source: binary-improvements/MapRendering/API/GetServerInfo.cs

using System;
using JetBrains.Annotations;
using Utf8Json;
using Webserver;
using Webserver.WebAPI;

namespace AllocsFixes.WebAPIs {
        [UsedImplicitly]
        public class GetServerInfo : AbsWebAPI {
                private static readonly byte[] jsonKeyType = JsonWriter.GetEncodedPropertyNameWithBeginObject ("type");
                private static readonly byte[] jsonKeyValue = JsonWriter.GetEncodedPropertyNameWithPrefixValueSeparator ("value");

                public override void HandleRequest (RequestContext _context) {
                        GameServerInfo gsi = ConnectionManager.Instance.LocalServerInfo;

                        JsonWriter writer = new JsonWriter ();
                        writer.WriteBeginObject ();

                        bool first = true;

                        foreach (string stringGamePref in Enum.GetNames (typeof (GameInfoString))) {
                                string value = gsi.GetValue ((GameInfoString) Enum.Parse (typeof (GameInfoString), stringGamePref));
                                
                                if (!first) {
                                        writer.WriteValueSeparator ();
                                }

                                first = false;

                                writer.WritePropertyName (stringGamePref);
                                writer.WriteRaw (jsonKeyType);
                                writer.WriteString ("string");
                                
                                writer.WriteRaw (jsonKeyValue);
                                writer.WriteString (value);
                                
                                writer.WriteEndObject ();
                        }

                        foreach (string intGamePref in Enum.GetNames (typeof (GameInfoInt))) {
                                int value = gsi.GetValue ((GameInfoInt) Enum.Parse (typeof (GameInfoInt), intGamePref));

                                if (!first) {
                                        writer.WriteValueSeparator ();
                                }

                                first = false;

                                writer.WritePropertyName (intGamePref);
                                writer.WriteRaw (jsonKeyType);
                                writer.WriteString ("int");
                                
                                writer.WriteRaw (jsonKeyValue);
                                writer.WriteInt32 (value);
                                
                                writer.WriteEndObject ();
                        }

                        foreach (string boolGamePref in Enum.GetNames (typeof (GameInfoBool))) {
                                bool value = gsi.GetValue ((GameInfoBool) Enum.Parse (typeof (GameInfoBool), boolGamePref));

                                if (!first) {
                                        writer.WriteValueSeparator ();
                                }

                                first = false;

                                writer.WritePropertyName (boolGamePref);
                                writer.WriteRaw (jsonKeyType);
                                writer.WriteString ("bool");
                                
                                writer.WriteRaw (jsonKeyValue);
                                writer.WriteBoolean (value);
                                
                                writer.WriteEndObject ();
                        }
                        
                        writer.WriteEndObject ();
                        
                        WebUtils.WriteJsonData (_context.Response, ref writer);
                }
        }
}