回答編集履歴
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見直しキャンペーン中
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解決されたようですが気になったので調査しました。
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`JsonConverter`を書けば何とかなりました。動いてはいますが正しいかはわかりません^^;
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```cs
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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using System;
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using System.Linq;
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namespace Questions315978
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{
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class Program
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{
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static void Main()
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{
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var errorJson = @"
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[
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{
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""error_code"": ""E01"",
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""error_information"": ""hogehoge""
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},
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{
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""error_code"": ""E02"",
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""error_information"": ""mogemoge""
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}
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]".Trim();
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//var r0 = JsonConvert.DeserializeObject<Response.Error[]>(errorJson);
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var r1 = JsonConvert.DeserializeObject<HogeApiResponse>(errorJson);
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var successJson = @"
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{
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""token"": ""abcdefghijklmnopqrstuvwxyz""
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}".Trim();
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var r2 = JsonConvert.DeserializeObject<HogeApiResponse>(successJson);
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}
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}
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public class ResponseJsonConverter : JsonConverter
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{
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public override bool CanConvert(Type objectType)
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=> typeof(Response).IsAssignableFrom(objectType);
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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if (reader.TokenType == JsonToken.StartArray)
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{
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var jArray = JArray.Load(reader);
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var target = (Response)Activator.CreateInstance(objectType);
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target.Errors = jArray.Select(x => JsonConvert.DeserializeObject<Response.Error>(x.ToString())).ToArray();
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return target;
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}
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else
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{
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var jObject = JObject.Load(reader);
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var target = Activator.CreateInstance(objectType);
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serializer.Populate(jObject.CreateReader(), target);
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return target;
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}
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}
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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=> throw new NotImplementedException();
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}
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[JsonConverter(typeof(ResponseJsonConverter))]
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public abstract class Response
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{
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public Error[] Errors { get; set; }
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public class Error
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{
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[JsonProperty("error_code")]
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public string ErrorCode { get; set; }
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[JsonProperty("error_information")]
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public string ErrorInformation { get; set; }
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}
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}
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public class HogeApiResponse : Response
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{
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[JsonProperty("token")]
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public string Token { get; set; }
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}
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}
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```
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---
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ついでに`System.Text.Json`版もやってみたのですが、さらに自信ありません^^;
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```cs
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using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace Questions315978
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{
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class Program
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{
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static void Main()
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{
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var errorJson = @"
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[
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{
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""error_code"": ""E01"",
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""error_information"": ""hogehoge""
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},
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{
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""error_code"": ""E02"",
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""error_information"": ""mogemoge""
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}
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]".Trim();
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var options = new JsonSerializerOptions();
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options.Converters.Add(new ResponseJsonConverter());
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//var r0 = JsonSerializer.Deserialize<Response.Error[]>(errorJson);
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var r1 = JsonSerializer.Deserialize<HogeApiResponse>(errorJson, options);
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var successJson = @"
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{
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""token"": ""abcdefghijklmnopqrstuvwxyz""
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}".Trim();
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var r2 = Json
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var r2 = JsonSerializer.Deserialize<HogeApiResponse>(successJson, options);
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}
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}
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public class ResponseJsonConverter : JsonConverter<Response>
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{
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public override bool CanConvert(Type typeToConvert)
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=> typeof(Response).IsAssignableFrom(typeToConvert);
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public class ResponseJsonConverter : JsonConverter
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{
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public override bool CanConvert(Type objectType)
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=> typeof(Response).IsAssignableFrom(objectType);
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public override o
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public override Response Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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if (reader.TokenType == JsonToken.StartArray)
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if (reader.TokenType == JsonTokenType.StartArray)
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var jArray = JArray.Load(reader);
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var target = (Response)Activator.CreateInstance(
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var target = (Response)Activator.CreateInstance(typeToConvert);
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target.Errors =
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target.Errors = JsonSerializer.Deserialize<Response.Error[]>(ref reader);
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return target;
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}
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else
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{
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var jObject = JObject.Load(reader);
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// options渡すと当然StackOverflowException
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serializer.
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return (Response)JsonSerializer.Deserialize(ref reader, typeToConvert);
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return target;
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}
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}
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public override void Write
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public override void Write(Utf8JsonWriter writer, Response value, JsonSerializerOptions options)
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=> throw new NotImplementedException();
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}
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// こうも書けるのだが派生に引き継がれないっぽいのと、
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// 優先度が高すぎてStackOverflowExceptionを抑えられない^^;
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[JsonConverter(typeof(ResponseJsonConverter))]
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//[JsonConverter(typeof(ResponseJsonConverter))] // ダメ！
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public abstract class Response
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public Error[] Errors { get; set; }
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public class Error
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[JsonProperty("error_code")]
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[JsonPropertyName("error_code")]
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public string ErrorCode { get; set; }
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[JsonProperty("error_information")]
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[JsonPropertyName("error_information")]
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public string ErrorInformation { get; set; }
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}
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}
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//[JsonConverter(typeof(ResponseJsonConverter))] // ダメ！
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public class HogeApiResponse : Response
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[JsonProperty("token")]
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[JsonPropertyName("token")]
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public string Token { get; set; }
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}
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}
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```
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---
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ついでに`System.Text.Json`版もやってみたのですが、さらに自信ありません^^;
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```C#
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using System;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace Questions315978
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{
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class Program
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{
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static void Main()
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{
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var errorJson = @"
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""error_code"": ""E01"",
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""error_information"": ""hogehoge""
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},
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""error_code"": ""E02"",
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""error_information"": ""mogemoge""
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}
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]".Trim();
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var options = new JsonSerializerOptions();
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options.Converters.Add(new ResponseJsonConverter());
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//var r0 = JsonSerializer.Deserialize<Response.Error[]>(errorJson);
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var r1 = JsonSerializer.Deserialize<HogeApiResponse>(errorJson, options);
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var successJson = @"
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{
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""token"": ""abcdefghijklmnopqrstuvwxyz""
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}".Trim();
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var r2 = JsonSerializer.Deserialize<HogeApiResponse>(successJson, options);
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}
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}
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public class ResponseJsonConverter : JsonConverter<Response>
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{
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public override bool CanConvert(Type typeToConvert)
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=> typeof(Response).IsAssignableFrom(typeToConvert);
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public override Response Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
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{
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if (reader.TokenType == JsonTokenType.StartArray)
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{
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var target = (Response)Activator.CreateInstance(typeToConvert);
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target.Errors = JsonSerializer.Deserialize<Response.Error[]>(ref reader);
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return target;
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}
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else
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{
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// options渡すと当然StackOverflowException
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return (Response)JsonSerializer.Deserialize(ref reader, typeToConvert);
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}
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}
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public override void Write(Utf8JsonWriter writer, Response value, JsonSerializerOptions options)
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=> throw new NotImplementedException();
|
|
296
|
-
|
|
297
|
-
}
|
|
298
|
-
|
|
299
|
-
|
|
300
|
-
|
|
301
|
-
// こうも書けるのだが派生に引き継がれないっぽいのと、
|
|
302
|
-
|
|
303
|
-
// 優先度が高すぎてStackOverflowExceptionを抑えられない^^;
|
|
304
|
-
|
|
305
|
-
//[JsonConverter(typeof(ResponseJsonConverter))] // ダメ！
|
|
306
|
-
|
|
307
|
-
public abstract class Response
|
|
308
|
-
|
|
309
|
-
{
|
|
310
|
-
|
|
311
|
-
public Error[] Errors { get; set; }
|
|
312
|
-
|
|
313
|
-
|
|
314
|
-
|
|
315
|
-
public class Error
|
|
316
|
-
|
|
317
|
-
{
|
|
318
|
-
|
|
319
|
-
[JsonPropertyName("error_code")]
|
|
320
|
-
|
|
321
|
-
public string ErrorCode { get; set; }
|
|
322
|
-
|
|
323
|
-
|
|
324
|
-
|
|
325
|
-
[JsonPropertyName("error_information")]
|
|
326
|
-
|
|
327
|
-
public string ErrorInformation { get; set; }
|
|
328
|
-
|
|
329
|
-
}
|
|
330
|
-
|
|
331
|
-
}
|
|
332
|
-
|
|
333
|
-
|
|
334
|
-
|
|
335
|
-
//[JsonConverter(typeof(ResponseJsonConverter))] // ダメ！
|
|
336
|
-
|
|
337
|
-
public class HogeApiResponse : Response
|
|
338
|
-
|
|
339
|
-
{
|
|
340
|
-
|
|
341
|
-
[JsonPropertyName("token")]
|
|
342
|
-
|
|
343
|
-
public string Token { get; set; }
|
|
344
|
-
|
|
345
|
-
}
|
|
346
|
-
|
|
347
|
-
}
|
|
348
|
-
|
|
349
|
-
```
|
1
internal
test
CHANGED
|
@@ -194,11 +194,11 @@
|
|
|
194
194
|
|
|
195
195
|
{
|
|
196
196
|
|
|
197
|
-
|
|
197
|
+
class Program
|
|
198
|
-
|
|
198
|
+
|
|
199
|
-
{
|
|
199
|
+
{
|
|
200
|
-
|
|
200
|
+
|
|
201
|
-
|
|
201
|
+
static void Main()
|
|
202
202
|
|
|
203
203
|
{
|
|
204
204
|
|