diff --git a/modules/openapi-generator/src/main/resources/nodejs-express-server/service.mustache b/modules/openapi-generator/src/main/resources/nodejs-express-server/service.mustache
index 3074552c5633..bf3d98813f1b 100644
--- a/modules/openapi-generator/src/main/resources/nodejs-express-server/service.mustache
+++ b/modules/openapi-generator/src/main/resources/nodejs-express-server/service.mustache
@@ -12,23 +12,40 @@ const Service = require('./Service');
 {{/notes}}
 *
 {{#allParams}}
-* {{paramName}} {{{dataType}}} {{{description}}}{{^required}} (optional){{/required}}
+* @param {{^required}}[{{/required}}{{paramName}}{{^required}}]{{/required}} { {{{dataType}}} } {{{description}}}
 {{/allParams}}
 {{^returnType}}
 * no response value expected for this operation
 {{/returnType}}
 {{#returnType}}
-* returns {{{.}}}
+* @returns { {{{.}}} }
 {{/returnType}}
 * */
 const {{{operationId}}} = ({{#allParams}}{{#-first}}{ {{/-first}}{{paramName}}{{^-last}}, {{/-last}}{{#-last}} }{{/-last}}{{/allParams}}) => new Promise(
-  async (resolve, reject) => {
+  (resolve, reject) => {
     try {
+      {{#returnType}}
+      var examples = {};
+      {{#examples}}
+      examples['{{contentType}}'] = {{{example}}};
+      {{/examples}}
+      if (Object.keys(examples).length > 0) {
+        resolve(Service.successResponse(examples[Object.keys(examples)[0]]));
+      } else {
+        resolve(Service.successResponse({
+        {{#allParams}}
+          {{paramName}},
+        {{/allParams}}
+        }));
+      }
+      {{/returnType}}
+      {{^returnType}}
       resolve(Service.successResponse({
-    {{#allParams}}
+      {{#allParams}}
         {{paramName}},
-    {{/allParams}}
+      {{/allParams}}
       }));
+      {{/returnType}}
     } catch (e) {
       reject(Service.rejectResponse(
         e.message || 'Invalid input',