https://github.com/candisio/mongo-selector-simplifier

Algorithmic MongoDB selector simplifier
https://github.com/candisio/mongo-selector-simplifier

mongodb query selector simplifier

Last synced: 3 days ago
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Algorithmic MongoDB selector simplifier

• Host: GitHub
• URL: https://github.com/candisio/mongo-selector-simplifier
• Owner: CandisIO
• License: mit
• Created: 2018-07-30T21:17:12.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2020-04-04T16:53:05.000Z (about 5 years ago)
• Last Synced: 2025-05-13T13:19:24.726Z (3 days ago)
• Topics: mongodb, query, selector, simplifier
• Language: JavaScript
• Size: 170 KB
• Stars: 4
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Mongo Selector Simplifier [![CircleCI](https://circleci.com/gh/CandisIO/mongo-selector-simplifier/tree/master.svg?style=svg)](https://circleci.com/gh/CandisIO/mongo-selector-simplifier/tree/master) [![npm](https://img.shields.io/npm/v/@candis/mongo-selector-simplifier.svg)](https://www.npmjs.com/package/@candis/mongo-selector-simplifier)

Reduce MongoDB selector query complexity using the commutative, associative and

distributive laws by de-separating nested clauses. The output can often times

help MongoDB's query planner to chose the best index.

## Install

```

npm install --save @candis/mongo-selector-simplifier

```

or

```

yarn add @candis/mongo-selector-simplifier

```

## Usage

```js

import { simplify } from "@candis/mongo-selector-simplifier";

const selector = {

  $and: [

    { name: { $in: ["Rey", "Leia Organa", "Padmé Amidala", "Jyn Erso"] } },

    { name: "Rey" }

  ],

  gender: "Female"

};

const simplifiedSelector = simplify(selector); // outputs { gender: 'Female', 'name': 'Rey' }

```

## Credit

Original work by @gsuess.

## License

`mongo-selector-simplifier` is [MIT licensed](./LICENSE).