https://github.com/rupurt/juice

Reduce in memory data structures using a lightweight query language
https://github.com/rupurt/juice

elixir query

Last synced: 3 months ago
JSON representation

Reduce in memory data structures using a lightweight query language

• Host: GitHub
• URL: https://github.com/rupurt/juice
• Owner: rupurt
• License: mit
• Created: 2018-05-06T06:01:40.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-06-22T03:52:04.000Z (over 4 years ago)
• Last Synced: 2024-10-30T07:08:56.122Z (3 months ago)
• Topics: elixir, query
• Language: Elixir
• Size: 28.3 KB
• Stars: 26
• Watchers: 1
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# Juice

[![Build Status](https://github.com/rupurt/juice/workflows/test/badge.svg?branch=master)](https://github.com/rupurt/juice/actions?query=workflow%3Atest)

[![hex.pm version](https://img.shields.io/hexpm/v/juice.svg?style=flat)](https://hex.pm/packages/juice)

Reduce in memory data structures using a lightweight query language

## Installation

Add `juice` to your list of dependencies in `mix.exs`

```elixir

def deps do

  [{:juice, "~> 0.0.3"}]

end

```

## Usage

Juice can collect and reject string or atom keys from an Elixir [Map](https://hexdocs.pm/elixir/Map.html) or [List](https://hexdocs.pm/elixir/List.html).

Given the map

```elixir

iex> fruit_basket = %{

	apples: {

		granny_smith: 10,

		golden_delicious: 3

	},

	"oranges" => 5,

	plums: 6,

	"mangos" => 2,

	recipients: [:steph, "michael", :lebron, "charles"]

}

```

Return everything with a wildcard `*`

```elixir

iex> Juice.squeeze(fruit_basket, "*") == %{

	apples: {

		granny_smith: 10,

		golden_delicious: 3

	},

	"oranges" => 5,

	plums: 6,

	"mangos" => 2,

	recipients: [:steph, "michael", :lebron, "charles"]

}

```

Remove `plums` and `mangos`

```elixir

iex> Juice.squeeze(fruit_basket, "* -plums -mangos") == %{

	apples: {

		granny_smith: 10,

		golden_delicious: 3

	},

	"oranges" => 5,

	recipients: [:steph, "michael", :lebron, "charles"]

}

```

Only collect `granny_smith` `apples` and `oranges` with nested `.` notation

```elixir

iex> Juice.squeeze(fruit_basket, "apples.granny_smith oranges") == %{

	apples: {

		granny_smith: 10,

	},

	"oranges" => 5

}

```

Collect `plums` and `mangos` for `charles`

```elixir

iex> Juice.squeeze(fruit_basket, "plums mangos recipients.charles") == %{

	plums: 6,

	"mangos" => 2,

	recipients: ["charles"]

}

```