reducio v4.0.0

reducio

A library for getting rid of switch-case boilerplate in redux reducers

How does it help me

Ever noticed how your reducers mostly do repetitive tasks, like updating fetched data, toggling something, stuff like this? I bet you did, and reducio may help you get rid of it. How? Reducio allows you to create a reducer creator - a function, which takes some parameters and returns a fully featured reducer, which you can later plug where your architecture allows you to. Reducio also provides you with utilities to compose reducers (by reducer I mean a function which takes two parameters, old state and action and returns new state based on action) into one combined reducer function.

Let's see how it works in Usage

Installation

npm install reducio

Usage

import { createReducer } from 'reducio';
import { filter } from 'lodash';

const basicReducer = createReducer(
  // this reducer will only get invoked when action.type equals SOMETHING
  (action) => action.type === 'SOMETHING',
  // this reducer sets the `key` property of state to action.payload. Yes, just like your reducers
  (state, action) => Object.assign({}, state, { key: action.payload })
  // the third argument is the action modifier
  // it accepts an action and the result of that function is 'Object.assign'ed
  // to a new action, which initially has the props of an old action
  // Resulting action is then passed to a 2nd argument of createReducer
  (action) => ({ payload: action.data.filter(item => item.hasThisVariable))}
)