Add user ID

lib/src/blocs/checkup/checkup_bloc.dart

@@ -2,13 +2,16 @@ import 'dart:async';
 
 import 'package:flutter_bloc/flutter_bloc.dart';
 
+import 'package:coronavirus_diary/src/blocs/preferences/preferences.dart';
 import 'package:coronavirus_diary/src/data/models/checkups.dart';
 import 'checkup.dart';
 
 export 'package:coronavirus_diary/src/data/models/checkups.dart';
 
 class CheckupBloc extends Bloc<CheckupEvent, CheckupState> {
-  CheckupBloc();
+  final PreferencesState preferencesState;
+
+  CheckupBloc({this.preferencesState});
 
   @override
   CheckupState get initialState => CheckupStateNotCreated();
@@ -35,7 +38,9 @@ class CheckupBloc extends Bloc<CheckupEvent, CheckupState> {
     // Create checkup using API
     yield CheckupStateCreating();
     yield CheckupStateInProgress(
-      checkup: Checkup(),
+      checkup: Checkup(
+        userId: preferencesState.preferences.userId,
+      ),
     );
   }
 

lib/src/data/models/checkups.dart

@@ -5,6 +5,7 @@ part 'checkups.g.dart';
 @JsonSerializable()
 class Checkup {
   String id;
+  String userId;
   DateTime created;
   bool dataContributionPreference;
   CheckupLocation location;
@@ -13,6 +14,7 @@ class Checkup {
 
   Checkup({
     this.id,
+    this.userId,
     this.created,
     dataContributionPreference,
     this.location,

lib/src/data/models/preferences.dart

@@ -1,12 +1,24 @@
 import 'package:json_annotation/json_annotation.dart';
+import 'package:uuid/uuid.dart';
+import 'package:uuid/uuid_util.dart';
 
 part 'preferences.g.dart';
 
 @JsonSerializable()
 class Preferences {
-  Preferences();
+  final String userId;
 
-  Preferences.clone(Preferences preferences) : this();
+  Preferences({
+    userId,
+  }) : userId = userId ??
+            Uuid().v4(options: {
+              'grng': UuidUtil.cryptoRNG,
+            });
+
+  Preferences.clone(Preferences preferences)
+      : this(
+          userId: preferences.userId,
+        );
 
   factory Preferences.fromJson(Map<String, dynamic> json) =>
       _$PreferencesFromJson(json);

lib/src/ui/screens/checkup/checkup.dart

@@ -3,6 +3,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:provider/provider.dart';
 
 import 'package:coronavirus_diary/src/blocs/checkup/checkup.dart';
+import 'package:coronavirus_diary/src/blocs/preferences/preferences.dart';
 import 'package:coronavirus_diary/src/blocs/questions/questions.dart';
 import 'package:coronavirus_diary/src/ui/widgets/loading_indicator.dart';
 import 'checkup_loaded_body.dart';
@@ -14,9 +15,13 @@ class CheckupScreen extends StatelessWidget {
   Widget build(BuildContext context) {
     // Initializing the bloc provider here so that the bloc is
     // accessible to all functions in the checkup screen body
-    return BlocProvider<CheckupBloc>(
-      create: (context) => CheckupBloc(),
-      child: CheckupScreenBody(),
+    return BlocBuilder<PreferencesBloc, PreferencesState>(
+      builder: (context, state) {
+        return BlocProvider<CheckupBloc>(
+          create: (context) => CheckupBloc(preferencesState: state),
+          child: CheckupScreenBody(),
+        );
+      },
     );
   }
 }

pubspec.lock

@@ -569,6 +569,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.6"
+  uuid:
+    dependency: "direct main"
+    description:
+      name: uuid
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.4"
   vector_math:
     dependency: transitive
     description:

pubspec.yaml

@@ -30,6 +30,7 @@ dependencies:
   path_provider: ^1.6.5
   path: ^1.6.4
   provider: ^4.0.4
+  uuid: ^2.0.4
 
 dev_dependencies:
   build_runner: ^1.8.0