redux-state-reactor's Introduction

redux-state-reactor

not yet implemented

redux middleware to dispatch actions using state selectors

npm install --save redux-state-reactor

background

reactors are similar to reselect selectors,

they receive the state and return either an action or false.

the concept has been lifted from redux-bundler's bundle.reactX.

example

const { createStore, applyMiddleware } = require('redux')
const { middleware: stateReactorMiddleware } = require('redux-state-reactor')

const actions = require('./actions')

const reducer = (state = {}, action) => {
  if (action.type === 'AUTHENTICATE_START') {
    return Object.assign(state, { isAuthenticating: true })
  } else if (action.type === 'AUTHENTICATE_COMPLETE') {
    return Object.assign(state, { isAuthenticating: false, isAuthenticated: true })
  }
  /* ... */
}

const authenticationReactor = state => {
  if (state.isAuthenticated) return false
  if (state.isAuthenticating) return false // to avoid reactor cycle
  return actions.authenticate()
}

const stateReactors = [
  authenticateReactor
]

const store = createStore(
  reducer,
  applyMiddleware(
    stateReactorMiddleware(reactors)
  )
)

// with empty state, will automatically start authenticating!

usage

`{ middleware } = require('redux-state-reactor')`

license

The Apache License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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