PNCounter,GSet,TwoPSet,ORSet,LWWSet,GSet,ORSet,LWWSet}from'crdts'

See the source code for each CRDT for the APIs and tests for usage examples.

Inheritance

 +-----------++-----------++----------++---------++------------++------------+
Data Type | OR-Set || LWW-Set || 2P-Set || G-Set || G-Counter || PN-Counter |
+-----------++-----------++----------++---------++------------++------------+
Base Class | CmRDT-Set | -- |
|-----------------------------------------------+---------------------------+
CRDT Type | Operation-Based | State-based |
+-----------------------------------------------+---------------------------+

CRDTs Research

To learn more about CRDTs, check out this research:

• "A comprehensive study of Convergent and Commutative Replicated Data Types" paper
• CRDTs on Wikipedia
• IPFS's CRDT research group

Contribute

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License

MIT © 2017-2019 Haja Networks Oy