DX-257 , DX-267

CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGELOG
 
+### **DEC-11-2024**
+
+#### v1.0.0 - v3 migration null support added
+#### Removed super_enum lib
+
 ## v0.5.1 - Added support for gcp_na region
 #### Added support for gcp_na region
 

lib/client.dart

@@ -7,11 +7,11 @@ import 'package:http/http.dart' as http;
 
 class HttpClient extends http.BaseClient {
   final http.Client _client;
-  final Stack stack;
-  final Map<String, String> stackHeaders;
+  final Stack? stack;
+  final Map<String, String>? stackHeaders;
 
-  factory HttpClient(Map<String, String> headers,
-      {http.Client client, Stack stack}) {
+  factory HttpClient(Map<String, String>? headers,
+      {http.Client? client, Stack? stack}) {
     final stackClient = client ?? http.Client();
     return HttpClient._internal(stackClient, headers, stack);
   }
@@ -26,13 +26,13 @@ class HttpClient extends http.BaseClient {
     return _client.send(request);
   }
 
-  Future<T> sendRequest<T, K>(Uri uri) async {
-    stackHeaders[CONTENT_TYPE] = CONTENT_TYPE_VALUE;
-    stackHeaders[X_USER_AGENT] = X_USER_AGENT_VALUE;
+  Future<T?> sendRequest<T, K>(Uri uri) async {
+    stackHeaders![CONTENT_TYPE] = CONTENT_TYPE_VALUE;
+    stackHeaders![X_USER_AGENT] = X_USER_AGENT_VALUE;
     final response = await http
-        .get(uri, headers: stackHeaders)
+        .get(uri, headers: stackHeaders as Map<String, String>)
         .timeout(const Duration(seconds: TIMEOUT));
-    Object bodyJson;
+    Object? bodyJson;
     try {
       bodyJson = jsonDecode(response.body);
     } on FormatException {
@@ -44,42 +44,42 @@ class HttpClient extends http.BaseClient {
       rethrow;
     }
     if (response.statusCode == 200) {
-      final Map bodyJson = json.decode(utf8.decode(response.bodyBytes));
-      if (T == EntryModel && bodyJson.containsKey('entry')) {
+      final Map? bodyJson = json.decode(utf8.decode(response.bodyBytes));
+      if (T == EntryModel && bodyJson!.containsKey('entry')) {
         return fromJson<T, K>(bodyJson['entry']);
-      } else if (K == EntryModel && bodyJson.containsKey('entries')) {
+      } else if (K == EntryModel && bodyJson!.containsKey('entries')) {
         return fromJson<T, K>(bodyJson['entries']);
-      } else if (T == AssetModel && bodyJson.containsKey('asset')) {
+      } else if (T == AssetModel && bodyJson!.containsKey('asset')) {
         return fromJson<T, K>(bodyJson['asset']);
-      } else if (K == AssetModel && bodyJson.containsKey('assets')) {
+      } else if (K == AssetModel && bodyJson!.containsKey('assets')) {
         return fromJson<T, K>(bodyJson['assets']);
-      } else if (T == SyncResult && bodyJson.containsKey('items')) {
+      } else if (T == SyncResult && bodyJson!.containsKey('items')) {
         return fromJson<T, K>(bodyJson);
       } else {
-        if (bodyJson.containsKey('entries')) {
-          var previewResponse = stack.livePreview['entries'];
+        if (bodyJson!.containsKey('entries')) {
+          var previewResponse = stack!.livePreview?.entries;
           if (previewResponse != null) {
-            return fromJson<T, K>(mergeLivePreview(bodyJson, previewResponse));
+            return fromJson<T, K>(mergeLivePreview(bodyJson, Map.fromEntries(previewResponse)));
           }
         }
         return fromJson<T, K>(bodyJson);
       }
     } else {
-      return bodyJson;
+      return fromJson<T, K>(bodyJson) as FutureOr<T?>;
     }
   }
 
-  mergeLivePreview(Map bodyJson, Map previewResponse) {}
+  mergeLivePreview(Map? bodyJson, Map previewResponse) {}
 
   /// Generic objects as well as List of generic objects
   /// (from a JSON list response).
   /// First, you need to have a function that checks the type  of the
   /// generic object and returns the result of the corresponding fromJson call
   /// code taken from:
   /// https://stackoverflow.com/questions/56271651/how-to-pass-a-generic-type-as-a-parameter-to-a-future-in-flutter
-  static T fromJson<T, K>(dynamic json) {
+  static T? fromJson<T, K>(dynamic json) {
     if (json is Iterable) {
-      return _fromJsonList<K>(json) as T;
+      return _fromJsonList<K>(json as List<dynamic>) as T;
     } else if (T == AssetModel) {
       return AssetModel.fromJson(json) as T;
     } else if (T == EntryModel) {
@@ -91,14 +91,14 @@ class HttpClient extends http.BaseClient {
     }
   }
 
-  static List<K> _fromJsonList<K>(List jsonList) {
+  static List<K?>? _fromJsonList<K>(List? jsonList) {
     if (jsonList == null) {
       return null;
     }
 
-    final output = <K>[];
+    final output = <K?>[];
     // ignore: prefer_final_in_for_each
-    for (Map<String, dynamic> json in jsonList) {
+    for (Map<String, dynamic> json in jsonList as Iterable<Map<String, dynamic>>) {
       output.add(fromJson(json));
     }
     return output;

lib/constant.dart

@@ -9,13 +9,13 @@ const X_USER_AGENT_VALUE = '$SDK_NAME-v$SDK_VERSION';
 const TIMEOUT = 30;
 
 void ifLivePreviewEnable(HttpClient _client) {
-  final dictLivePreview = _client.stack.livePreview;
+  final dictLivePreview = _client.stack!.livePreview;
   const String AUTH = 'authorization';
-  if (dictLivePreview.containsKey('enable')) {
-    _client.stack.removeHeader('access_token');
-    _client.stack.removeHeader('environment');
-    _client.stack.setHeader(AUTH, _client.stack.livePreview[AUTH]);
-    _client.stack.setHost(dictLivePreview['host']);
+  if (dictLivePreview!.containsKey('enable')) {
+    _client.stack!.removeHeader('access_token');
+    _client.stack!.removeHeader('environment');
+    _client.stack!.setHeader(AUTH, _client.stack!.livePreview![AUTH]);
+    _client.stack!.setHost(dictLivePreview['host']);
     final String errMessage = '''Invalid content_type_uid! Make sure you have 
           provided same content_type_uid 
           livePreviewQuery parameter in stack class''';

lib/src/asset.dart

@@ -8,11 +8,11 @@ import 'package:contentstack/client.dart';
 /// Learn more about [Assets](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#get-a-single-asset)
 ///
 class Asset {
-  final HttpClient _client;
-  final String _uid;
-  String _urlPath;
+  final HttpClient? _client;
+  final String? _uid;
+  String? _urlPath;
 
-  final Map<String, String> assetParameter = <String, String>{};
+  final Map<String, String?> assetParameter = <String, String?>{};
 
   /// * [_uid] assetUid:
   /// Enter the unique ID of the asset of which you wish to retrieve
@@ -27,8 +27,8 @@ class Asset {
   /// });
   ///
   Asset(this._uid, [this._client]) {
-    assetParameter['environment'] = _client.stackHeaders['environment'];
-    _urlPath = '/${_client.stack.apiVersion}/assets';
+    assetParameter['environment'] = _client!.stackHeaders!['environment'];
+    _urlPath = '/${_client!.stack!.apiVersion}/assets';
   }
 
   ///
@@ -57,13 +57,13 @@ class Asset {
   /// }).catchError((error) {
   ///   print(error['error_code']);
   /// });
-  Future<T> fetch<T, K>() {
-    if (_uid == null || _uid.isEmpty) {
+  Future<T?> fetch<T, K>() {
+    if (_uid == null || _uid!.isEmpty) {
       throw Exception('Provide asset uid to fetch single entry');
     }
     final uri =
-        Uri.https(_client.stack.endpoint, '$_urlPath/$_uid', assetParameter);
-    return _client.sendRequest<T, K>(uri);
+        Uri.https(_client!.stack!.endpoint!, '$_urlPath/$_uid', assetParameter);
+    return _client!.sendRequest<T, K>(uri);
   }
 
   ///

lib/src/asset_query.dart

@@ -8,12 +8,12 @@ import 'package:contentstack/src/base_query.dart';
 /// You can also specify the environment of which you wish to get the assets.
 /// Learn more about [Assets](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#all-assets)
 class AssetQuery extends BaseQuery {
-  final HttpClient _client;
-  String _urlPath;
+  final HttpClient? _client;
+  late String _urlPath;
 
   AssetQuery([this._client]) {
-    queryParameter['environment'] = _client.stackHeaders['environment'];
-    _urlPath = '/${_client.stack.apiVersion}/assets';
+    queryParameter['environment'] = _client!.stackHeaders!['environment'];
+    _urlPath = '/${_client!.stack!.apiVersion}/assets';
   }
 
   ///
@@ -42,9 +42,9 @@ class AssetQuery extends BaseQuery {
   /// }).catchError((error) {
   ///   print(error['error_code']);
   /// });
-  Future<T> find<T, K>() async {
-    final uri = Uri.https(_client.stack.endpoint, _urlPath, queryParameter);
-    return _client.sendRequest<T, K>(uri);
+  Future<T?> find<T, K>() async {
+    final uri = Uri.https(_client!.stack!.endpoint!, _urlPath, queryParameter);
+    return _client!.sendRequest<T, K>(uri);
   }
 
   ///

lib/src/base_query.dart

@@ -1,11 +1,12 @@
 import 'package:contentstack/src/enums/operations.dart';
+import 'package:contentstack/src/enums/operations_type.dart';
 
 ///
 /// This is base Query class that contains common
 /// functions to query in Entry, Assets and content_type
 /// common query for asset & entry
 class BaseQuery {
-  final Map<String, String> queryParameter = <String, String>{};
+  final Map<String, String?> queryParameter = <String, String?>{};
   final Map<String, dynamic> parameter = <String, dynamic>{};
 
   ///
@@ -156,27 +157,38 @@ class BaseQuery {
 
   void where(String fieldUid, QueryOperation queryOperation) {
     if (fieldUid != null && fieldUid.isNotEmpty) {
-      queryOperation.when(equals: (operation) {
-        parameter[fieldUid] = operation.value;
-      }, notEquals: (operation) {
-        parameter[fieldUid] = {'\$ne': operation.value};
-      }, includes: (operation) {
-        parameter[fieldUid] = {'\$in': operation.value};
-      }, excludes: (operation) {
-        parameter[fieldUid] = {'\$nin': operation.value};
-      }, isLessThan: (operation) {
-        parameter[fieldUid] = {'\$lt': operation.value};
-      }, isLessThanOrEqual: (operation) {
-        parameter[fieldUid] = {'\$lte': operation.value};
-      }, isGreaterThan: (operation) {
-        parameter[fieldUid] = {'\$gt': operation.value};
-      }, isGreaterThanOrEqual: (operation) {
-        parameter[fieldUid] = {'\$gte': operation.value};
-      }, exists: (operation) {
-        parameter[fieldUid] = {'\$exists': operation.value};
-      }, matches: (operation) {
-        parameter[fieldUid] = {'\$regex': operation.regex};
-      });
+      switch(queryOperation.operationType) {
+        case QueryOperationType.Equals:
+          parameter[fieldUid] = queryOperation.value;
+          break;
+        case QueryOperationType.NotEquals:
+          parameter[fieldUid] = {'\$ne': queryOperation.value};
+          break;
+        case QueryOperationType.Includes:
+          parameter[fieldUid] = {'\$in': queryOperation.value};
+          break;
+        case QueryOperationType.Excludes:
+          parameter[fieldUid] = {'\$nin': queryOperation.value};
+          break;
+        case QueryOperationType.IsLessThan:
+          parameter[fieldUid] = {'\$lt': queryOperation.value};
+          break;
+        case QueryOperationType.IsLessThanOrEqual:
+          parameter[fieldUid] = {'\$lte': queryOperation.value};
+          break;
+        case QueryOperationType.IsGreaterThan:
+          parameter[fieldUid] = {'\$gt': queryOperation.value};
+          break;
+        case QueryOperationType.IsGreaterThanOrEqual:
+          parameter[fieldUid] = {'\$gte': queryOperation.value};
+          break;
+        case QueryOperationType.Exists:
+          parameter[fieldUid] = {'\$exists': queryOperation.value};
+          break;
+        case QueryOperationType.Matches:
+          parameter[fieldUid] = {'\$regex': queryOperation.value};
+          break;
+      }
     }
   }
 }

lib/src/contenttype.dart

@@ -11,15 +11,15 @@ import 'package:contentstack/contentstack.dart';
 /// * Read more about [ContentTypes](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#content-types).
 ///
 class ContentType {
-  final String _contentTypeUid;
-  final HttpClient _client;
-  String urlPath;
-  final Map<String, String> _queryParameter = <String, String>{};
+  final String? _contentTypeUid;
+  final HttpClient? _client;
+  String? urlPath;
+  final Map<String, String?> _queryParameter = <String, String?>{};
 
   ContentType([this._contentTypeUid, this._client]) {
-    _queryParameter['environment'] = _client.stackHeaders['environment'];
-    if (_contentTypeUid != null && _contentTypeUid.isNotEmpty) {
-      urlPath = '/${_client.stack.apiVersion}/content_types/$_contentTypeUid';
+    _queryParameter['environment'] = _client!.stackHeaders!['environment'];
+    if (_contentTypeUid != null && _contentTypeUid!.isNotEmpty) {
+      urlPath = '/${_client!.stack!.apiVersion}/content_types/$_contentTypeUid';
     }
   }
 
@@ -45,7 +45,7 @@ class ContentType {
   ///
   /// ```
   ///
-  Entry entry({String entryUid}) {
+  Entry entry({String? entryUid}) {
     return Entry(entryUid, _client, _contentTypeUid);
   }
 
@@ -65,15 +65,15 @@ class ContentType {
   /// print(response);
   /// ```
   ///
-  Future<T> fetch<T, K>([Map<String, dynamic> queryParams]) {
+  Future<T?> fetch<T, K>([Map<String, dynamic>? queryParams]) {
     if (urlPath == null) {
       throw Exception('content_type_uid is missing');
     }
     if (queryParams != null && queryParams.isNotEmpty) {
-      _queryParameter.addAll(queryParams);
+      _queryParameter.addAll(queryParams as Map<String, String?>);
     }
-    final uri = Uri.https(_client.stack.endpoint, urlPath, _queryParameter);
-    return _client.sendRequest<T, K>(uri);
+    final uri = Uri.https(_client!.stack!.endpoint!, urlPath!, _queryParameter);
+    return _client!.sendRequest<T, K>(uri);
   }
 
   ///
@@ -90,6 +90,6 @@ class ContentType {
   /// ```
   ///
   ContentTypeQuery query() {
-    return ContentTypeQuery(_client);
+    return ContentTypeQuery(_client!);
   }
 }

lib/src/contenttype_query.dart

@@ -7,12 +7,12 @@ import 'package:contentstack/src/base_query.dart';
 /// available in a particular stack in your account.
 /// [ContentType](https://www.contentstack.com/docs/developers/apis/content-delivery-api/#all-content-types).
 class ContentTypeQuery extends BaseQuery {
-  final HttpClient _client;
-  String _urlPath;
+  final HttpClient? _client;
+  late String _urlPath;
 
   ContentTypeQuery([this._client]) {
-    queryParameter['environment'] = _client.stackHeaders['environment'];
-    _urlPath = '/${_client.stack.apiVersion}/content_types';
+    queryParameter['environment'] = _client!.stackHeaders!['environment'];
+    _urlPath = '/${_client!.stack!.apiVersion}/content_types';
   }
 
   /// This call returns comprehensive information of all the content types
@@ -27,12 +27,12 @@ class ContentTypeQuery extends BaseQuery {
   /// print(response);
   /// ```
   ///
-  Future<T> find<T, K>({Map<String, String> queryParams}) async {
+  Future<T?> find<T, K>({Map<String, String>? queryParams}) async {
     if (queryParams != null && queryParams.isNotEmpty) {
       queryParameter.addAll(queryParams);
     }
-    final uri = Uri.https(_client.stack.endpoint, _urlPath, queryParameter);
-    return _client.sendRequest<T, K>(uri);
+    final uri = Uri.https(_client!.stack!.endpoint!, _urlPath, queryParameter);
+    return _client!.sendRequest<T, K>(uri);
   }
 
   ///