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promise-middleware-redux

v1.2.0

Published

## Usage ### Import to redux store file ```js import { createStore, applyMiddleware } from 'redux'; import reducer from './reducers'; import { promiseMiddleware } from 'promise-middleware-redux';

Downloads

421

Readme

Promise Middleware

Usage

Import to redux store file

import { createStore, applyMiddleware } from 'redux';
import reducer from './reducers';
import { promiseMiddleware } from 'promise-middleware-redux';

export default createStore(
  reducer,
  applyMiddleware(promiseMiddleware),
);

Redux action

export const fetchFacts = () => ({
  type: 'FETCH_FACTS',
  payload: getFacts()
});
export const fetchFacts = () => ({
  type: 'FETCH_FACTS',
  pendingType: 'FETCH_FACTS_LOADING',
  fulfilledType: 'FETCH_FACTS_DONE',
  rejectedType: 'FETCH_FACTS_ERROR',
  payload: getFacts()
});

Action Creator

export const [
  fetchFacts, // this is an action creator
  FETCH_FACTS,
  FETCH_FACTS_PENDING,
  FETCH_FACTS_FULFILLED
  FETCH_FACTS_REJECTED
] = createAction('FETCH_FACTS', getFacts);
  • fetchFacts is an action creator
  • FETCH_FACTS is an action type that is dispatched when the promise fulfills. This action will include a payload with the fulfilled value.
  • FETCH_FACTS_PENDING is an action type that is dispatched before the promise fulfills.
  • FETCH_FACTS_FULFILLED is an action type that is dispatched if the promise fulfills.
  • FETCH_FACTS_REJECTED is an action type that is dispatched if the promise rejects. This action will also include a payload with an error.
  • createAction is a function that takes the name of an action type and a promise and returns all of the above in an array.