Use ValueConverter method for enums to output in the correct JSON format

alec-petersen · alec-petersen · commit 643fa89292b3 · 2025-08-05T10:07:38.000-06:00
diff --git a/modules/openapi-generator/src/main/resources/csharp/modelEnum.mustache b/modules/openapi-generator/src/main/resources/csharp/modelEnum.mustache
@@ -141,7 +141,7 @@
         /// <param name="options"></param>
         public override void Write(Utf8JsonWriter writer, {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}} {{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}, JsonSerializerOptions options)
         {
-            writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.ToString());
+            writer.WriteStringValue({{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}));
         }
     }
 
@@ -179,7 +179,7 @@
         /// <param name="options"></param>
         public override void Write(Utf8JsonWriter writer, {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}? {{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}, JsonSerializerOptions options)
         {
-            writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}?.ToString() ?? "null");
+            writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.HasValue ? {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.Value) : "null");
         }
     }
     {{/useGenericHost}}

Original file line number	Diff line number	Diff line change
`@@ -141,7 +141,7 @@`
`141`	`141`	`/// <param name="options"></param>`
`142`	`142`	`public override void Write(Utf8JsonWriter writer, {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}} {{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}, JsonSerializerOptions options)`
`143`	`143`	`{`
`144`		`- writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.ToString());`
	`144`	`+ writer.WriteStringValue({{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}));`
`145`	`145`	`}`
`146`	`146`	`}`
`147`	`147`
`@@ -179,7 +179,7 @@`
`179`	`179`	`/// <param name="options"></param>`
`180`	`180`	`public override void Write(Utf8JsonWriter writer, {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}? {{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}, JsonSerializerOptions options)`
`181`	`181`	`{`
`182`		`- writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}?.ToString() ?? "null");`
	`182`	`+ writer.WriteStringValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.HasValue ? {{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}ValueConverter.ToJsonValue({{#lambda.camelcase_sanitize_param}}{{datatypeWithEnum}}{{^datatypeWithEnum}}{{classname}}{{/datatypeWithEnum}}{{/lambda.camelcase_sanitize_param}}.Value) : "null");`
`183`	`183`	`}`
`184`	`184`	`}`
`185`	`185`	`{{/useGenericHost}}`