Redux-Bundler Async Resources Hooks

React bindings to redux-bundler-async-resources

Installation

npm install --save redux-bundler-hook redux-bundler-async-resources redux-bundler-async-resources-hooks

Usage

(assuming you've used createAsyncResourceBundle for "hotCarDeals" and createAsyncResourcesBundle for "carDeals" on a specific car id)

import React from 'react'
import { useConnect } from 'redux-bundler-hook'
import { useAsyncResource, useAsyncResourcesItem } from 'redux-bundler-async-resources-hooks'

// ... other imports

export default function MyAutomarketDashboard() {
  const { currentCarId } = useConnect('selectCurrentCarId')

  const { hotCarDeals, hotCarDealsIsLoading, hotCarDealsError } = useAsyncResource('hotCarDeals')

  const {
    item: currentCarDeals,
    itemIsLoading: currentCarDealsLoading,
    itemError: currentCarDealsError,
  } = useAsyncResourcesItem('carDeals', currentCarId)

  return (
    <>
      <h1>Here are some deals for you on this car:</h1>
      <CarDealsList deals={currentCarDeals} loading={currentCarDealsLoading} error={currentCarDealsError} />
      <h1>Also take a look at these hot deals:</h1>
      <CarDealsList deals={hotCarDeals} loading={hotCarDealsIsLoading} error={hotCarDealsError} />
    </>
  )
}

Hooks above will provide you all fields matching selectors that bundles are capable of.

Using with Suspense and Error Boundaries

Warning: using Suspense or Error boundaries assumes throwing things. Make sure these hooks are the only ones or the last ones you use within a single component in order to respect Rules of Hooks.

Both hooks receive one last settings parameter which can have following fields (all disabled by default):

• throwErrors – if truthy, will throw an error for you when there is an error and there is no past data to show. Setting it to "always" will always throw if there is an active error.
• throwPromises – if truthy, will throw a promise when item is loading and there is no data to show. Setting it to "always" will always throw a promise if item is loading or refreshing.
• eagerFetch – see below

Using errors

Error boundary can implement a proper "wait-retry" mechanism. Instead of throwing original error, hook will throw an instance of AsyncResourceError which will have following properties:

• resourceName – which should be self-explanatory
• originalError – an instance of original exception that bundle's getPromise rejected with
• permanent – translated from original error
• retryAt – a timestamp at which bundle will attempt next retry for this item
• retry – method that can force-trigger a fetch on an item

Enabling default behavior

Default values for throwErrors and throwPromises can be overridden per hook. If you prefer to always use error boundaries and/or suspenses, you can do the following early before any react code is on:

import { useAsyncResource, useAsyncResourcesItem } from 'redux-bundler-async-resources-hooks'

useAsyncResource.defaults = { throwErrors: true, throwPromises: true }
useAsyncResourcesItem.defaults = { throwErrors: true, throwPromises: true }

Eager fetch

When setting eagerFetch to a truthy value in hooks settings parameter, hook will fire an effect which would trigger fetch actions on the item when it is pending for fetch.

It is on-purpose impossible to override with setting with a default.