sentry diagnostics

lib/main.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:aitrainer_app/view/account.dart';
 import 'package:aitrainer_app/view/customer_bodytype_page.dart';
 import 'package:aitrainer_app/view/customer_fitness_page.dart';
@@ -25,8 +27,73 @@ import 'package:flutter/widgets.dart';
 import 'package:provider/provider.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:aitrainer_app/localization/app_localization.dart';
+import 'package:sentry/sentry.dart';
 
-void main() {
+final SentryClient _sentry = new SentryClient(dsn: 'https://5fac40cbfcfb4c15aa80c7a8638d7310@o418565.ingest.sentry.io/5322520');
+
+/// Whether the VM is running in debug mode.
+///
+/// This is useful to decide whether a report should be sent to sentry. Usually
+/// reports from dev mode are not very useful, as these happen on developers'
+/// workspaces rather than on users' devices in production.
+bool get isInDebugMode {
+  bool inDebugMode = false;
+  assert(inDebugMode = true);
+  return inDebugMode;
+}
+
+/// Reports [error] along with its [stackTrace] to Sentry.io.
+Future<Null> _reportError(dynamic error, dynamic stackTrace) async {
+  print('Caught error: $error');
+
+  // Errors thrown in development mode are unlikely to be interesting. You can
+  // check if you are running in dev mode using an assertion and omit sending
+  // the report.
+  if (isInDebugMode) {
+    print(stackTrace);
+    print('In dev mode. Not sending report to Sentry.io.');
+    return;
+  }
+
+  print('Reporting to Sentry.io...');
+
+  final SentryResponse response = await _sentry.captureException(
+    exception: error,
+    stackTrace: stackTrace,
+  );
+
+  if (response.isSuccessful) {
+    print('Success! Event ID: ${response.eventId}');
+  } else {
+    print('Failed to report to Sentry.io: ${response.error}');
+  }
+}
+
+Future<Null> main() async {
+  // This captures errors reported by the Flutter framework.
+  FlutterError.onError = (FlutterErrorDetails details) async {
+    if (isInDebugMode) {
+      // In development mode simply print to console.
+      FlutterError.dumpErrorToConsole(details);
+    } else {
+      // In production mode report to the application zone to report to
+      // Sentry.
+      Zone.current.handleUncaughtError(details.exception, details.stack);
+    }
+  };
+
+  // This creates a [Zone] that contains the Flutter application and stablishes
+  // an error handler that captures errors and reports them.
+  //
+  // Using a zone makes sure that as many errors as possible are captured,
+  // including those thrown from [Timer]s, microtasks, I/O, and those forwarded
+  // from the `FlutterError` handler.
+  //
+  // More about zones:
+  //
+  // - https://api.dartlang.org/stable/1.24.2/dart-async/Zone-class.html
+  // - https://www.dartlang.org/articles/libraries/zones
+  runZonedGuarded<Future<Null>>(() async {
     runApp(
         MultiProvider(
           // Initialize the model in the builder. That way, Provider
@@ -38,10 +105,13 @@ void main() {
           ],
 
           child: AitrainerApp(),
-      ),
+        ));
-  );
+  }, (error, stackTrace) async {
+    await _reportError(error, stackTrace);
+  });
 }
 
+
 class AitrainerApp extends StatelessWidget {
 
   @override

lib/widgets/bottom_nav.dart

@@ -40,6 +40,10 @@ class BottomNavigator {
                 Navigator.of(context).pop();
                 Navigator.of(context).pushNamed('home');
 
+                break;
+              case 1:
+                throw new StateError('This is a Dart exception on event.');
+
                 break;
               case 2:
                 Navigator.of(context).pop();

pubspec.lock

@@ -1,6 +1,20 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.39.12"
   archive:
     dependency: transitive
     description:
@@ -57,13 +71,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.11"
   crypto:
     dependency: transitive
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.5"
+    version: "2.1.4"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -92,6 +120,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -104,6 +139,11 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.8"
+  flutter_driver:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_launcher_icons:
     dependency: "direct dev"
     description:
@@ -117,10 +157,29 @@ packages:
     source: sdk
     version: "0.0.0"
   flutter_test:
-    dependency: "direct dev"
+    dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.0"
+  fuchsia_remote_debug_protocol:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+3"
   http:
     dependency: "direct dev"
     description:
@@ -128,6 +187,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.1"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.0"
   http_parser:
     dependency: transitive
     description:
@@ -149,6 +215,34 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.16.1"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.4"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.2"
+  json_rpc_2:
+    dependency: transitive
+    description:
+      name: json_rpc_2
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.11.4"
   matcher:
     dependency: transitive
     description:
@@ -163,6 +257,55 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.8"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.6+3"
+  mockito:
+    dependency: "direct main"
+    description:
+      name: mockito
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.1"
+  multi_server_socket:
+    dependency: transitive
+    description:
+      name: multi_server_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
+  node_interop:
+    dependency: transitive
+    description:
+      name: node_interop
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  node_io:
+    dependency: transitive
+    description:
+      name: node_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.12"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
   path:
     dependency: transitive
     description:
@@ -184,6 +327,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.4"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.1"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.0"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.12"
   provider:
     dependency: "direct dev"
     description:
@@ -191,6 +355,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.2.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.4"
+  sentry:
+    dependency: "direct main"
+    description:
+      name: sentry
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
   shared_preferences:
     dependency: "direct dev"
     description:
@@ -198,11 +376,53 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.4.3"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.7"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.8"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.3"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.99"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.9"
   source_span:
     dependency: transitive
     description:
@@ -231,6 +451,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.5"
+  sync_http:
+    dependency: transitive
+    description:
+      name: sync_http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
   term_glyph:
     dependency: transitive
     description:
@@ -238,6 +465,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  test:
+    dependency: "direct dev"
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.4"
   test_api:
     dependency: transitive
     description:
@@ -245,6 +479,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.15"
+  test_core:
+    dependency: transitive
+    description:
+      name: test_core
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.4"
   typed_data:
     dependency: transitive
     description:
@@ -252,6 +493,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.6"
+  usage:
+    dependency: transitive
+    description:
+      name: usage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.4.2"
   vector_math:
     dependency: transitive
     description:
@@ -259,6 +507,48 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.8"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.0"
+  vm_service_client:
+    dependency: transitive
+    description:
+      name: vm_service_client
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.6+2"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.7+15"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  webdriver:
+    dependency: transitive
+    description:
+      name: webdriver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.2"
+  webkit_inspection_protocol:
+    dependency: transitive
+    description:
+      name: webkit_inspection_protocol
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.3"
   xml:
     dependency: transitive
     description:

pubspec.yaml

@@ -28,13 +28,17 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.3
   devicelocale: ^0.3.1
+  sentry: ^3.0.1
+
+  mockito: ^4.1.1
 
   flutter_localizations:
     sdk: flutter
 
 dev_dependencies:
-  flutter_test:
+  flutter_driver:
     sdk: flutter
+  test: any
 
   http: 0.12.1
   provider: ^3.2.0