novux

novux

novux lets you to write Redux code simpler & faster by using an opinionated reducer generator.

• less boilerplate: instead of having to write and maintain dozens of actions creators, simply change state using two actions, update or reset.
• less maintenance: reduce the number of tests you have to write to only focus on business logic — all reducer action creator tests are handled by novux
• code faster: easily declare and describe state changes to make coding & collaboration easier, even as state changes become more complex

Installation

npm install novux
npm run build
npm run test

Get started

Create your reducers

import createReducer from 'novux';

const initialStates = {
  user: {
    name: 'Michael',
    company: 'Nova Credit'
  },
};

const userReducer = createReducer('user', initialStates.user);

Dispatch actions

novux lets you run Redux by handling only two actions: update and reset.

update is used to update the state of a single reducer given an object. reset is used to reset the reducer to its initial state or reset specific keys to their initial values.

Both actions have the following signature: actionName(reducerName, tag, options)

• actionName: how is the state being changed?
• reducerName: which reducer is being affected?
• tag: why is this change relevant?
• options: what values are affected?

Example:

import { update, reset } from 'novux';

dispatch(update('user', 'Change username', {
	username: 'Stash',
}));

dispatch(reset('user', 'Reset the initial state', {
	reset: [],
}));

dispatch(reset('user', 'Reset specific keys', {
	reset: ['username'],
}));

// dispatch is provided by redux: http://redux.js.org/docs/api/Store.html#dispatchaction

Use dot notation paths

When reseting state, you can also pass in paths in dot notation

dispatch(reset('user', 'Reset paths', {
	reset: ['address.street'],
}));

// if a path is defined in the initial state, it will be reset to its initial value
// if a path is undefined in the initial state, `novux` will seek the longest sub path defined in the initial state and reset

Why a tag

Using the tag string instead of an action name to define a state change lets you describe state changes programatically.

The tag is included in the updated state under the key _lastAction, allowing you to keep track of what action last affected a specific reducer in your dev tools.

const consent = true;
const { username } = getState().user;
dispatch(update('user', `${username} ${consent ? 'grants' : 'revokes'} consent`, {
	consent,
}));

Connecting the dots

novux can help you declare increasingly complicated sets of state updates in simple and consistent ways.

const toggleConsent = consent => (dispatch, getState) => {
	const { username } = getState().user;
	dispatch(update('user', `${username} ${consent ? 'grants' : 'revokes'} consent`, {
		consent,
	}));

	if (!consent) {
		dispatch(update('app', `Show error & disable button`, {
			error: {
				msg: 'You need to grant consent to proceed',
				type: 'flash',
			},
			button: { able: false }
		}));
	}
};
// this example makes use of redux-thunk to easily access dispatch and state