draft for entrypoint

pkgs/dart_services/lib/server.dart

@@ -35,6 +35,14 @@ Future<void> main(List<String> args) async {
               'The name of the Cloud Storage bucket for compilation artifacts.',
           defaultsTo: 'nnbd_artifacts',
         )
+        ..addOption(
+          'genui-key',
+          valueHelp: 'key',
+          help:
+              'Genui key to be passed with request. '
+              'Is not needed for hosted one plat service, as it will use service account.',
+          defaultsTo: null,
+        )
         ..addFlag(
           'help',
           abbr: 'h',

pkgs/dart_services/lib/src/common_server.dart

@@ -15,6 +15,7 @@ import 'package:shelf_router/shelf_router.dart';
 import 'analysis.dart';
 import 'caching.dart';
 import 'compiling.dart';
+import 'flutter_genui.dart';
 import 'generative_ai.dart';
 import 'project_templates.dart';
 import 'pub.dart';
@@ -311,6 +312,7 @@ class CommonServerApi {
 
   @Route.post('$apiPrefix/generateCode')
   Future<Response> generateCode(Request request, String apiVersion) async {
+    print('!!!! generate code');
     if (apiVersion != api3) return unhandledVersion(apiVersion);
 
     final generateCodeRequest = api.GenerateCodeRequest.fromJson(
@@ -327,6 +329,19 @@ class CommonServerApi {
     );
   }
 
+  @Route.post('$apiPrefix/generateUi')
+  Future<Response> handleGenui(Request request, String apiVersion) async {
+    print('!!!! generate ui');
+    if (apiVersion != api3) return unhandledVersion(apiVersion);
+
+    await invokeFlutterGenUi();
+
+    return _streamResponse(
+      'generateUi',
+      Stream.fromIterable(['hello', ' from', ' genui']),
+    );
+  }
+
   @Route.post('$apiPrefix/updateCode')
   Future<Response> updateCode(Request request, String apiVersion) async {
     if (apiVersion != api3) return unhandledVersion(apiVersion);

pkgs/dart_services/lib/src/flutter_genui.dart

@@ -0,0 +1,29 @@
+import 'dart:convert';
+
+import 'package:http/http.dart' as http;
+
+Future<void> invokeFlutterGenUi() async {
+  print('Invoking flutter_gen_ui');
+
+  final response = await _requestGenui();
+  if (response.statusCode == 201) {
+    print('Success: ${response.body}');
+  } else {
+    print('Failed: ${response.statusCode}');
+  }
+}
+
+Future<http.Response> _requestGenui() {
+  return http.post(
+    Uri.parse(
+      'https://autopush-devgenui.sandbox.googleapis.com/v1beta1/firstparty/generateidecode\?key\=AIzaSyA5oU44eMuipFel1jxoYEh',
+    ),
+    headers: <String, String>{
+      'Content-Type': 'application/json; charset=UTF-8',
+    },
+    body: jsonEncode(<String, String>{
+      'userPrompt': 'hello, genui',
+      'modelUrl': 'genuigemini://models/gemini-2.0-flash',
+    }),
+  );
+}

pkgs/dart_services/lib/src/generative_ai.dart

@@ -17,7 +17,7 @@ final _logger = Logger('gen-ai');
 class GenerativeAI {
   static const _apiKeyVarName = 'PK_GEMINI_API_KEY';
   static const _geminiModel = 'gemini-2.0-flash';
-  late final String? _geminiApiKey;
+  String? _geminiApiKey;
 
   GenerativeAI() {
     final geminiApiKey = Platform.environment[_apiKeyVarName];
@@ -459,24 +459,24 @@ Make sure to take into account any attachments as part of the user's prompt.
 ''',
     AppType.dart: '''
 You're an expert Dart developer specializing in writing efficient, idiomatic,
-and production-ready Dart programs.  
+and production-ready Dart programs.
 You will produce professional, release-ready Dart applications. All of the
 instructions below are required to be rigorously followed.
 
 Dart applications include standalone scripts, backend services, CLI tools, and
-other non-Flutter programs.  
+other non-Flutter programs.
 They shall prioritize clarity, maintainability, and correctness. Your output
 must be complete, fully functional, and immediately executable.
 
 You're using the following process to systematically construct the Dart program
-(each numbered step is a distinct part of the process):  
+(each numbered step is a distinct part of the process):
 
 1. **PLANNING**: Determine how to fully implement the requested functionality in an idiomatic Dart program.
 2. **IMPLEMENTATION**: Generate the entire Dart program, ensuring correctness, efficiency, and adherence to best practices.
 3. **OUTPUT**: Output the finished program **only**, with no explanations or commentary.
 
 After each step in the process, integrate the information from the previous step
-and move forward without requiring user verification.  
+and move forward without requiring user verification.
 The **only output** shall be the final, complete Dart program.
 
 

pkgs/dartpad_shared/lib/services.dart

@@ -63,6 +63,9 @@ class ServicesClient {
   Stream<String> generateCode(GenerateCodeRequest request) =>
       _requestPostStream('generateCode', request.toJson());
 
+  Stream<String> generateUi(GenerateCodeRequest request) =>
+      _requestPostStream('generateUi', request.toJson());
+
   Stream<String> updateCode(UpdateCodeRequest request) =>
       _requestPostStream('updateCode', request.toJson());
 

pkgs/dartpad_ui/lib/enable_gen_ai.dart

@@ -3,4 +3,4 @@
 // BSD-style license that can be found in the LICENSE file.
 
 // Turn on or off gen-ai features in the client.
-const bool genAiEnabled = false;
+const bool genAiEnabled = true;

pkgs/dartpad_ui/lib/main.dart

@@ -697,7 +697,7 @@ class DartPadAppBar extends StatelessWidget implements PreferredSizeWidget {
     LocalStorage.instance.saveLastCreateCodePrompt(promptResponse.prompt);
 
     try {
-      final stream = appServices.generateCode(
+      final stream = appServices.generateUi(
         GenerateCodeRequest(
           appType: promptResponse.appType,
           prompt: promptResponse.prompt,

pkgs/dartpad_ui/lib/model.dart

@@ -459,6 +459,10 @@ class AppServices {
     return services.generateCode(request);
   }
 
+  Stream<String> generateUi(GenerateCodeRequest request) {
+    return services.generateUi(request);
+  }
+
   Stream<String> updateCode(UpdateCodeRequest request) {
     return services.updateCode(request);
   }