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cachely

A tiny wrapper that sits around your request function that caches its data for a specified duration, provides updates as requested rather than polling each interval

  • 6.8.0
  • latest
  • Source
  • npm
  • Socket score

Version published
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26
decreased by-31.58%
Maintainers
1
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Created
Source

cachely

Status of the GitHub Workflow: bevry NPM version NPM downloads
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A tiny wrapper that sits around your request function that caches its data for a specified duration, provides updates as requested rather than polling each interval

Usage

Complete API Documentation.

// Import cachely
import Cachely from 'cachely'

// For our retriever, have a locally scoped variable that will showcase the caching
let fetches = 0

// Create the wrapper retriever in the cachely cache service
const cachely = new Cachely({
    // The method that will fetch the data
    retrieve() {
        return new Promise(function (resolve) {
            // after a one second delay, return the number of fetches that we have done
            setTimeout(() => resolve(++fetches), 1000)
        })
    },

    // An optional duration in milliseconds that our cache of the data will be valid for
    // When expired, on the next request of the data, we will use the method to get the latest data
    // Defaults to one day
    duration: 2000, // in this example we set it to two seconds

    // An optional function that receives debugging log messages
    // Defaults to nothing
    log: console.log,
})

// do an initial fetch of the data
cachely
    .resolve()
    .catch(console.error)
    .then(
        console.log.bind(
            console,
            'after one second as specified in our method, the result data should still be 1:',
        ),
    )

// do a subsequent fetch of the data that will be from the cache
cachely
    .resolve()
    .catch(console.error)
    .then(
        console.log.bind(
            console,
            'after a tiny delay this will be from cache, the result data should still be 1:',
        ),
    )

// wait 3000ms for the cache to invalidate itself
setTimeout(function () {
    // do a second fetch of the data
    cachely
        .resolve()
        .catch(console.error)
        .then(
            console.log.bind(
                console,
                'after one second as specified in our method, the result data should be 2, as it was our second fetch:',
            ),
        )

    // do a subsequent fetch of the data that will be from the cache
    cachely
        .resolve()
        .catch(console.error)
        .then(
            console.log.bind(
                console,
                'after a tiny delay this will be from cache, the result data should still be 2:',
            ),
        )

    // peform a manual invalidation
    cachely.invalidate()

    // do a third fetch of the data
    cachely
        .resolve()
        .catch(console.error)
        .then(
            console.log.bind(
                console,
                'after one second as specified in our method, the result data should be 3, as it was our third fetch:',
            ),
        )

    // do a subsequent fetch of the data that will be from the cache
    cachely
        .resolve()
        .catch(console.error)
        .then(
            console.log.bind(
                console,
                'after a tiny delay this will be from cache, the result data should still be 3:',
            ),
        )
}, 3000)

Install

npm

  • Install: npm install --save cachely
  • Import: import pkg from ('cachely')
  • Require: const pkg = require('cachely').default

Deno

import pkg from 'https://unpkg.com/cachely@^6.8.0/edition-deno/index.ts'

Skypack

<script type="module">
    import pkg from '//cdn.skypack.dev/cachely@^6.8.0'
</script>

unpkg

<script type="module">
    import pkg from '//unpkg.com/cachely@^6.8.0'
</script>

jspm

<script type="module">
    import pkg from '//dev.jspm.io/cachely@6.8.0'
</script>

Editions

This package is published with the following editions:

  • cachely aliases cachely/index.cjs which uses the Editions Autoloader to automatically select the correct edition for the consumer's environment
  • cachely/source/index.ts is TypeScript source code with Import for modules
  • cachely/edition-browsers/index.js is TypeScript compiled against ES2022 for web browsers with Import for modules
  • cachely/edition-es2022/index.js is TypeScript compiled against ES2022 for Node.js 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
  • cachely/edition-es2016/index.js is TypeScript compiled against ES2016 for Node.js 4 || 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
  • cachely/edition-es2022-esm/index.js is TypeScript compiled against ES2022 for Node.js 12 || 14 || 16 || 18 || 20 || 21 with Import for modules
  • cachely/edition-types/index.d.ts is TypeScript compiled Types with Import for modules
  • cachely/edition-deno/index.ts is TypeScript source code made to be compatible with Deno

History

Discover the release history by heading on over to the HISTORY.md file.

Backers

Code

Discover how to contribute via the CONTRIBUTING.md file.

Authors
Maintainers
Contributors

Finances

GitHub Sponsors donate button ThanksDev donate button Patreon donate button Liberapay donate button Buy Me A Coffee donate button Open Collective donate button crypto donate button PayPal donate button

Sponsors
  • Andrew Nesbitt — Software engineer and researcher
  • Balsa — We're Balsa, and we're building tools for builders.
  • Codecov — Empower developers with tools to improve code quality and testing.
  • Poonacha Medappa
  • Rob Morris
  • Sentry — Real-time crash reporting for your web apps, mobile apps, and games.
  • Syntax — Syntax Podcast
Donors

License

Unless stated otherwise all works are:

and licensed under:

Keywords

FAQs

Package last updated on 29 Dec 2023

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