redux-search

Higher-order Redux library for searching collections of objects. Search algorithms powered by js-worker-search.

Check out the live demo at treasure-data.github.io/redux-search

Or install it yourself with NPM:

npm install --save redux-search

Overview

This README provides a quick introduction of redux-search. For more details refer to the API documentation.

redux-search searches collections of documents and returns results as an Array of document ids. It is important to note that the documents themselves aren't returned. This is because the actual search is performed in a web-worker thread for performance reasons. In order to avoid serializing the documents and passing them back and forth, redux-search simply passes their ids.

Because of this, each document must contain an id attribute.

redux-search provides provides an action for searching resources as well as selectors for getting search results and the current search text. It then watches the store for resource changes and automatically updates search results as needed.

Example

Configuring the Store

redux-search watches the store for changes to searchable collections and automatically builds a search index. To do this, it simply needs to be told which resources to watch and which fields to index.

import { applyMiddleware, combineReducers, compose, createStore } from 'redux'
import { reducer as searchReducer, reduxSearch } from 'redux-search'

// Configure reducer to store state at state.search
// You can store it elsewhere but you will need to supply your own :searchStateSelector
const rootReducer = combineReducers({
  search: searchReducer
  // Your other reducers go here...
})

// Compose :reduxSearch with other store enhancers
const store = compose(
  applyMiddleware(...yourMiddleware),
  reduxSearch({
    // Configure redux-search by telling it which resources to index for searching
    resourceIndexes: {
      // In this example Books will be searchable by :title and :author
      books: ['author', 'title']
    },
    // This selector is responsible for returning each collection of searchable resources
    resourceSelector: (resourceName, state) => {
      // In our example, all resources are stored in the state under a :resources Map
      // For example "books" are stored under state.resources.books
      return state.resources.get(resourceName)
    }
  })
)(createStore)(rootReducer)

Connecting a Component

redux-search provides selectors and action-creators for easily connecting components with the search state. For example, using reselect you might connect your component like so:

// Elsewhere, in a smart component module...
import { connect } from 'react-redux'
import { createSelector } from 'reselect'
import { createSearchAction, getSearchSelectors } from 'redux-search'

// :books is a map (Object or Immutable.Map) with ids as keys
// These ids correspond to :result returned by getSearchSelectors('books')
const books = state => state.getIn(['resources', 'books'])

// :text is a selector that returns the text Books are currently filtered by
// :result is an Array of Book ids that match the current seach :text (or all Books if there is no search :text)
const {
  text as searchText,
  result as bookIds
} = getSearchSelectors('books')

const selectors = createSelector(
  [bookIds, books, text],
  (bookIds, books, text) => ({
    bookIds,
    books,
    searchText
  })
)

const actions = {
  searchBooks: createSearchAction('books')
}

export default connect(selectors, actions)(YourConnectedComponent)

Changelog

Changes are tracked in the changelog.

License

redux-search is available under the MIT License.