using System;

using System.Text;

using System.Text.Json;

using System.Text.Json.Nodes;

using System.IO;

using System.Text.Encodings.Web;

using System.Text.Unicode;

public class Program

{

    public static void Main()

    {

        var e = JavaScriptEncoder.Create(UnicodeRanges.None);

        Console.OutputEncoding = Encoding.UTF8;

        var originalText = @"{""doggo"":""🐕""}";

        var node = JsonNode.Parse(originalText)!;

        using var stream = new MemoryStream();

        using var writer = new Utf8JsonWriter(stream, new JsonWriterOptions { Indented = false, SkipValidation = true, Encoder = e });

        node.WriteTo(writer);

        writer.Flush();

        stream.Position = 0;

        var data = stream.ToArray();

        var text = Encoding.UTF8.GetString(data);

        Console.WriteLine($"Original: {originalText}");

        Console.WriteLine($" Written: {text}");

    }

}