diff --git a/README.md b/README.md
index e28d7035..555b377c 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Add this to your package's `pubspec.yaml` file:
 
 ```yml
 dependencies:
-  dart_appwrite: ^14.0.0
+  dart_appwrite: ^15.0.0
 ```
 
 You can install packages from the command line:
diff --git a/docs/examples/databases/update-float-attribute.md b/docs/examples/databases/update-float-attribute.md
index 8e023bc4..b85ebf7a 100644
--- a/docs/examples/databases/update-float-attribute.md
+++ b/docs/examples/databases/update-float-attribute.md
@@ -12,8 +12,8 @@ AttributeFloat result = await databases.updateFloatAttribute(
     collectionId: '<COLLECTION_ID>',
     key: '',
     xrequired: false,
-    min: 0,
-    max: 0,
     xdefault: 0,
+    min: 0, // (optional)
+    max: 0, // (optional)
     newKey: '', // (optional)
 );
diff --git a/docs/examples/databases/update-integer-attribute.md b/docs/examples/databases/update-integer-attribute.md
index 1dac743a..486c1927 100644
--- a/docs/examples/databases/update-integer-attribute.md
+++ b/docs/examples/databases/update-integer-attribute.md
@@ -12,8 +12,8 @@ AttributeInteger result = await databases.updateIntegerAttribute(
     collectionId: '<COLLECTION_ID>',
     key: '',
     xrequired: false,
-    min: 0,
-    max: 0,
     xdefault: 0,
+    min: 0, // (optional)
+    max: 0, // (optional)
     newKey: '', // (optional)
 );
diff --git a/docs/examples/health/get-queue-usage-dump.md b/docs/examples/health/get-queue-stats-resources.md
similarity index 84%
rename from docs/examples/health/get-queue-usage-dump.md
rename to docs/examples/health/get-queue-stats-resources.md
index 8c01b68c..d0b443e3 100644
--- a/docs/examples/health/get-queue-usage-dump.md
+++ b/docs/examples/health/get-queue-stats-resources.md
@@ -7,6 +7,6 @@ Client client = Client()
 
 Health health = Health(client);
 
-HealthQueue result = await health.getQueueUsageDump(
+HealthQueue result = await health.getQueueStatsResources(
     threshold: 0, // (optional)
 );
diff --git a/docs/examples/health/get-queue.md b/docs/examples/health/get-queue.md
deleted file mode 100644
index c68e15ef..00000000
--- a/docs/examples/health/get-queue.md
+++ /dev/null
@@ -1,10 +0,0 @@
-import 'package:dart_appwrite/dart_appwrite.dart';
-
-Client client = Client()
-    .setEndpoint('https://cloud.appwrite.io/v1') // Your API Endpoint
-    .setProject('<YOUR_PROJECT_ID>') // Your project ID
-    .setKey('<YOUR_API_KEY>'); // Your secret API key
-
-Health health = Health(client);
-
-HealthStatus result = await health.getQueue();
diff --git a/lib/services/account.dart b/lib/services/account.dart
index f4fc054e..90e1f03e 100644
--- a/lib/services/account.dart
+++ b/lib/services/account.dart
@@ -10,7 +10,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -93,7 +93,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -155,7 +155,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -314,7 +314,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -335,7 +335,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -468,7 +468,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -570,7 +570,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -733,7 +733,7 @@ class Account extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/databases.dart b/lib/services/databases.dart
index c9cb75b5..6727adbb 100644
--- a/lib/services/databases.dart
+++ b/lib/services/databases.dart
@@ -18,7 +18,7 @@ class Databases extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -67,7 +67,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -143,7 +143,7 @@ class Databases extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -204,7 +204,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -285,7 +285,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -622,9 +622,9 @@ class Databases extends Service {
     required String collectionId,
     required String key,
     required bool xrequired,
-    required double min,
-    required double max,
     required double? xdefault,
+    double? min,
+    double? max,
     String? newKey,
   }) async {
     final String apiPath =
@@ -700,9 +700,9 @@ class Databases extends Service {
     required String collectionId,
     required String key,
     required bool xrequired,
-    required int min,
-    required int max,
     required int? xdefault,
+    int? min,
+    int? max,
     String? newKey,
   }) async {
     final String apiPath =
@@ -997,7 +997,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1082,7 +1082,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1098,6 +1098,7 @@ class Databases extends Service {
   /// collection resource using either a [server
   /// integration](https://appwrite.io/docs/server/databases#databasesCreateCollection)
   /// API or directly from your database console.
+  ///
   Future<models.Document> createDocument({
     required String databaseId,
     required String collectionId,
@@ -1144,7 +1145,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1227,7 +1228,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1288,7 +1289,7 @@ class Databases extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/functions.dart b/lib/services/functions.dart
index b019e5c8..60a5def9 100644
--- a/lib/services/functions.dart
+++ b/lib/services/functions.dart
@@ -18,7 +18,7 @@ class Functions extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -103,7 +103,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -122,7 +122,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -143,7 +143,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -251,7 +251,7 @@ class Functions extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -322,7 +322,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -481,7 +481,7 @@ class Functions extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -543,7 +543,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -590,7 +590,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -639,7 +639,7 @@ class Functions extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/health.dart b/lib/services/health.dart
index 2e5a61d5..5250c91d 100644
--- a/lib/services/health.dart
+++ b/lib/services/health.dart
@@ -11,7 +11,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -29,7 +29,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -48,7 +48,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -66,7 +66,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'domain': domain};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -84,7 +84,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -102,26 +102,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
-
-    final res = await client.call(
-      HttpMethod.get,
-      path: apiPath,
-      params: apiParams,
-      headers: apiHeaders,
-    );
-
-    return models.HealthStatus.fromMap(res.data);
-  }
-
-  /// Check the Appwrite queue messaging servers are up and connection is
-  /// successful.
-  Future<models.HealthStatus> getQueue() async {
-    final String apiPath = '/health/queue';
-
-    final Map<String, dynamic> apiParams = {};
-
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -140,7 +121,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -160,7 +141,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -185,7 +166,7 @@ class Health extends Service {
       'threshold': threshold,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -204,7 +185,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -229,7 +210,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -248,7 +229,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -267,7 +248,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -286,7 +267,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -305,7 +286,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -324,7 +305,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -337,13 +318,13 @@ class Health extends Service {
   }
 
   /// Get the number of metrics that are waiting to be processed in the Appwrite
-  /// internal queue server.
-  Future<models.HealthQueue> getQueueUsage({int? threshold}) async {
-    final String apiPath = '/health/queue/usage';
+  /// stats resources queue.
+  Future<models.HealthQueue> getQueueStatsResources({int? threshold}) async {
+    final String apiPath = '/health/queue/stats-resources';
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -355,14 +336,14 @@ class Health extends Service {
     return models.HealthQueue.fromMap(res.data);
   }
 
-  /// Get the number of projects containing metrics that are waiting to be
-  /// processed in the Appwrite internal queue server.
-  Future<models.HealthQueue> getQueueUsageDump({int? threshold}) async {
-    final String apiPath = '/health/queue/usage-dump';
+  /// Get the number of metrics that are waiting to be processed in the Appwrite
+  /// internal queue server.
+  Future<models.HealthQueue> getQueueUsage({int? threshold}) async {
+    final String apiPath = '/health/queue/stats-usage';
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -381,7 +362,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {'threshold': threshold};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -399,7 +380,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -417,7 +398,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -441,7 +422,7 @@ class Health extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/locale.dart b/lib/services/locale.dart
index 6ca7a974..4d3cc3e0 100644
--- a/lib/services/locale.dart
+++ b/lib/services/locale.dart
@@ -16,7 +16,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -35,7 +35,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -54,7 +54,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -73,7 +73,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -92,7 +92,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -111,7 +111,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -131,7 +131,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -150,7 +150,7 @@ class Locale extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/messaging.dart b/lib/services/messaging.dart
index 964fdb19..afe3ee86 100644
--- a/lib/services/messaging.dart
+++ b/lib/services/messaging.dart
@@ -17,7 +17,7 @@ class Messaging extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -326,7 +326,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -372,7 +372,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -396,7 +396,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -420,7 +420,7 @@ class Messaging extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1146,7 +1146,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1191,7 +1191,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1213,7 +1213,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1237,7 +1237,7 @@ class Messaging extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1285,7 +1285,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1359,7 +1359,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1387,7 +1387,7 @@ class Messaging extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -1440,7 +1440,7 @@ class Messaging extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/storage.dart b/lib/services/storage.dart
index acf19ed2..37641215 100644
--- a/lib/services/storage.dart
+++ b/lib/services/storage.dart
@@ -17,7 +17,7 @@ class Storage extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -79,7 +79,7 @@ class Storage extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -171,7 +171,7 @@ class Storage extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -250,7 +250,7 @@ class Storage extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/teams.dart b/lib/services/teams.dart
index 40baeff1..5fd59641 100644
--- a/lib/services/teams.dart
+++ b/lib/services/teams.dart
@@ -15,7 +15,7 @@ class Teams extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -61,7 +61,7 @@ class Teams extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -131,7 +131,7 @@ class Teams extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -212,7 +212,7 @@ class Teams extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -318,7 +318,7 @@ class Teams extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/services/users.dart b/lib/services/users.dart
index 21c5956c..f4d31233 100644
--- a/lib/services/users.dart
+++ b/lib/services/users.dart
@@ -14,7 +14,7 @@ class Users extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -130,7 +130,7 @@ class Users extends Service {
       'search': search,
     };
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -343,7 +343,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -473,7 +473,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -496,7 +496,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -561,7 +561,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -587,7 +587,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -732,7 +732,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -779,7 +779,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -898,7 +898,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {'queries': queries};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
@@ -955,7 +955,7 @@ class Users extends Service {
 
     final Map<String, dynamic> apiParams = {};
 
-    final Map<String, String> apiHeaders = {'content-type': 'application/json'};
+    final Map<String, String> apiHeaders = {};
 
     final res = await client.call(
       HttpMethod.get,
diff --git a/lib/src/client_browser.dart b/lib/src/client_browser.dart
index e9600bb0..c473ab61 100644
--- a/lib/src/client_browser.dart
+++ b/lib/src/client_browser.dart
@@ -30,7 +30,7 @@ class ClientBrowser extends ClientBase with ClientMixin {
       'x-sdk-name': 'Dart',
       'x-sdk-platform': 'server',
       'x-sdk-language': 'dart',
-      'x-sdk-version': '14.0.0',
+      'x-sdk-version': '15.0.0',
       'X-Appwrite-Response-Format': '1.6.0',
     };
 
@@ -99,6 +99,10 @@ class ClientBrowser extends ClientBase with ClientMixin {
 
   @override
   ClientBrowser setEndpoint(String endPoint) {
+    if (!endPoint.startsWith('http://') && !endPoint.startsWith('https://')) {
+      throw AppwriteException('Invalid endpoint URL: $endPoint');
+    }
+
     _endPoint = endPoint;
     return this;
   }
diff --git a/lib/src/client_io.dart b/lib/src/client_io.dart
index 8ff186ae..0496f7e7 100644
--- a/lib/src/client_io.dart
+++ b/lib/src/client_io.dart
@@ -37,9 +37,9 @@ class ClientIO extends ClientBase with ClientMixin {
       'x-sdk-name': 'Dart',
       'x-sdk-platform': 'server',
       'x-sdk-language': 'dart',
-      'x-sdk-version': '14.0.0',
+      'x-sdk-version': '15.0.0',
       'user-agent':
-          'AppwriteDartSDK/14.0.0 (${Platform.operatingSystem}; ${Platform.operatingSystemVersion})',
+          'AppwriteDartSDK/15.0.0 (${Platform.operatingSystem}; ${Platform.operatingSystemVersion})',
       'X-Appwrite-Response-Format': '1.6.0',
     };
 
@@ -110,6 +110,10 @@ class ClientIO extends ClientBase with ClientMixin {
 
   @override
   ClientIO setEndpoint(String endPoint) {
+    if (!endPoint.startsWith('http://') && !endPoint.startsWith('https://')) {
+      throw AppwriteException('Invalid endpoint URL: $endPoint');
+    }
+
     _endPoint = endPoint;
     return this;
   }
diff --git a/lib/src/enums/credit_card.dart b/lib/src/enums/credit_card.dart
index 3a6b256a..1bae5c8a 100644
--- a/lib/src/enums/credit_card.dart
+++ b/lib/src/enums/credit_card.dart
@@ -16,7 +16,8 @@ enum CreditCard {
   unionChinaPay(value: 'union-china-pay'),
   visa(value: 'visa'),
   mIR(value: 'mir'),
-  maestro(value: 'maestro');
+  maestro(value: 'maestro'),
+  rupay(value: 'rupay');
 
   const CreditCard({required this.value});
 
diff --git a/lib/src/enums/name.dart b/lib/src/enums/name.dart
index cb35c288..74823feb 100644
--- a/lib/src/enums/name.dart
+++ b/lib/src/enums/name.dart
@@ -6,8 +6,8 @@ enum Name {
   v1Audits(value: 'v1-audits'),
   v1Mails(value: 'v1-mails'),
   v1Functions(value: 'v1-functions'),
-  v1Usage(value: 'v1-usage'),
-  v1UsageDump(value: 'v1-usage-dump'),
+  v1StatsResources(value: 'v1-stats-resources'),
+  v1StatsUsage(value: 'v1-stats-usage'),
   v1Webhooks(value: 'v1-webhooks'),
   v1Certificates(value: 'v1-certificates'),
   v1Builds(value: 'v1-builds'),
diff --git a/lib/src/enums/o_auth_provider.dart b/lib/src/enums/o_auth_provider.dart
index 2bc1a82a..383e45b1 100644
--- a/lib/src/enums/o_auth_provider.dart
+++ b/lib/src/enums/o_auth_provider.dart
@@ -15,6 +15,7 @@ enum OAuthProvider {
   dropbox(value: 'dropbox'),
   etsy(value: 'etsy'),
   facebook(value: 'facebook'),
+  figma(value: 'figma'),
   github(value: 'github'),
   gitlab(value: 'gitlab'),
   google(value: 'google'),
diff --git a/pubspec.yaml b/pubspec.yaml
index b7630ff6..ff0e463e 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: dart_appwrite
-version: 14.0.0
+version: 15.0.0
 description: Appwrite is an open-source self-hosted backend server that abstract and simplify complex and repetitive development tasks behind a very simple REST API
 homepage: https://appwrite.io
 repository: https://github.com/appwrite/sdk-for-dart
diff --git a/test/services/databases_test.dart b/test/services/databases_test.dart
index 2bbe5170..176d50a6 100644
--- a/test/services/databases_test.dart
+++ b/test/services/databases_test.dart
@@ -552,8 +552,6 @@ void main() {
                 collectionId: '<COLLECTION_ID>',
                 key: '',
                 xrequired: true,
-                min: 1.0,
-                max: 1.0,
                 xdefault: 1.0,
             );
             expect(response, isA<models.AttributeFloat>());
@@ -607,8 +605,6 @@ void main() {
                 collectionId: '<COLLECTION_ID>',
                 key: '',
                 xrequired: true,
-                min: 1,
-                max: 1,
                 xdefault: 1,
             );
             expect(response, isA<models.AttributeInteger>());
diff --git a/test/services/health_test.dart b/test/services/health_test.dart
index ecbc178a..6a1dae9e 100644
--- a/test/services/health_test.dart
+++ b/test/services/health_test.dart
@@ -164,24 +164,6 @@ void main() {
 
         });
 
-        test('test method getQueue()', () async {
-            final Map<String, dynamic> data = {
-                'name': 'database',
-                'ping': 128,
-                'status': 'pass',};
-
-
-            when(client.call(
-                HttpMethod.get,
-            )).thenAnswer((_) async => Response(data: data));
-
-
-            final response = await health.getQueue(
-            );
-            expect(response, isA<models.HealthStatus>());
-
-        });
-
         test('test method getQueueBuilds()', () async {
             final Map<String, dynamic> data = {
                 'size': 8,};
@@ -343,7 +325,7 @@ void main() {
 
         });
 
-        test('test method getQueueUsage()', () async {
+        test('test method getQueueStatsResources()', () async {
             final Map<String, dynamic> data = {
                 'size': 8,};
 
@@ -353,13 +335,13 @@ void main() {
             )).thenAnswer((_) async => Response(data: data));
 
 
-            final response = await health.getQueueUsage(
+            final response = await health.getQueueStatsResources(
             );
             expect(response, isA<models.HealthQueue>());
 
         });
 
-        test('test method getQueueUsageDump()', () async {
+        test('test method getQueueUsage()', () async {
             final Map<String, dynamic> data = {
                 'size': 8,};
 
@@ -369,7 +351,7 @@ void main() {
             )).thenAnswer((_) async => Response(data: data));
 
 
-            final response = await health.getQueueUsageDump(
+            final response = await health.getQueueUsage(
             );
             expect(response, isA<models.HealthQueue>());