added json converters for TimeSpan

Author: devhl-labs

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java

@@ -1095,6 +1095,8 @@ public void addGenericHostSupportingFiles(final String clientPackageDir, final S
         supportingFiles.add(new SupportingFile("ApiFactory.mustache", clientPackageDir, "ApiFactory.cs"));
         supportingFiles.add(new SupportingFile("DateTimeJsonConverter.mustache", clientPackageDir, "DateTimeJsonConverter.cs"));
         supportingFiles.add(new SupportingFile("DateTimeNullableJsonConverter.mustache", clientPackageDir, "DateTimeNullableJsonConverter.cs"));
+        supportingFiles.add(new SupportingFile("TimeSpanJsonConverter.mustache", clientPackageDir, "TimeSpanJsonConverter.cs"));
+        supportingFiles.add(new SupportingFile("TimeSpanNullableJsonConverter.mustache", clientPackageDir, "TimeSpanNullableJsonConverter.cs"));
         if (useDateOnly()) {
             supportingFiles.add(new SupportingFile("DateOnlyJsonConverter.mustache", clientPackageDir, "DateOnlyJsonConverter.cs"));
             supportingFiles.add(new SupportingFile("DateOnlyNullableJsonConverter.mustache", clientPackageDir, "DateOnlyNullableJsonConverter.cs"));

modules/openapi-generator/src/main/resources/csharp/libraries/generichost/HostConfiguration.mustache

@@ -43,6 +43,8 @@ namespace {{packageName}}.{{clientPackage}}
             _jsonOptions.Converters.Add(new DateOnlyJsonConverter());
             _jsonOptions.Converters.Add(new DateOnlyNullableJsonConverter());
             {{/supportsDateOnly}}
+            _jsonOptions.Converters.Add(new TimeSpanJsonConverter());
+            _jsonOptions.Converters.Add(new TimeSpanNullableJsonConverter());
             {{#models}}
             {{#model}}
             {{#isEnum}}

modules/openapi-generator/src/main/resources/csharp/libraries/generichost/TimeSpanJsonConverter.mustache

@@ -0,0 +1,41 @@
+{{>partial_header}}
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using System.Xml;
+
+namespace {{packageName}}.{{clientPackage}}
+{
+    /// <summary>
+    /// Formatter for 'duration' openapi format as defined by ISO8601
+    /// see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#data-types
+    /// </summary>
+    {{>visibility}} class TimeSpanJsonConverter : JsonConverter<TimeSpan>
+    {
+        /// <summary>
+        /// Returns a TimeSpan from the Json object
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public override TimeSpan Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (reader.TokenType == JsonTokenType.Null)
+                throw new NotSupportedException();
+
+            string value = reader.GetString(){{nrt!}};
+            return XmlConvert.ToTimeSpan(value);
+        }
+
+        /// <summary>
+        /// Writes the TimeSpan to the json writer in ISO 8601 duration format
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="timeSpanValue"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, TimeSpan timeSpanValue, JsonSerializerOptions options) => writer.WriteStringValue(XmlConvert.ToString(timeSpanValue));
+    }
+}
+
+

modules/openapi-generator/src/main/resources/csharp/libraries/generichost/TimeSpanNullableJsonConverter.mustache

@@ -0,0 +1,45 @@
+{{>partial_header}}
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using System.Xml;
+
+namespace {{packageName}}.{{clientPackage}}
+{
+    /// <summary>
+    /// Formatter for 'duration' openapi format as defined by ISO8601
+    /// see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#data-types
+    /// </summary>
+    {{>visibility}} class TimeSpanNullableJsonConverter : JsonConverter<TimeSpan?>
+    {
+        /// <summary>
+        /// Returns a TimeSpan from the Json object
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="typeToConvert"></param>
+        /// <param name="options"></param>
+        /// <returns></returns>
+        public override TimeSpan? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+        {
+            if (reader.TokenType == JsonTokenType.Null)
+                return null;
+
+            string value = reader.GetString(){{nrt!}};
+            return XmlConvert.ToTimeSpan(value);
+        }
+
+        /// <summary>
+        /// Writes the TimeSpan to the json writer in ISO 8601 duration format
+        /// </summary>
+        /// <param name="writer"></param>
+        /// <param name="timeSpanValue"></param>
+        /// <param name="options"></param>
+        public override void Write(Utf8JsonWriter writer, TimeSpan? timeSpanValue, JsonSerializerOptions options)
+        {
+            if (timeSpanValue == null)
+                writer.WriteNullValue();
+            else
+                writer.WriteStringValue(XmlConvert.ToString(timeSpanValue.Value));
+        }
+    }
+}