redux-lunr

Redux middleware that makes your store searchable with Lunr.js

Project Status

• Fairly stable but API might change a bit, making it more user friendly.
• Example: not yet finished. Will finish when I'm back from my holiday.

Installation

npm install redux-lunr --save

Implementation

Step 1 : add the redux-lunr reducer to Redux.

import { combineReducers } from 'redux'
import { lunrReducer } from 'redux-lunr'
...
const rootReducer = combineReducers({
    //other reducers here
    lunr: lunrReducer
})

Step 2 : Define options.

const lunrOptions = {
  index: {
    ref: 'id',
    name: { boost: 15 },
    bio: { boost: 5 }
  },
  mapper: (doc) => {
    return {
      id: doc.id,
      name: doc.profile.name,
      bio: doc.profile.bio
    }
  },
  store: {
    existingStore: true,
    reducer: 'users',
    entity: 'profiles'
  }
}

• index: consists of your Lunr index;
• mapper : optional mapper function that you can define if you want to index nested properties.
• store : If you want to index an existing store, pass the information here. Define the reducer and the entities.

For example, a users reducer that would match the above options:

function users(state = {
    //other properties here
    profiles: [
        {id: 1, profile: { name: 'Foo', bio: 'Awesome life story' }},
        {id: 2, profile: { name: 'Bar', bio: 'An even better life story' }}
    ]
}, actions) {
    switch (action.type) {
        //etc
    }
}

Step 3 : add the redux-lunr middleware to Redux.

import { createStore, applyMiddleware, compose } from 'redux'
import { createLunrMiddleware } from 'redux-lunr'
import thunkMiddleware from 'redux-thunk'

const finalCreateStore = compose(
    applyMiddleware(createLogger(),createLunrMiddleware(lunrOptions))
)(createStore);

usage

Redux-lunr's API has a number of actions you can utilize.

loadDocsIntoIndex(documents: Array)

import { loadDocsIntoIndex } from 'redux-lunr'
dispatch(loadDocsIntoIndex([{}, {}, {}])

Pass an array of objects to index and thus make it searchable.

loadStateIntoIndex()

import { loadStateIntoIndex } from 'redux-lunr'
dispatch(loadStateIntoIndex())

When you want to search an existing store (defined in the options object), call loadStateIntoIndex() to actually index this store.

loadPreparedIndexIntoIndex(preparedSearchIndex)

import { loadPreparedIndexIntoIndex } from 'redux-lunr'
dispatch(loadPreparedIndexIntoIndex(serializedLunrIndex))

If you want to index a huge number of documents, it's probably smarter to do this indexing on your server. Serialize this index and load the index on the client. See olivernn/lunr.js#60

You can pass the serialized index to fhis function.

lunrStartSearch(query: String, limit: Int)

Do your searching here. The results will be saved in in the lunr Reducer under the property results

import { lunrStartSearch } from 'redux-lunr'
dispatch(lunrStartSearch('foo', 10))

lunrResetSearchResults()

import { lunrResetSearchResults } from 'redux-lunr'
dispatch(lunrResetSearchResults())

Reset the search results. Resets the property results in the lunr Reducer

TODO

• Add pipeline functions
• Add example