feat: Support transient identities and traits

Author: khvn26

Diff for: lib/src/model/feature.g.dart

@@ -6,8 +6,12 @@ part 'identity.g.dart';
 /// Personalized user
 @JsonSerializable()
 class Identity {
+  @JsonKey(includeIfNull: false)
+  final bool? transient;
   final String identifier;
+
   const Identity({
+    this.transient,
     required this.identifier,
   });
 
@@ -16,6 +20,6 @@ class Identity {
 
   Map<String, dynamic> toJson() => _$IdentityToJson(this);
   String asString() => jsonEncode(toJson());
-  Identity copyWith({String? identifier}) =>
-      Identity(identifier: identifier ?? this.identifier);
+  Identity copyWith({String? identifier, bool? transient}) =>
+      Identity(identifier: identifier ?? this.identifier, transient: transient ?? this.transient);
 }

Diff for: lib/src/model/flag.g.dart

@@ -8,13 +8,16 @@ part 'trait.g.dart';
 @JsonSerializable()
 class Trait {
   final int? id;
+  @JsonKey(includeIfNull: false)
+  final bool? transient;
   @JsonKey(name: 'trait_key')
   final String key;
   @JsonKey(name: 'trait_value', fromJson: _fromJson, toJson: _toJson)
   final dynamic value;
 
   Trait({
     this.id,
+    this.transient,
     required this.key,
     required this.value,
   });

Diff for: lib/src/model/flags_and_traits.g.dart

@@ -3,7 +3,7 @@ description: >-
   Core Package of Flutter Client SDK for https://www.flagsmith.com/, Flagsmith is 100% Open
   Source. Host yourself or let us take care of the hosting.
 
-version: 3.0.0
+version: 3.1.0
 homepage: https://github.com/Flagsmith/flagsmith-flutter-core
 repository: https://github.com/Flagsmith/flagsmith-flutter-core
 issue_tracker: https://github.com/Flagsmith/flagsmith-flutter-core/issues
@@ -14,13 +14,13 @@ environment:
 dependencies:
   crypto: ^3.0.1
   encrypt: ^5.0.1
-  rxdart: ^0.27.5
+  rxdart: ^0.28.0
   json_annotation: ^4.0.1
   collection: ^1.15.0
 dev_dependencies:
-  flutter_lints: ^1.0.0
-  test:  ">=1.16.0 <=1.17.12"
-  http_mock_adapter: ^0.3.2
+  flutter_lints: ^5.0.0
+  test: ^1.25.8
+  http_mock_adapter: ^0.6.1
   mockito: ^5.0.15
-  json_serializable: ^4.1.3
+  json_serializable: ^6.8.0
   build_runner: ^2.1.2

Diff for: lib/src/model/identity.dart

@@ -6,22 +6,30 @@ import 'package:test/test.dart';
 void main() {
   const identityId = '123-456-789';
   const identityJson = r'''{"identifier":"123-456-789"}''';
+  const transientIdentityJson = r'''{"identifier":"123-456-789","transient":true}''';
   final decodedIdentityJson = jsonDecode(identityJson) as Map<String, dynamic>;
+  final decodedTransientIdentityJson = jsonDecode(transientIdentityJson) as Map<String, dynamic>;
   // final malformedIdentityJson = '''{"identifier_bad_guy":"$identityId"}''';
   group('[Identity]', () {
-    test('When identy response converted then success', () {
+    test('When identity response converted then success', () {
       final identity = Identity.fromJson(decodedIdentityJson);
       expect(identity.identifier, identityId);
     });
+    test('When transient identity response converted then success', () {
+      final identity = Identity.fromJson(decodedTransientIdentityJson);
+      expect(identity.identifier, identityId);
+      expect(identity.transient, true);
+    });
   });
 
   group('[Identity] - copyWith', () {
     test('When identity updated then success', () {
       final identity = Identity.fromJson(decodedIdentityJson);
       expect(identity.identifier, identityId);
 
-      final updated = identity.copyWith(identifier: 'newOne');
+      final updated = identity.copyWith(identifier: 'newOne', transient: true);
       expect(updated.identifier, 'newOne');
+      expect(updated.transient, true);
       expect(identity.hashCode, isNot(updated.hashCode));
     });
     test('When identity not updated then success', () {

Diff for: lib/src/model/identity.g.dart

@@ -33,6 +33,14 @@ void main() {
   }''';
   final decodedTraitDoubleValue =
       jsonDecode(traitDoubleValue) as Map<String, dynamic>;
+  const transientTraitValue = '''{
+    "id": 12,
+    "trait_key": "trait_key",
+    "trait_value": "transient",
+    "transient": true
+  }''';
+  final decodedTransientTraitValue =
+      jsonDecode(transientTraitValue) as Map<String, dynamic>;
 
   group('[Trait] - basic tests', () {
     test('When trait parsed then success', () {
@@ -56,6 +64,14 @@ void main() {
     });
 
     test('When trait parsed with double value then success', () {
+      final trait = Trait.fromJson(decodedTransientTraitValue);
+      expect(trait.id, 12);
+      expect(trait.key, 'trait_key');
+      expect(trait.value, 'transient');
+      expect(trait.transient, true);
+    });
+
+    test('When transient trait parsed then success', () {
       final trait = Trait.fromJson(decodedTraitDoubleValue);
       expect(trait.id, 12);
       expect(trait.key, 'trait_key');
@@ -185,5 +201,24 @@ void main() {
       expect(mapped['trait_key'], 'trait_key');
       expect(mapped['trait_value'], true);
     });
+
+    test(
+        'When transient trait converted to Map<String, dynamic> then success',
+        () {
+      final trait = Trait(
+        id: 12,
+        key: 'trait_key',
+        value: 'transient',
+        transient: true,
+      );
+
+      final mapped = trait.toJson();
+
+      expect(mapped, isNotNull);
+      expect(mapped['id'], 12);
+      expect(mapped['trait_key'], 'trait_key');
+      expect(mapped['trait_value'], 'transient');
+      expect(mapped['transient'], true);
+    });
   });
 }