POST broke ;-;

lib/arrival_post.dart

@@ -4,25 +4,33 @@ import 'package:http/http.dart' as http;
 import 'package:witl/arrival.dart';
 
 Future<Arrival> insertArrival(String date, int weekday, int line, bool direction) async {
-  // POST response as JSON
+  final client = http.Client();
-  final response = await http.post(
-    Uri.parse('http://141.144.238.26:48502/arrivals/insert'),
-    headers: <String, String> {
-      // Headers used
-      'Content-Type': 'application/json; charset=UTF-8',
-    },
-    // Encoding a singular json entry
-    body: jsonEncode(<String, dynamic> {
-      'time_of_day': date,
-      'week_day': weekday,
-      'tram_line': line,
-      'direction': direction,
-    })
-  );
 
-  if (response.statusCode == 201) {
+  try {
-    return Arrival.fromJson(jsonDecode(response.body) as Map<String, dynamic>);
+    // POST response as JSON
-  } else {
+    final response = await client.post(
-    throw Exception('Insertion Failure.');
+      Uri.parse('http://141.144.238.26:48502/arrivals/insert'),
+      headers: <String, String> {
+        // Headers used
+        'Content-Type': 'application/json; charset=UTF-8',
+      },
+      // Encoding a singular json entry
+      body: jsonEncode(<String, dynamic> {
+        'time_of_day': date,
+        'week_day': weekday,
+        'tram_line': line,
+        'direction': direction,
+      })
+    ).timeout(const Duration(seconds: 10));
+
+    if (response.statusCode == 201) {
+      return Arrival.fromJson(jsonDecode(response.body) as Map<String, dynamic>);
+    } else {
+      throw Exception('Insertion Failure.');
+    }
+  } catch (error) {
+    throw Exception("Error Posting: $error");
+  } finally {
+    client.close();
   }
 }

lib/main.dart

@@ -12,7 +12,8 @@ class MyApp extends StatefulWidget {
   @override
   State<MyApp> createState() => _MyAppState();
 
-  static _MyAppState of(BuildContext context) => context.findAncestorStateOfType<_MyAppState>()!;
+  static _MyAppState of(BuildContext context) =>
+    context.findAncestorStateOfType<_MyAppState>()!;
 }
 
 class _MyAppState  extends State<MyApp> {
@@ -67,10 +68,13 @@ class _MyAppState  extends State<MyApp> {
       switch(newTheme) {
         case "Light":
           _theme = ThemeMode.light;
+          break;
         case "Dark":
           _theme = ThemeMode.dark;
+          break;
         case "System Default":
           _theme = ThemeMode.system;
+          break;
       }
     });
   }