Redux-async-request-middleware NPM

redux-async-request-middleware

Handling of asynchronous request in Redux. You can create Redux Standard Async Action(RSAA) by createRSAA which will be catched by redux-async-request-middleware and then dispatches Flux Standard Action(FSA) after the asynchronous work done.

Installation

npm install --save redux-async-request-middleware

or use yarn

yarn add redux-async-request-middleware

Usage

configureStore.js

import { createStore, applyMiddleware } from 'redux'
import { reduxAsyncMiddleware } from 'redux-async-request-middleware'
import reducers from './reducers'

export default function configureStore(initialState) {
  const store = createStore(
    reducers,
    initialState,
    applyMiddleware(reduxAsyncMiddleware)
  )
  return store
}

api/user.js

import { createRSAA } from 'redux-async-request-middleware'

const getUserAPI = (id) => get(`api/user/get?id=${id}`)

export const getUser = createRSAA('@@user/getUser', getUserAPI)

UserComponent.js

import React from 'react'
import { connect } from 'react-redux'
import { getUser } from './user.js'

class UserComponent extends React.Component{
  state = {
    user: null,
  }
  componentDidMount() {
    const { getUser } = this.props
    getUser(123)
  }
  render() {
    const { user } = this.state
    return (
      <div>{user}</div>
    )
  }
}

const mapDispatchToProps = {
  getUser: getUser
}

export default connect(null, mapDispatchToProps)(UserComponent)

Test

TODO

API

`createRSAA`

The createRSAA generates RSAA.

Methods
- createRSAA(type, asyncFunction)(...asyncFunctionArguments)
Parameters
- type(String): defines the unique type of the related async actions. e.g.: type_PENDING, type_RESOLVED, type_REJECTED
- asyncFunction(Function): function which returns Promise
- ...asyncFunctionArguments(arguments): arguments will call by asyncFunction

onResolved and onRejected receives response(orerror) and Redux Store's getState as arguments. They are usually used as callback function of the asynchronous work.

`reduxAsyncMiddelware`

Redux middleware

`getMiddleActionTypes(type)`

You can get each action type by getMiddleActionTypes with the paramter type which same passed to createdRSAA. This will be useful if you want to reduce the actions created by RSAA in redux reducers.

e.g.

const [
    pendingType,  // pending action's type
    resolvedType, // resolved action's type
    rejectedType, // rejected action's type
  ] = getMiddleActionTypes(type)