Working project

new_backend/routes/index.dart

@@ -0,0 +1,51 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:dart_frog/dart_frog.dart';
+import 'package:new_backend/shrink_ray.dart';
+import 'package:path/path.dart' as path;
+
+Future<Response> onRequest(RequestContext context) async {
+  switch (context.request.method) {
+    case HttpMethod.put:
+    case HttpMethod.delete:
+    case HttpMethod.head:
+    case HttpMethod.options:
+    case HttpMethod.patch:
+      return Response(statusCode: 404);
+    case HttpMethod.post:
+      try {
+        final reqJson = await context.request.body();
+        final data = jsonDecode(reqJson) as Map<String, dynamic>;
+        final url = data['url'] as String?;
+        if (url == null) {
+          return Response(statusCode: 401, body: 'Missing url');
+        }
+        await Future<void>.delayed(const Duration(seconds: 2));
+        final res = ShrinkRay.shrinkUrl(url);
+        switch (res.status) {
+          case Status.ok:
+            shrunkUrls[res.content] = url;
+            return Response(
+              body: jsonEncode(
+                {'url': 'http://localhost:8080/u/${res.content}'},
+              ),
+            );
+          case Status.error:
+            return Response(statusCode: 401, body: res.content);
+        }
+      } catch (err, st) {
+        print(st);
+        print(err);
+        return Response(statusCode: 500, body: 'Unexpected error occurred');
+      }
+    case HttpMethod.get:
+      final file = File(path.join(Directory.current.path, 'public', 'index.html'));
+      if (!file.existsSync()) {
+        return Response(body: 'Index Not found');
+      }
+      final indexHtml = file.readAsStringSync();
+
+      return Response(body: indexHtml, headers: {'Content-Type': 'text/html'});
+  }
+}

new_backend/routes/u/[urlPath].dart

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+import 'dart:convert';
+
+import 'package:dart_frog/dart_frog.dart';
+import 'package:new_backend/shrink_ray.dart';
+
+Future<Response> onRequest(RequestContext context, String urlPath) async {
+  switch (context.request.method) {
+    case HttpMethod.put:
+    case HttpMethod.delete:
+    case HttpMethod.head:
+    case HttpMethod.options:
+    case HttpMethod.patch:
+    case HttpMethod.post:
+      return Response(statusCode: 404);
+    case HttpMethod.get:
+      final maybeUrl = shrunkUrls[urlPath];
+      switch (maybeUrl) {
+        case null:
+          return Response(statusCode: 404);
+        default:
+          return Response(statusCode: 302, headers: {'Location': maybeUrl});
+      }
+  }
+}