FormStore

a really simple indexedDB based form caching/storage system.

Installation

You can install this package via npm with

npm install @tinybox-software/formstore

Usage

init

To get started with FormStore, you just have to initialize it.

import { init } from formstore;

const store = init({});

Once initialized, FormStore will find any form with the data-cache attribute on it and:

1. Attempt to load existing form data from cache, and "hydrate" the form
2. Update the forms cache on save
3. Clear the forms cache on submission

options

FormStore provides a few options via the init object:

1. beforeHydrate: Function
2. afterHydrate: Function
3. beforeCache: Function
4. afterCache: Function
5. onError: Function

here's an example of init using those hooks

import { init } from formstore;

const store = init({
  beforeHydrate: () => {console.log('loading form...')},
  afterHydrate: () => {console.log('loaded form')},
  beforeCache: () => {console.log('saving form...')},
  afterCache: () => {console.log('saved form')},
  onError: (err) => {console.log(`something went wrong ${err}`)}
})

These hooks can be useful for UI side effects (i.e showing a "saving form" indicator, showing an error when no form exists...)

Attribution

This is heavily based on idb-keyval by Jake Archibald

Testing

Because of the heavily async nature of the code I use, and considering I want to do more integration that unit tests, I'm going to be migrating from JS-DOM to something like puppeteer. Tests wont run as fast, but we'll be able to validate that FormStore works in a real world environment.