diff --git a/README.md b/README.md
index b6c40f2..d48c923 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Add this to your package's `pubspec.yaml` file:
 
 ```yml
 dependencies:
-  appwrite: ^15.0.0
+  appwrite: ^15.0.1
 ```
 
 You can install packages from the command line:
diff --git a/lib/services/account.dart b/lib/services/account.dart
index 8c93223..262be7a 100644
--- a/lib/services/account.dart
+++ b/lib/services/account.dart
@@ -11,7 +11,7 @@ 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,
@@ -94,7 +94,7 @@ 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,
@@ -156,7 +156,7 @@ 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,
@@ -315,7 +315,7 @@ 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,
@@ -336,7 +336,7 @@ 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,
@@ -469,7 +469,7 @@ 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,
@@ -571,7 +571,7 @@ 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,
@@ -795,7 +795,7 @@ 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 5eaf1eb..eb3cdd3 100644
--- a/lib/services/databases.dart
+++ b/lib/services/databases.dart
@@ -20,7 +20,7 @@ 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,
@@ -36,6 +36,7 @@ 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,
@@ -82,7 +83,7 @@ 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,
diff --git a/lib/services/functions.dart b/lib/services/functions.dart
index f13323a..6017b64 100644
--- a/lib/services/functions.dart
+++ b/lib/services/functions.dart
@@ -23,7 +23,7 @@ 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,
@@ -85,7 +85,7 @@ 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/locale.dart b/lib/services/locale.dart
index 8b746d5..fbd04e4 100644
--- a/lib/services/locale.dart
+++ b/lib/services/locale.dart
@@ -17,7 +17,7 @@ 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,
@@ -36,7 +36,7 @@ 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,
@@ -55,7 +55,7 @@ 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,
@@ -74,7 +74,7 @@ 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,
@@ -93,7 +93,7 @@ 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,
@@ -112,7 +112,7 @@ 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,
@@ -132,7 +132,7 @@ 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,
@@ -151,7 +151,7 @@ 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/storage.dart b/lib/services/storage.dart
index 9f70e55..1ce98f4 100644
--- a/lib/services/storage.dart
+++ b/lib/services/storage.dart
@@ -22,7 +22,7 @@ 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,
@@ -101,7 +101,7 @@ 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 b8a7c30..2408962 100644
--- a/lib/services/teams.dart
+++ b/lib/services/teams.dart
@@ -16,7 +16,7 @@ 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,
@@ -62,7 +62,7 @@ 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,
@@ -132,7 +132,7 @@ 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,
@@ -213,7 +213,7 @@ 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,
@@ -319,7 +319,7 @@ 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/src/client_browser.dart b/lib/src/client_browser.dart
index d7c908f..028a3c4 100644
--- a/lib/src/client_browser.dart
+++ b/lib/src/client_browser.dart
@@ -40,7 +40,7 @@ class ClientBrowser extends ClientBase with ClientMixin {
       'x-sdk-name': 'Flutter',
       'x-sdk-platform': 'client',
       'x-sdk-language': 'flutter',
-      'x-sdk-version': '15.0.0',
+      'x-sdk-version': '15.0.1',
       'X-Appwrite-Response-Format': '1.6.0',
     };
 
@@ -94,15 +94,24 @@ 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;
     _endPointRealtime = endPoint
         .replaceFirst('https://', 'wss://')
         .replaceFirst('http://', 'ws://');
+
     return this;
   }
 
   @override
   ClientBrowser setEndPointRealtime(String endPoint) {
+    if (!endPoint.startsWith('ws://') && !endPoint.startsWith('wss://')) {
+      throw AppwriteException('Invalid realtime endpoint URL: $endPoint');
+    }
+
     _endPointRealtime = endPoint;
     return this;
   }
diff --git a/lib/src/client_io.dart b/lib/src/client_io.dart
index 11f3297..e3fe16c 100644
--- a/lib/src/client_io.dart
+++ b/lib/src/client_io.dart
@@ -59,7 +59,7 @@ class ClientIO extends ClientBase with ClientMixin {
       'x-sdk-name': 'Flutter',
       'x-sdk-platform': 'client',
       'x-sdk-language': 'flutter',
-      'x-sdk-version': '15.0.0',
+      'x-sdk-version': '15.0.1',
       'X-Appwrite-Response-Format': '1.6.0',
     };
 
@@ -124,15 +124,24 @@ 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;
     _endPointRealtime = endPoint
         .replaceFirst('https://', 'wss://')
         .replaceFirst('http://', 'ws://');
+
     return this;
   }
 
   @override
   ClientIO setEndPointRealtime(String endPoint) {
+    if (!endPoint.startsWith('ws://') && !endPoint.startsWith('wss://')) {
+      throw AppwriteException('Invalid realtime endpoint URL: $endPoint');
+    }
+
     _endPointRealtime = endPoint;
     return this;
   }
diff --git a/lib/src/enums/credit_card.dart b/lib/src/enums/credit_card.dart
index 3a6b256..1bae5c8 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/o_auth_provider.dart b/lib/src/enums/o_auth_provider.dart
index 2bc1a82..383e45b 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 2d8f32b..dc41b21 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: appwrite
-version: 15.0.0
+version: 15.0.1
 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-flutter