• parse/write JSON content
• parse/write ECMAScript like content
• Unquoted property names
• Single / multi-line comments
• Trailing comma allowed for objects and arrays
• Single quoted strings
• Multi-line strings (by escaping new line characters)
• Unicode CodePoint escape
• Hexadecimal/octal/binary numbers
• Numbers with leading or trailing decimal point
• Positive infinity, negative infinity, NaN
• Explicit plus sign for numbers
• Support for C#/.NET Tuples (using Tuple Element Names)
• async writing/parsing

Usage

• parsing a json string synchronously

using (var reader = new StringReader(json)) {
  var value = JsonParser.ParseSync(new JsonReader(reader));
}

or

var value = JsonUtility.ParseSync(json);

• parsing a json string asynchronously

using (var reader = new StringReader(json)) {
  var value = await JsonParser.Parsec(new JsonReader(reader));
}

or

var value = await JsonUtility.Parse(json);

• parsing a json stream synchronously

using (var reader = new StreamReader(stream)) {
  var value = JsonParser.ParseSync(new JsonReader(reader));
}

or

var value = JsonUtility.ParseSync(stream);

• parsing a json stream asynchronously

using (var reader = new StreamReader(stream)) {
  var value = await JsonParser.Parse(new JsonReader(reader));
}

or

var value = await JsonUtility.Parse(stream);

• serializing a value as json string synchronously

var sb = new StringBuilder();
using (var writer = new StringWriter(sb)) {
  var value = JsonWriter.SerializeSync(writer, value);
}
var json = sb.ToString();

or

var json = JsonUtility.SerializeSync(value);

• serializing a value as json string asynchronously

var sb = new StringBuilder();
using (var writer = new StringWriter(sb)) {
  var value = await JsonWriter.Serialize(writer, value);
}
var json = sb.ToString();

or

var json = await JsonUtility.Serialize(value);

• serializing a value to a stream synchronously

using (var writer = new StreamWriter(stream)) {
  JsonWriter.SerializeSync(writer, value);
}

or

JsonUtility.SerializeSync(stream, value);

• serializing a value to a stream asynchronously

using (var writer = new StreamWriter(stream)) {
  await JsonWriter.Serialize(writer, value);
}

or

await JsonUtility.Serialize(stream, value);

Available on NuGet

Code

public void ConfigureServices(IServiceCollection services) {
	services.AddMvc();
	services.AddScoped<IFromBodyPropertyModelBinderHelper, FromBodyPropertyModelBinderHelper>();
	services.TryAddEnumerable(ServiceDescriptor.Transient<IConfigureOptions<MvcOptions>, FromBodyPropertyJsonOptionsSetup>());
}

public class HomeController : Controller {
	public MultiplyResponse Multiply([FromBodyProperty] int x, [FromBodyProperty] int y) {
		return new MultiplyResponse() { Result = x * y };
	}
}

var request = {
	x: 2,
	y: 5
}

var ajaxOptions = {
	url: "/Home/Multiply",
	dataType: "json",
	contentType: "application/json; charset=utf-8",
	type: "POST",
	data: JSON.stringify(request),
	success: function (data, textStatus, jqXHR) {
		alert(JSON.stringify(data, null, 4));
	},
	error: function (jqXHR, textStatus, errorThrown) {
		if (jqXHR.responseJSON) {
			alert(JSON.stringify(jqXHR.responseJSON, null, 4));
		}
		alert(textStatus);
	}
}
jQuery.ajax(ajaxOptions);