https://github.com/akiroz/re-frame-storage

re-frame interceptors for browser local storage
https://github.com/akiroz/re-frame-storage

clojurescript localstorage re-frame

Last synced: 2 days ago
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re-frame interceptors for browser local storage

• Host: GitHub
• URL: https://github.com/akiroz/re-frame-storage
• Owner: akiroz
• License: mit
• Created: 2016-09-28T15:51:28.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2023-01-27T15:20:01.000Z (over 1 year ago)
• Last Synced: 2024-06-21T15:23:21.946Z (9 days ago)
• Topics: clojurescript, localstorage, re-frame
• Language: Clojure
• Homepage:
• Size: 167 KB
• Stars: 59
• Watchers: 4
• Forks: 7
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-re-frame - re-frame-storage - frame interceptors for browser local storage (Tools / Utils)

README

        
# re-frame-storage

[![Clojars Project](https://img.shields.io/clojars/v/akiroz.re-frame/storage.svg)](https://clojars.org/akiroz.re-frame/storage)

[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/akiroz/re-frame-storage/master/LICENSE)

[![Build Status](https://travis-ci.org/akiroz/re-frame-storage.svg?branch=master)](https://travis-ci.org/akiroz/re-frame-storage)

A very simple re-frame wrapper around [storage-atom][storage-atom] for persisting app state.

Depends on `re-frame >= 0.8.0`.

## Usage

There are 2 ways to use this:

### 1. As individual re-frame fx & cofx

```clojure

(ns my-app

  (:require [akiroz.re-frame.storage :refer [reg-co-fx!]]))

;; both :fx and :cofx keys are optional, they will not be registered if unspecified.

(reg-co-fx! :my-app         ;; local storage key

            {:fx :store     ;; re-frame fx ID

             :cofx :store}) ;; re-frame cofx ID

;; ...

(reg-event-fx

  :read-foo-store-bar

  [(inject-cofx :store)]

  (fn [{:keys [store]} _]

    (print (:foo store))

    {:store (assoc store :bar "qux")}))

```

### 2. As a re-frame interceptor that automatically persists part of your app-db

```clojure

(ns my-app

  (:require [akiroz.re-frame.storage :refer [persist-db]]))

;; define a custom reg-event-db

;; local storage key is :my-app

;; everything inside the db's :persistent key is automatically stored and retreived.

(defn my-reg-event-db

  [event-id handler]

  (reg-event-fx

    event-id

    [(persist-db :my-app :persistent)]

    (fn [{:keys [db]} event-vec]

      {:db (handler db event-vec)})))

;; ...

(my-reg-event-db

  :read-foo-store-bar

  (fn [db _]

    (print (get-in db [:persistent :foo]))

    (assoc-in db [:persistent :bar] "qux")))

;; Or, if you want to persist multiple DB keys:

(defn my-reg-event-db

  [event-id handler]

  (reg-event-fx

    event-id

    [(persist-db-keys :my-app [:persistent-1 :persistent-2])]

    (fn [{:keys [db]} event-vec]

      {:db (handler db event-vec)})))

;; May want an init helper to dispatch on app init

(my-reg-event-db :init (fn [db] db))

```

[storage-atom]: https://github.com/alandipert/storage-atom