updux/docs/concepts.md

Updux concepts

actions

Updux internally uses the package ts-action to create action creator functions. Even if you don't use Typescript, I recommend that you use it, as it does what it does very well. But if you don't want to, no big deal. Updux will recognize a function as an action creator if it has a type property. So a homegrown creator could be as simple as:

function action(type) {
    return Object.assign( payload => ({type, payload}), { type } )
}

effects

Updux effects are redux middlewares. I kept that format, and the use of next mostly because I wanted to give myself a way to alter actions before they hit the reducer, something that redux-saga and rematch don't allow.

An effect has the signature

const effect = ({ getState, dispatch }) => next => action => { ... }