How to convert YAML to JSON?

Question

I'm looking to convert between a YAML file, and JSON. This was really difficult to find any information on.

Answer 1

If you do not need the features of Json.NET, you can also use the Serializer class directly to emit JSON:

// now convert the object to JSON. Simple!
var js = new Serializer(SerializationOptions.JsonCompatible);

var w = new StringWriter();
js.Serialize(w, o);
string jsonText = w.ToString();

You can check two working fiddles here:

• Convert YAML to JSON
• Convert YAML to JSON using Json.NET

Answer 2

It is possible to do this by using the built-in JSON library along with YamlDotNet. It wasn't apparent in the YamlDotNet documentation, but I found a way to do it rather simply.

// convert string/file to YAML object
var r = new StreamReader(filename); 
var deserializer = new Deserializer(namingConvention: new CamelCaseNamingConvention());
var yamlObject = deserializer.Deserialize(r);

// now convert the object to JSON. Simple!
Newtonsoft.Json.JsonSerializer js = new Newtonsoft.Json.JsonSerializer();

var w = new StringWriter();
js.Serialize(w, yamlObject);
string jsonText = w.ToString();

I was surprised this worked as well as it did! JSON output was identical to other web based tools.