redux-effects-fetchr

Caching middleware for redux-effects-fetchr.

Installation

npm install --save redux-effects-fetchr-cache

Usage

Installing the middleware:

import { createStore, applyMiddleware } from 'redux';
import Fetchr from 'fetchr';
import stepsMiddleware from 'redux-effects-steps';
import fetchrMiddleware from 'redux-effects-fetchr';
import fetchrCacheMiddleware from 'redux-effects-fetchr-cache';
import rootReducer from './reducers';

const fetchr = new Fetchr({
  xhrPaht: '/api'
});

const cacheConfig = {
  max: 500,
  maxAge: 1000 * 60 * 60
};

const store = createStore(
  rootReducer,
  applyMiddleware(
    stepsMiddleware,
    fetchrCacheMiddleware(cacheConfig),
    fetchrMiddleware(fetchr)
  )
);

redux-effects-fetchr-cache must be installed before redux-effects-fetchr.

API

Middleware

fetchrCacheMiddleware(cacheConfig, [options])

Creates redux middleware.

Arguments

• cacheConfig (Object): See lru-cahce API docs for more info.
• options (Object):
  • excludes (Array): An array of the resource names to not use the cache. Defaults [].
  • fromCache (Function): Checks whether an action is target to obtain from cache. Defaults () => true.
    • Arguments:
      • action (Object): An action.
      • state (Object): The current state of the Store.
    • Returns:
      • (Boolean): If true, uses cache to obtain the resource.
  • toCache (Function): Checks whether an action is target to store to cache. Defaults () => true.
    • Arguments:
      • action (Object): An action.
      • state (Object): The current state of the Store.
    • Returns:
      • (Boolean): If true, saves the obtaining resource to cache.
  • resetCache (Function): reset cache if resetCache function returns true. Defaults () => false.
    • Arguments:
      • action (Object): An action.
      • state (Object): The current state of the Store.
    • Returns:
      • (Boolean): If true, reset all cache.

Returns

• (Function): Redux middleware.