source: TFP-WebServer/WebServer/src/WebAPI/APIs/GameData/Item.cs@ 483

using JetBrains.Annotations;
using Utf8Json;
using Webserver.Permissions;

namespace Webserver.WebAPI.APIs.GameData {
        [UsedImplicitly]
        internal class Item : AbsRestApi {
                private static readonly byte[] jsonKeyName = JsonWriter.GetEncodedPropertyNameWithBeginObject ("name");
                private static readonly byte[] jsonKeyLocalizedName = JsonWriter.GetEncodedPropertyNameWithPrefixValueSeparator ("localizedName");
                private static readonly byte[] jsonKeyIsBlock = JsonWriter.GetEncodedPropertyNameWithPrefixValueSeparator ("isBlock");

                private readonly byte[] allItemsSerialized;

                public Item (Web _parent) {
                        JsonWriter writer = new JsonWriter ();
                        
                        writer.WriteBeginArray ();

                        int written = 0;
                        for (int i = 0; i < ItemClass.list.Length; i++) {
                                ItemClass item = ItemClass.list [i];
                                if (item == null) {
                                        continue;
                                }
                                
                                if (written > 0) {
                                        writer.WriteValueSeparator ();
                                }

                                written++;

                                string name = item.Name;
                                string localizedName = item.GetLocalizedItemName ();
                                bool isBlock = item.IsBlock ();
                                
                                writer.WriteRaw (jsonKeyName);
                                writer.WriteString (name);

                                writer.WriteRaw (jsonKeyLocalizedName);
                                writer.WriteString (localizedName);

                                writer.WriteRaw (jsonKeyIsBlock);
                                writer.WriteBoolean (isBlock);
                                
                                writer.WriteEndObject ();
                        }

                        writer.WriteEndArray ();

                        allItemsSerialized = writer.ToUtf8ByteArray ();
                }

                protected override void HandleRestGet (RequestContext _context) {
                        PrepareEnvelopedResult (out JsonWriter writer);
                        writer.WriteRaw (allItemsSerialized);
                        SendEnvelopedResult (_context, ref writer);
                }

                public override int DefaultPermissionLevel () => AdminWebModules.PermissionLevelGuest;
        }
}