YAML Serialization in Elixir
YAML Serialization in Elixir[edit]
YAML Serialization is a powerful mechanism in Elixir that allows developers to convert Elixir data structures into YAML format and vice versa. YAML, which stands for "YAML Ain't Markup Language", is a human-readable data serialization format that is widely used for configuration files, data exchange, and inter-application communication.
Installing the YAML library[edit]
To use YAML serialization in Elixir, the first step is to add the appropriate library to your project's dependencies. In this case, we will be using the popular `yamerl` library.
Add the following line to your `mix.exs` file: ``` defp deps do
[
{:yamerl, "~> 0.8"}
]
end ```
Then, run `mix deps.get` to fetch and compile the dependency.
Serializing Elixir Data to YAML[edit]
Here is an example of serializing an Elixir data structure to YAML:
```elixir data = %{name: "John", age: 30, interests: ["Elixir", "YAML"]} yaml = :yamerl.encode(%{data}) ```
Deserializing YAML to Elixir Data[edit]
Here is an example of deserializing YAML into an Elixir data structure:
```elixir yaml = "---\nname: John\nage: 30\ninterests:\n - Elixir\n - YAML\n" {:ok, data} = :yamerl.decode(yaml) ```
Handling Options[edit]
The `yamerl` library provides various options to customize the serialization and deserialization processes. These options can be passed as arguments to the `:yamerl.encode/2` and `:yamerl.decode/2` functions.
For example, to pretty-print the YAML output, you can set the `:output_style` option to `:pretty`:
```elixir data = %{name: "John", age: 30, interests: ["Elixir", "YAML"]} yaml = :yamerl.encode(%{data}, output_style: :pretty) ```
Recap[edit]
YAML Serialization in Elixir is a useful feature for converting Elixir data structures to YAML format and vice versa. With libraries like `yamerl`, developers can easily work with YAML files and integrate their Elixir applications with systems that utilize YAML as a data interchange format.