https://github.com/mcollina/single-user-cache

https://github.com/mcollina/single-user-cache

Last synced: 3 days ago
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• Host: GitHub
• URL: https://github.com/mcollina/single-user-cache
• Owner: mcollina
• License: other
• Created: 2019-03-08T14:59:23.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2023-11-16T16:38:47.000Z (about 1 year ago)
• Last Synced: 2024-12-17T15:42:14.711Z (5 days ago)
• Language: JavaScript
• Size: 21.5 KB
• Stars: 37
• Watchers: 3
• Forks: 5
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# single-user-cache

A simple cache system for a single user request, built on the same concepts of [data loader](https://github.com/facebook/dataloader).

## Install

```js

npm i single-user-cache

```

## Usage

```js

const { Factory } = require('.')

const factory = new Factory()

factory.add('fetchSomething', {

  // cache by default, set to false to just do batching

  cache: true

}, async (queries, context) => {

  console.log(queries)

  // [ 42, 24 ]

  console.log(context)

  // { some: 'data' }

  return queries.map((k) => {

    return { k }

  })

})

async function run () {

  const context = {

    some: 'data'

  }

  const cache = factory.create(context)

  const p1 = cache.fetchSomething(42)

  const p2 = cache.fetchSomething(24)

  const res = await Promise.all([p1, p2])

  console.log(res)

  // [

  //   { k: 42 },

  //   { k: 24 }

  // ]

}

run().catch(console.log)

```

If the query parameter is an object, its cache key will be generated

using

[safe-stable-stringify](https://github.com/BridgeAR/safe-stable-stringify).

## License

MIT