Fix notifications?

lib/api/api.dart

@@ -147,8 +147,10 @@ class APIRequestBuilder {
       throw Exception('API Key or API URL not set');
     }
 
-    final response =
-        await _httpClient.post(generateUrl(), body: {'api_key': api.apiKey});
+    var url = generateUrl();
+    print('Fetching $url');
+
+    final response = await _httpClient.post(url, body: {'api_key': api.apiKey});
     final data = jsonDecode((response).body);
     if (data['auth'] == 0) throw UnauthenticatedException(data['auth']);
     return data;

lib/notifications/tasks.dart

@@ -1,4 +1,3 @@
-import 'dart:convert';
 import 'dart:math';
 
 import 'package:feet/api/api.dart';
@@ -38,16 +37,26 @@ void callbackDispatcher() {
           return true;
         }
 
+        if (latest == null || latest == 0) {
+          print("newestKnownPost is not set; cancelling task");
+          return true;
+        }
+
         var api = FeverAPI(
           apiKey: apiKey,
           apiUrl: apiUrl,
           sharedPrefs: sharedPreferences,
         );
 
-        await api.request().withItems().sinceId(latest ?? 0).execute();
+        var response =
+            await api.request().withItems().sinceId(latest).execute();
         var items =
             api.cache.items.getAll().values.where((post) => !post.isRead);
 
+        print("Found ${items.length} new unread posts (out of "
+            "${api.cache.items.size} total)");
+        print(response);
+
         // Only fetch feeds and favicons if necessary to avoid wasting bandwidth
         if (items.isNotEmpty) {
           print("New posts found, fetching feeds and favicons");
@@ -100,7 +109,7 @@ void callbackDispatcher() {
 
 void setupBackgroundTasks() async {
   WidgetsFlutterBinding.ensureInitialized();
-  Workmanager().initialize(
+  await Workmanager().initialize(
     callbackDispatcher,
     isInDebugMode: kDebugMode,
   );
@@ -108,9 +117,10 @@ void setupBackgroundTasks() async {
   await Permission.notification.request();
 
   // Runs every 15 minutes
-  Workmanager().registerPeriodicTask(
-    'fetch-notifications',
+  await Workmanager().registerPeriodicTask(
+    'fetch_notifications',
     'fetchNotifications',
-    initialDelay: const Duration(seconds: 30),
+    constraints: Constraints(networkType: NetworkType.connected),
+    initialDelay: const Duration(seconds: 60),
   );
 }