diff --git a/example/js/exampleApiServer.js b/example/js/exampleApiServer.js
index aa9a74e..db4bff9 100644
--- a/example/js/exampleApiServer.js
+++ b/example/js/exampleApiServer.js
@@ -31,10 +31,11 @@ function parseBoolean(value) {
   return undefined;
 }
 
-export function createApp(service) {
+export function createApp(service, middleware) {
   const app = express();
   app.use(bodyParser.json());
   app.use(bodyParser.urlencoded({ extended: true }));
+  middleware.forEach(func => app.use(func));
 
   /** Gets widgets. */
   app.get('/widgets', function (req, res, next) {
diff --git a/example/ts/src/exampleApiServer.ts b/example/ts/src/exampleApiServer.ts
index e9ba19d..912e2e5 100644
--- a/example/ts/src/exampleApiServer.ts
+++ b/example/ts/src/exampleApiServer.ts
@@ -32,10 +32,11 @@ function parseBoolean(value: string | undefined) {
 	return undefined;
 }
 
-export function createApp(service: IExampleApi): express.Application {
+export function createApp(service: IExampleApi, middleware: ((...args: any[]) => void)[]): express.Application {
 	const app = express();
 	app.use(bodyParser.json());
 	app.use(bodyParser.urlencoded({ extended: true }));
+	middleware.forEach(func => app.use(func));
 
 	/** Gets widgets. */
 	app.get('/widgets', function (req, res, next) {
diff --git a/src/Facility.CodeGen.JavaScript/JavaScriptGenerator.cs b/src/Facility.CodeGen.JavaScript/JavaScriptGenerator.cs
index a2f2d04..65ada04 100644
--- a/src/Facility.CodeGen.JavaScript/JavaScriptGenerator.cs
+++ b/src/Facility.CodeGen.JavaScript/JavaScriptGenerator.cs
@@ -338,11 +338,12 @@ protected override CodeGenOutput GenerateOutputCore(ServiceInfo service)
 					}
 
 					code.WriteLine();
-					using (code.Block("export function createApp(service" + IfTypeScript($": I{capModuleName}") + ")" + IfTypeScript(": express.Application") + " {", "}"))
+					using (code.Block("export function createApp(service" + IfTypeScript($": I{capModuleName}") + ", middleware" + IfTypeScript(": ((...args: any[]) => void)[]") + ")" + IfTypeScript(": express.Application") + " {", "}"))
 					{
 						code.WriteLine("const app = express();");
 						code.WriteLine("app.use(bodyParser.json());");
 						code.WriteLine("app.use(bodyParser.urlencoded({ extended: true }));");
+						code.WriteLine("middleware.forEach(func => app.use(func));");
 
 						foreach (var httpMethodInfo in httpServiceInfo.Methods)
 						{