https://github.com/gcanti/fp-ts-local-storage

fp-ts bindings for LocalStorage
https://github.com/gcanti/fp-ts-local-storage

fp-ts functional-programming localstorage typescript

Last synced: 14 days ago
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fp-ts bindings for LocalStorage

• Host: GitHub
• URL: https://github.com/gcanti/fp-ts-local-storage
• Owner: gcanti
• License: mit
• Created: 2018-07-25T08:50:44.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2023-10-24T17:08:43.000Z (about 1 year ago)
• Last Synced: 2024-10-22T12:19:25.977Z (19 days ago)
• Topics: fp-ts, functional-programming, localstorage, typescript
• Language: TypeScript
• Homepage: https://gcanti.github.io/fp-ts-local-storage/
• Size: 182 KB
• Stars: 49
• Watchers: 6
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-fp-ts - gcanti/fp-ts-local-storage

README

        
[fp-ts](https://github.com/gcanti/fp-ts) bindings for LocalStorage

# Documentation

- [API Reference](https://gcanti.github.io/fp-ts-local-storage)

**Example**

```ts

import * as assert from 'assert'

import { setItem, getItem } from 'fp-ts-local-storage'

import { some } from 'fp-ts/Option'

import { pipe } from 'fp-ts/pipeable'

import { chain } from 'fp-ts/IO'

// const program: IO>

const program = pipe(

  setItem('foo', JSON.stringify({ bar: 'baz' })),

  chain(() => getItem('foo'))

)

assert.deepStrictEqual(program(), some('{"bar":"baz"}'))

```

Note that `localStorage` may throw, for example if disabled by the user or with a `QuotaExceededError`, so you may want to wrap the API call with a `tryCatch`

```ts

import { setItem, getItem } from 'fp-ts-local-storage'

import { chain, tryCatch } from 'fp-ts/IOEither'

import { pipe } from 'fp-ts/pipeable'

import { toError } from 'fp-ts/Either'

// const program: IOEither>

const program = pipe(

  tryCatch(setItem('foo', JSON.stringify({ bar: 'baz' })), toError),

  chain(() => tryCatch(getItem('foo'), toError))

)

```