JSON Serializers

Other Serialization technologies include Binary and XML Serialization.

System.Text.Json

New hotness <3

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public string ToJson(object obj)
{
	return JsonSerializer.Serialize(obj);
}

Json Serializer Options

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public static JsonSerializerOptions IgnoreDefaultValues { get; } = new JsonSerializerOptions
{
	DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault,    // ignore-all-default-value-properties
	PropertyNamingPolicy = JsonNamingPolicy.CamelCase,                  // support camel case
	Converters =
	{
		new JsonStringEnumConverter()
	}
};

Json.NET / Newtonsoft Framework

Was integrated into ASP.NET even though it was 3rd party, I think its called Middleware. This lib is pretty much the de facto standard for JSON Serialization (Probably won awards, free beer & stuff!)

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public string ToJson(object obj)
{
	return JsonConvert.SerializeObject(obj);
}

System.Runtime.Serialization.Json

Class: DataContractJsonSerializer

An older, Microsoft-developed serializer that was integrated in previous ASP.NET versions until Newtonsoft.Json replaced it. Needs more code and sucks, don’t use it :D

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public string ToJson<T>(object obj)
{
    var json = "[]";
    var dataContractJsonSerializer = new DataContractJsonSerializer(typeof(T));
    using (var memoryStream = new MemoryStream())
    {
        dataContractJsonSerializer.WriteObject(memoryStream, obj);
        memoryStream.Position = 0;
        using (var streamReader = new StreamReader(memoryStream))
        {
            json = streamReader.ReadToEnd();
            streamReader.Close();
        }
        memoryStream.Close();
    }
    return json;
}

--- CALL IT
var obj = new FizzbuzzEventBody() {
   buzz_at = BuzzAt,
   fizz_at = FizzAt,
   lower_bound = LowerBound,
   upper_bound = UpperBound
};
var json = ToJson<FizzbuzzEventBody>(obj);

System.Web.Script.Serialization

I remember using this ages ago in Web Forms and AjaxServer.asmx.cs files - I stopped using it after somebody showed me Json.NET

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var list = new List<string>();
list.Add("some string value");

// slower built in 'JavaScriptSerializer'
var json = new JavaScriptSerializer().Serialize(list);
return json;

References