# Elixir JSON
[](https://travis-ci.org/cblage/elixir-json?branch=develop)
[](http://inch-ci.org/github/cblage/elixir-json?branch=develop)
This library provides a natively implemented JSON encoder and decoder for Elixir.
All contributions are welcome.
# Installing
## Latest stable version
Add ```{:json, "~> 1.0"}``` to your project's ```mix.exs``` file,
in the dependencies list and run ```mix deps.get json```.
## Bleeding Edge
In addition to the above, which should always be use for ```MIX_ENV=prod```,
you can use bleeding edge on your de builds and they will always be updated
with the latest and most performant builds.
Add ```{:json, github: "cblage/json", branch: "develop", only: [:dev, :test] }```
to your project's ```mix.exs``` file,
in the dependencies list and run ```mix deps.get json```.
I strongly recommend keeping ```{:json, "~> 1.0"}``` for ```MIX_ENV=prod```.
### Example for a project that already uses [Plug](https://github.com/elixir-plug/plug):
```elixir
defp deps do
[{:cowboy, "~> 1.0.0"},
{:plug, "~> 1.0"},
{:json, "~> 1.0"}
end
```
### Example for a project that uses and bleeding edge for dev and [Plug](https://github.com/elixir-plug/plug):
```elixir
defp deps do
[{:cowboy, "~> 1.0.0"},
{:plug, "~> 1.0"},
json(Mix.env())]
end
defp json(:prod), do: {:json, "~> 1.0"}
defp json(:dev), do: {:json, github: "cblage/json", branch: "develop", only: [:dev, :test]}
defp json(:test), do: {:json, github: "cblage/json", branch: "develop", only: [:dev, :test]}
```
# Usage
Encoding an Elixir type
```elixir
@doc "
JSON encode an Elixir list
"
list = [key: "this will be a value"]
is_list(list)
# true
list[:key]
# "this will be a value"
{status, result} = JSON.encode(list)
# {:ok, "{\"key\":\"this will be a value\"}"}
String.length(result)
# 41
```
Decoding a list from a string that contains JSON
```elixir
@doc "
JSON decode a string into an Elixir list
"
json_input = "{\"key\":\"this will be a value\"}"
{status, list} = JSON.decode(json_input)
{:ok, %{"key" => "this will be a value"}}
list[:key]
# nil
list["key"]
# "this will be a value"
```
# License
The Elixir JSON library is available under the [BSD 3-Clause aka "BSD New" license](http://www.tldrlegal.com/l/BSD3)