GitHub - google/sync3k-client

sync3k is an offline-first event-sourcing synchronization engine with optional end-to-end encryption.

Installation

Install with npm:

npm install --save sync3k-client

Refer to sync3k-server for installing server-side components.

Usage

Currently, sync3k-client is offered as a redux store enhancer. First, use sync3k store enhancer when creating a store:

import { createStore, applyMiddleware, compose } from 'redux';
import reducer from './reducers';
import { enhancer } from 'sync3k-client';

const store = createStore(
  reducer, // existing reducers for the application
  compose(
    enhancer,
    applyMiddleware(
      // other middlewares...
    )
  ));

Then, dispatch an initializeSync message with websocket base url to sync3k-server, topic name, optional password for encryption (or empty string), and a boolean indicating whether to ask for encryption keys.

this.props.dispatch(
  actions.initializeSync(`ws://${serverLocation}:8080/kafka`, newTopic, password, askForKeys));

sync3k-client enhancer maintains several states under sync3k. Please refer to Sync3kState type declaration for available fields. Also take a look at the included notetaking-app example for dealing with sync3k states.

Disclaimer: This is not an official Google product.