add shelf static server

Author: posthello-code

bin/server.dart

@@ -1,13 +1,32 @@
 import 'dart:io';
 import 'package:shelf/shelf.dart';
 import 'package:shelf/shelf_io.dart' as io;
+import 'package:shelf_static/shelf_static.dart';
 
 void main() async {
-  final handler =
-      const Pipeline().addMiddleware(logRequests()).addHandler(echoRequest);
+  // Check if index.html exists
+  String indexFile = 'build/web/index.html';
+  bool indexFileExists = await File('build/web/index.html').exists();
+
+  if (!indexFileExists) {
+    indexFile = 'README.md';
+  }
+
+  final handler = const Pipeline()
+      .addMiddleware(logRequests())
+      .addMiddleware(_corsHeaders) // Add CORS headers middleware
+      .addHandler(createStaticHandler('build/web', defaultDocument: indexFile));
+
+  final handler2 = const Pipeline()
+      .addMiddleware(logRequests())
+      .addMiddleware(_corsHeaders) // Add CORS headers middleware
+      .addHandler(echoRequest);
 
   final server = await io.serve(handler, InternetAddress.anyIPv4, 4001);
-  print('Serving at http://${server.address.host}:${server.port}');
+  final server2 = await io.serve(handler2, InternetAddress.anyIPv4, 4002);
+  print('Serving static site at http://${server.address.host}:${server.port}');
+  print(
+      'Serving handling requests at http://${server2.address.host}:${server2.port}');
 }
 
 Response echoRequest(Request request) {
@@ -17,3 +36,15 @@ Response echoRequest(Request request) {
     return Response.notFound('Not found');
   }
 }
+
+// CORS headers middleware
+Middleware _corsHeaders =
+    createMiddleware(responseHandler: (Response response) {
+  response = response.change(headers: {
+    'Access-Control-Allow-Origin': '*',
+    'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
+    'Access-Control-Allow-Headers':
+        'Origin, X-Requested-With, Content-Type, Accept'
+  });
+  return response;
+});

build/web/README.md

@@ -0,0 +1 @@
+Put a static site in the web folder to serve it up here!

pubspec.lock

@@ -354,7 +354,7 @@ packages:
     source: hosted
     version: "3.0.1"
   shelf_static:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: shelf_static
       sha256: e792b76b96a36d4a41b819da593aff4bdd413576b3ba6150df5d8d9996d2e74c

pubspec.yaml

@@ -9,6 +9,7 @@ environment:
 dependencies:
   path: ^1.8.0
   shelf: ^1.4.0
+  shelf_static: ^1.1.1
 
 dev_dependencies:
   dart_dev: ^4.0.0