Newtonsoft to Text.Json, i miss some attributes

[zms9110750]

According to the AI's instructions, I added Newtonsoft.Json attributes to my entity. I tried to find the corresponding System.Text.Json attributes but couldn't find them.

I encountered two issues:

• This is a record, and Newtonsoft.Json requires me to specify a constructor.
• I implemented an iterable type. Newtonsoft.Json requires me to indicate that it is a regular class and not a collection.

[JsonObject]
[method: System.Text.Json.Serialization.JsonConstructor]
[method: Newtonsoft.Json.JsonConstructor]
public record ItemI18n(
	[property: JsonPropertyName("en"), JsonProperty("en")] Language En,
	[property: JsonPropertyName("ko"), JsonProperty("ko")] Language? Ko = null,
	[property: JsonPropertyName("ru"), JsonProperty("ru")] Language? Ru = null,
	[property: JsonPropertyName("de"), JsonProperty("de")] Language? De = null,
	[property: JsonPropertyName("fr"), JsonProperty("fr")] Language? Fr = null,
	[property: JsonPropertyName("pt"), JsonProperty("pt")] Language? Pt = null,
	[property: JsonPropertyName("es"), JsonProperty("es")] Language? Es = null,
	[property: JsonPropertyName("it"), JsonProperty("it")] Language? It = null,
	[property: JsonPropertyName("pl"), JsonProperty("pl")] Language? Pl = null,
	[property: JsonPropertyName("uk"), JsonProperty("uk")] Language? Uk = null,
	[property: JsonPropertyName("zh-hans"), JsonProperty("zh-hans")] Language? ZhHans = null,
	[property: JsonPropertyName("zh-hant"), JsonProperty("zh-hant")] Language? ZhHant = null
	) : IEnumerable<KeyValuePair<string, Language>>, ITuple

[zms9110750]

var p2 = """
	{
	"id": "54aae292e7798909064f1575",
	"slug": "secura_dual_cestra",
	"gameRef": "/Lotus/Weapons/Syndicates/PerrinSequence/Pistols/PSDualCestra",
	"tags": [ "syndicate", "weapon", "secondary" ],
	"i18n": {
		"en": {
			"name": "Secura Dual Cestra",
			"icon": "items/images/en/secura_dual_cestra.3d47a4ec6675ff774bb0da9b16c53e0e.png",
			"thumb": "items/images/en/thumbs/secura_dual_cestra.3d47a4ec6675ff774bb0da9b16c53e0e.128x128.png"
		}
	}
}
""";
var a2 = JObject.Parse(p2).ToObject<ItemShort>();

try
{
	var b2 = JsonSerializer.Deserialize<ItemShort>(p2);
}
catch (System.Text.Json.JsonException eion)
{
	Console.WriteLine(eion.Path);
	Console.WriteLine(eion.Message);
}

ItemShort

public partial record ItemShort(
	[property: JsonPropertyName("id"), JsonProperty("id")] string Id,
	[property: JsonPropertyName("slug"), JsonProperty("slug")] string Slug,
	[property: JsonPropertyName("gameRef"), JsonProperty("gameRef")] string GameRef,
	[property: JsonPropertyName("tags"), JsonProperty("tags")] HashSet<string> Tags,
	[property: JsonPropertyName("maxRank"), JsonProperty("maxRank")] int? MaxRank,
	[property: JsonPropertyName("vaulted"), JsonProperty("vaulted")] bool? Vaulted,
	[property: JsonPropertyName("ducats"), JsonProperty("ducats")] int? Ducats,
	[property: JsonPropertyName("maxAmberStars"), JsonProperty("maxAmberStars")] int? MaxAmberStars,
	[property: JsonPropertyName("maxCyanStars"), JsonProperty("maxCyanStars")] int? MaxCyanStars,
	[property: JsonPropertyName("baseEndo"), JsonProperty("baseEndo")] int? BaseEndo,
	[property: JsonPropertyName("endoMultiplier"), JsonProperty("endoMultiplier")] float? EndoMultiplier,
	[property: JsonPropertyName("subtypes"), JsonProperty("subtypes")] HashSet<Subtypes>? Subtypes)

Language

public record Language(
	[property: JsonPropertyName("name"), JsonProperty("name")] string Name,
	[property: JsonPropertyName("icon"), JsonProperty("icon")] string Icon,
	[property: JsonPropertyName("thumb"), JsonProperty("thumb")] string Thumb,
	[property: JsonPropertyName("description"), JsonProperty("description")] string? Description = null,
	[property: JsonPropertyName("wikiLink"), JsonProperty("wikiLink")] string? WikiLink = null,
	[property: JsonPropertyName("subIcon"), JsonProperty("subIcon")] string? SubIcon = null);

ItemI18n

[JsonObject]
[method: System.Text.Json.Serialization.JsonConstructor]
[method: Newtonsoft.Json.JsonConstructor]
public record ItemI18n(
	[property: JsonPropertyName("en"), JsonProperty("en")] Language En,
	[property: JsonPropertyName("ko"), JsonProperty("ko")] Language? Ko = null,
	[property: JsonPropertyName("ru"), JsonProperty("ru")] Language? Ru = null,
	[property: JsonPropertyName("de"), JsonProperty("de")] Language? De = null,
	[property: JsonPropertyName("fr"), JsonProperty("fr")] Language? Fr = null,
	[property: JsonPropertyName("pt"), JsonProperty("pt")] Language? Pt = null,
	[property: JsonPropertyName("es"), JsonProperty("es")] Language? Es = null,
	[property: JsonPropertyName("it"), JsonProperty("it")] Language? It = null,
	[property: JsonPropertyName("pl"), JsonProperty("pl")] Language? Pl = null,
	[property: JsonPropertyName("uk"), JsonProperty("uk")] Language? Uk = null,
	[property: JsonPropertyName("zh-hans"), JsonProperty("zh-hans")] Language? ZhHans = null,
	[property: JsonPropertyName("zh-hant"), JsonProperty("zh-hant")] Language? ZhHant = null
	) : IEnumerable<KeyValuePair<string, Language>>, ITuple
{
	public ItemI18n(IReadOnlyDictionary<string, Language> pairs)
	   : this(pairs[LanguageCode[0]],
			 pairs.GetValueOrDefault(LanguageCode[1]),
			 pairs.GetValueOrDefault(LanguageCode[2]),
			 pairs.GetValueOrDefault(LanguageCode[3]),
			 pairs.GetValueOrDefault(LanguageCode[4]),
			 pairs.GetValueOrDefault(LanguageCode[5]),
			 pairs.GetValueOrDefault(LanguageCode[6]),
			 pairs.GetValueOrDefault(LanguageCode[7]),
			 pairs.GetValueOrDefault(LanguageCode[8]),
			 pairs.GetValueOrDefault(LanguageCode[9]),
			 pairs.GetValueOrDefault(LanguageCode[10]),
			 pairs.GetValueOrDefault(LanguageCode[11]))
	{ }

	int ITuple.Length => 12;

	object? ITuple.this[int index] => index switch
	{
		0 => En,
		1 => Ko,
		2 => Ru,
		3 => De,
		4 => Fr,
		5 => Pt,
		6 => Es,
		7 => It,
		8 => Pl,
		9 => Uk,
		10 => ZhHans,
		11 => ZhHant,
		_ => new ArgumentOutOfRangeException(nameof(index), "must in [0 .. 11]")
	};
	static string[] LanguageCode { get; } = ["En", "Ko", "Ru", "De", "Fr", "Pt", "Es", "It", "Pl", "Uk", "ZhHans", "ZhHant",];
	public IEnumerator<KeyValuePair<string, Language>> GetEnumerator()
	{
		ITuple tuple = this;
		for (int i = 0; i < tuple.Length; i++)
		{
			if (tuple[i] is Language language)
			{
				yield return new KeyValuePair<string, Language>(LanguageCode[i], language);
			}
		}
	}

	IEnumerator IEnumerable.GetEnumerator()
	{
		return GetEnumerator();
	}
}

[elgonzo]

This is an open issue that is being tracked here: #63791 Upvote it so the team can gauge the interest in / relevance of this feature.