Added missing copied properties from CodegenOperation in TypeScriptFetchClientCodegen and ErlangClientCodegen to resolve issue #15457 (#17627)

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

@@ -347,7 +347,7 @@ public class CodegenOperation {
         sb.append(", isVoid=").append(isVoid);
         sb.append(", isResponseBinary=").append(isResponseBinary);
         sb.append(", isResponseFile=").append(isResponseFile);
-        sb.append(", isResponseFile=").append(isResponseOptional);
+        sb.append(", isResponseOptional=").append(isResponseOptional);
         sb.append(", hasReference=").append(hasReference);
         sb.append(", hasDefaultResponse=").append(hasDefaultResponse);
         sb.append(", hasErrorResponseObject=").append(hasErrorResponseObject);

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

@@ -419,6 +419,8 @@ public class ErlangClientCodegen extends DefaultCodegen implements CodegenConfig
             this.isArray = o.isArray;
             this.isMultipart = o.isMultipart;
             this.isResponseBinary = o.isResponseBinary;
+            this.isResponseFile = o.isResponseFile;
+            this.isResponseOptional = o.isResponseOptional;
             this.hasReference = o.hasReference;
             this.isRestfulIndex = o.isRestfulIndex;
             this.isRestfulShow = o.isRestfulShow;

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

@@ -1303,6 +1303,7 @@ public class TypeScriptFetchClientCodegen extends AbstractTypeScriptClientCodege
             this.isMultipart = o.isMultipart;
             this.isResponseBinary = o.isResponseBinary;
             this.isResponseFile = o.isResponseFile;
+            this.isResponseOptional = o.isResponseOptional;
             this.hasReference = o.hasReference;
             this.isRestfulIndex = o.isRestfulIndex;
             this.isRestfulShow = o.isRestfulShow;

modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultCodegenTest.java

@@ -74,6 +74,16 @@ public class DefaultCodegenTest {
         Assert.assertEquals(Sets.intersection(operation.imports, Sets.newHashSet("Person")).size(), 1);
     }
 
+    @Test
+    public void testOptionalResponseImports() {
+        final DefaultCodegen codegen = new DefaultCodegen();
+        final OpenAPI openApi = TestUtils.parseFlattenSpec("src/test/resources/3_0/optionalResponse.yaml");
+        codegen.setOpenAPI(openApi);
+        PathItem path = openApi.getPaths().get("/api/Users/{userId}");
+        CodegenOperation operation = codegen.fromOperation("/api/Users/{userId}", "get", path.getGet(), path.getServers());
+        Assert.assertEquals(operation.isResponseOptional, true);
+    }
+
     @Test
     public void testEnumImports() {
         final DefaultCodegen codegen = new DefaultCodegen();

modules/openapi-generator/src/test/java/org/openapitools/codegen/typescript/fetch/TypeScriptFetchClientCodegenTest.java

@@ -1,11 +1,13 @@
 package org.openapitools.codegen.typescript.fetch;
 
 import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.PathItem;
 import io.swagger.v3.oas.models.media.ArraySchema;
 import io.swagger.v3.oas.models.media.MapSchema;
 import io.swagger.v3.oas.models.media.Schema;
 import io.swagger.v3.oas.models.media.StringSchema;
 import org.openapitools.codegen.CodegenConstants;
+import org.openapitools.codegen.CodegenOperation;
 import org.openapitools.codegen.SupportingFile;
 import org.openapitools.codegen.TestUtils;
 import org.openapitools.codegen.languages.AbstractTypeScriptClientCodegen;
@@ -43,6 +45,16 @@ public class TypeScriptFetchClientCodegenTest {
 
     }
 
+    @Test
+    public void testOptionalResponseImports() {
+        TypeScriptFetchClientCodegen codegen = new TypeScriptFetchClientCodegen();
+        final OpenAPI openApi = TestUtils.parseFlattenSpec("src/test/resources/3_0/optionalResponse.yaml");
+        codegen.setOpenAPI(openApi);
+        PathItem path = openApi.getPaths().get("/api/Users/{userId}");
+        CodegenOperation operation = codegen.fromOperation("/api/Users/{userId}", "get", path.getGet(), path.getServers());
+        Assert.assertEquals(operation.isResponseOptional, true);
+    }
+
     @Test
     public void testWithoutSnapshotVersion() {
         OpenAPI api = TestUtils.createOpenAPI();

modules/openapi-generator/src/test/resources/3_0/optionalResponse.yaml

@@ -0,0 +1,48 @@
+openapi: 3.0.1
+info:
+  title: My Sample User API
+  version: '1.0'
+paths:
+  /api/Users/{userId}:
+    get:
+      tags:
+        - Users
+      summary: Get a specific user
+      operationId: GetUserById
+      parameters:
+        - name: userId
+          in: path
+          description: ID of the user
+          required: true
+          schema:
+            type: string
+            format: uuid
+      responses:
+        '200':
+          description: Success
+          content:
+            text/plain:
+              schema:
+                $ref: '#/components/schemas/UserDto'
+            application/json:
+              schema:
+                $ref: '#/components/schemas/UserDto'
+            text/json:
+              schema:
+                $ref: '#/components/schemas/UserDto'
+        '204':
+          description: No Content
+components:
+  schemas:
+    UserDto:
+      required:
+        - id
+      type: object
+      properties:
+        id:
+          type: string
+          format: uuid
+        name:
+          type: string
+          nullable: true
+      additionalProperties: false