live-query-filter

Publish and subscribe to database queries, serve as backbone of live query change detection engine.

Designed for web-redux

Usage Example

import { createLiveQueryFilter } from 'live-query-filter'
import sinon from 'sinon' // for testing

let filter = createLiveQueryFilter()

let select_user1_profile = sinon.spy()

filter.subscribe(
  [{ table: 'user', id: 1, fields: ['username', 'rank'] }],
  select_user1_profile,
)
console.log(select_user1_profile.callCount) // 0

filter.publish([{ table: 'user', id: 1, fields: ['username'] }])
console.log(select_user1_profile.callCount) // 1

More examples refer to filter.spec.ts

License

This project is licensed with BSD-2-Clause

This is free, libre, and open-source software. It comes down to four essential freedoms [ref]:

• The freedom to run the program as you wish, for any purpose
• The freedom to study how the program works, and change it so it does your computing as you wish
• The freedom to redistribute copies so you can help others
• The freedom to distribute copies of your modified versions to others