Template for a Redux Ducks module

ducks-module-tmpl.js

const prop = key => obj => obj[key];

// Action Types
const MY_ACTION = '{my}-app/{module}/MY_ACTION';

// Action Creators
export const myAction = (value) => ({
    type: MY_ACTION,
    payload: value,
});

// Selectors
export const getValue = prop('value');

// Initial State
const getInitialState = ({ value = 'foo' } = {}) => ({
    value,
});

// Reducer
export default function reducer(state = getInitialState(), action = {}) {
    switch(action.type) {
        case MY_ACTION:
            return { ...state, value: action.payload };
        default:
            return state;
    }
}

// Middleware
export const myMiddleware = store => next => action => {
    next(action);
};