# Attributes


[](https://hex.pm/packages/attributes)

Set and get complex attributes on modules
## Installation
The package can be installed by adding `attributes` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:attributes, "~> 0.1.1"}
]
end
```
## Documentation
Documentation can be found at [https://hexdocs.pm/attributes](https://hexdocs.pm/attributes).
## Usage
Attributes offers utility functions to set and get complex attributes on modules.
```elixir
defmodule MyModule do
Attributes.set(__MODULE__, [:path, :to, :attr], :value)
end
```
Attributes supports nested maps and keyword.
The previous assignment could be rewritten as follow:
```elixir
Attributes.set(__MODULE__, [:path], [to: [attr: :value]])
```
```elixir
Attributes.set(__MODULE__, [:path], %{to: %{attr: :value}})
```
After defining an attribute, you can obtain its value using `Attributes.get/2`, `Attributes.get/3` or `Attributes.get!/2` methods.
```elixir
iex> Attributes.get(MyModule, [:path, :to, :attr])
iex> :value
```
```elixir
iex> Attributes.get(MyModule, [:path, :to])
iex> [attr: :value]
```