ChiragAgg5k · Oct 15, 2026 · Oct 14, 2026 · Oct 14, 2026 · Oct 14, 2026 · Oct 14, 2026
diff --git a/mock-server/app/http.php b/mock-server/app/http.php
@@ -878,6 +878,24 @@
         $response->json(['enabled' => false, 'verified' => null, 'scopes' => ['read', 'write'], 'settings' => new \stdClass()]);
     });
 
+App::get('/v1/mock/tests/general/preset/settings')
+    ->desc('Get Preset Settings')
+    ->groups(['mock'])
+    ->label('scope', 'public')
+    ->inject('response')
+    ->action(function (UtopiaSwooleResponse $response) {
+        $response->setContentType('application/json')->send('{}');
+    });
+
+App::get('/v1/mock/tests/general/preset/profile')
+    ->desc('Get Preset Profile')
+    ->groups(['mock'])
+    ->label('scope', 'public')
+    ->inject('response')
+    ->action(function (UtopiaSwooleResponse $response) {
+        $response->setContentType('application/json')->send('{}');
+    });
+
 App::get('/v1/mock/tests/general/presets')
     ->desc('List Presets')
     ->groups(['mock'])

diff --git a/src/SDK/Language/Dart.php b/src/SDK/Language/Dart.php
@@ -599,13 +599,13 @@ public function getFilters(): array
                 $resolveKey = function ($value) use ($enumValues, $enumKeys): string {
                     $index = array_search($value, $enumValues, true);
                     if ($index !== false && isset($enumKeys[$index]) && $enumKeys[$index] !== '') {
-                        return $this->toCamelCase($enumKeys[$index]);
+                        return $this->escapeKeyword($this->toCamelCase($enumKeys[$index]));
                     }
                     if ($index !== false && isset($enumValues[$index])) {
-                        return $this->toCamelCase($enumValues[$index]);
+                        return $this->escapeKeyword($this->toCamelCase($enumValues[$index]));
                     }
                     $fallback = $enumKeys[0] ?? $enumValues[0] ?? $value;
-                    return $this->toCamelCase((string)$fallback);
+                    return $this->escapeKeyword($this->toCamelCase((string)$fallback));
                 };
 
                 if ($isArray) {

diff --git a/src/SDK/Language/Python.php b/src/SDK/Language/Python.php
@@ -702,6 +702,17 @@ protected function toPythonValue(mixed $value, int $indent = 8): string
         return \is_string($json) ? $json : 'None';
     }
 
+    /**
+     * A map field's `{}` default decodes to an empty PHP array, which would render as a list.
+     */
+    #[Override]
+    public function getModelDefault(Schema $property, bool $required): mixed
+    {
+        $default = parent::getModelDefault($property, $required);
+
+        return $default === [] && !($property instanceof ArraySchema) ? new stdClass() : $default;
+    }
+
     protected function toPythonLiteral(mixed $value): string
     {
         if (\is_object($value)) {

diff --git a/src/SDK/Language/Ruby.php b/src/SDK/Language/Ruby.php
@@ -263,7 +263,7 @@ public function getParamExample(Schema|Parameter $param, string $lang = ''): str
                 case self::TYPE_NUMBER:
                 case self::TYPE_INTEGER:
                 case self::TYPE_BOOLEAN:
-                    $output .= 'null';
+                    $output .= 'nil';
                     break;
                 case self::TYPE_STRING:
                     $output .= "''";
@@ -295,7 +295,7 @@ public function getParamExample(Schema|Parameter $param, string $lang = ''): str
                     $output .= ($example) ? 'true' : 'false';
                     break;
                 case self::TYPE_STRING:
-                    $output .= "'{$example}'";
+                    $output .= "'" . \addcslashes((string) $example, "'\\") . "'";
                     break;
                 case self::TYPE_FILE:
                     $output .= "InputFile.from_path('dir/file.png')";
@@ -327,7 +327,9 @@ protected function jsonToHash(array $data, int $indent = 0): string
             } elseif (is_bool($node)) {
                 $value = $node ? 'true' : 'false';
             } elseif (is_string($node)) {
-                $value = '"' . $node . '"';
+                $value = "'" . \addcslashes($node, "'\\") . "'";
+            } elseif (is_null($node)) {
+                $value = 'nil';
             } else {
                 $value = $node;
             }

diff --git a/templates/android/library/src/main/java/io/package/Topic.kt.twig b/templates/android/library/src/main/java/io/package/Topic.kt.twig
@@ -14,6 +14,7 @@ private fun levelsOf(levels: List<String>): List<String> {
         }
         require(!level.contains("+")) { "\"$level\" contains \"+\", not allowed in a topic" }
         require(!level.contains("#")) { "\"$level\" contains \"#\", not allowed in a topic" }
+        require(!level.contains('\u0000')) { "level at index $index contains a NUL character" }
     }
     return levels.toList()
 }

diff --git a/templates/dart/docs/example.md.twig b/templates/dart/docs/example.md.twig
@@ -32,7 +32,7 @@ Client client = Client()
 
 {{ service.name | caseUcfirst }} {{ service.name | caseCamel }} = {{service.name | caseUcfirst}}(client);
 
-{% if method.method.value != 'delete' and (method | methodType) != 'webAuth' %}{% if (method | methodType) == 'location' %}Uint8List{% elseif (method | getValidResponseModels)|length > 1 %}dynamic{% else %}models.{{ (method | responseModel) | caseUcfirst | overrideIdentifier }}{% endif %} result = {% endif %}await {{ service.name | caseCamel }}.{{ (method | methodName) | caseCamel }}({% if (method | parameters('all')) | length == 0 %});{% endif %}
+{% if method.method.value != 'delete' and (method | methodType) != 'webAuth' %}{% if (method | methodType) == 'location' %}Uint8List{% elseif (method | textResponse) %}String{% elseif (method | getValidResponseModels)|length > 1 %}dynamic{% else %}models.{{ (method | responseModel) | caseUcfirst | overrideIdentifier }}{% endif %} result = {% endif %}await {{ service.name | caseCamel }}.{{ (method | methodName) | caseCamel }}({% if (method | parameters('all')) | length == 0 %});{% endif %}
 
     {%~ for parameter in (method | parameters('all')) %}
     {{ parameter.name | caseCamel | overrideIdentifier }}: {% if (parameter | enumValues) | length > 0 %}{{ parameter | enumExample }}{% else %}{{ parameter | paramExample | replace({'<field-name>': (parameter.name | caseCamel) }) | raw }}{% endif %},{% if not parameter.required %} // (optional){% endif %}

diff --git a/templates/dart/lib/src/models/model.dart.twig b/templates/dart/lib/src/models/model.dart.twig
@@ -50,7 +50,7 @@ class {{ definitionName | caseUcfirst | overrideIdentifier }} implements Model {
 {% if not (property | schemaRequired) %}            )
           : null{% else %}      ){% endif %}{% else %}{% if not (property | schemaRequired) %}map['{{ propertyName | escapeDollarSign }}'] != null
           ? {% endif %}{{ modelName }}.fromMap(
-{% if not (property | schemaRequired) %}              {% else %}        {% endif %}map['{{ propertyName | escapeDollarSign }}'],
+{% if not (property | schemaRequired) %}              {% else %}        {% endif %}map['{{ propertyName | escapeDollarSign }}']{% if property | schemaRequired %} ?? <String, dynamic>{}{% endif %},
 {% if not (property | schemaRequired) %}            )
           : null{% else %}      ){% endif %}{% endif %}{% elseif property | usesEnumType %}{% set enumName = (property | enumName) %}{% if property | arraySchema %}{% if not (property | schemaRequired) %}map['{{ propertyName | escapeDollarSign }}'] != null
           ? {% endif %}List<enums.{{ enumName | caseUcfirst }}>.from(

diff --git a/templates/dart/lib/topic.dart.twig b/templates/dart/lib/topic.dart.twig
@@ -47,6 +47,9 @@ List<String> _topicLevelsOf(List<String> levels) {
     if (level.contains('#')) {
       throw ArgumentError('"$level" contains "#", not allowed in a topic');
     }
+    if (level.contains('\u0000')) {
+      throw ArgumentError('level at index $index contains a NUL character');
+    }
   }
   return List.unmodifiable(levels);
 }
diff --git a/templates/dotnet/Package/Topic.cs.twig b/templates/dotnet/Package/Topic.cs.twig
@@ -71,6 +71,10 @@ namespace {{ spec.info.title | caseUcfirst }}
                 {
                     throw new ArgumentException($"\"{level}\" contains \"#\", not allowed in a topic");
                 }
+                if (level.Contains('\0'))
+                {
+                    throw new ArgumentException($"level at index {index} contains a NUL character");
+                }
             }
 
             return list;

diff --git a/templates/flutter/docs/example.md.twig b/templates/flutter/docs/example.md.twig
@@ -62,7 +62,7 @@ FutureBuilder<Uint8List>(
     },
 );
 {% else %}
-{% if method.method.value != 'delete' and (method | methodType) != 'webAuth' %}{% if (method | methodType) == 'location' %}Uint8List{% elseif (method | getValidResponseModels)|length > 1 %}dynamic{% else %}models.{{ (method | responseModel) | caseUcfirst | overrideIdentifier }}{% endif %} result = {% endif %}await {{ service.name | caseCamel }}.{{ (method | methodName) | caseCamel }}({% if (method | parameters('all')) | length == 0 %});{% endif %}
+{% if method.method.value != 'delete' and (method | methodType) != 'webAuth' %}{% if (method | methodType) == 'location' %}Uint8List{% elseif (method | textResponse) %}String{% elseif (method | getValidResponseModels)|length > 1 %}dynamic{% else %}models.{{ (method | responseModel) | caseUcfirst | overrideIdentifier }}{% endif %} result = {% endif %}await {{ service.name | caseCamel }}.{{ (method | methodName) | caseCamel }}({% if (method | parameters('all')) | length == 0 %});{% endif %}
 
     {%~ for parameter in (method | parameters('all')) %}
     {{ parameter.name | caseCamel | overrideIdentifier}}: {% if (parameter | enumValues) | length > 0%}{{ parameter | enumExample }}{% else %}{{ parameter | paramExample | replace({'<field-name>': (parameter.name | caseCamel) }) | raw }}{% endif %},{% if not parameter.required %} // optional{% endif %}

diff --git a/templates/go/topic.go.twig b/templates/go/topic.go.twig
@@ -64,6 +64,9 @@ func levelsOf(levels []string) []string {
 		if strings.Contains(level, "#") {
 			panic(fmt.Sprintf("\"%s\" contains \"#\", not allowed in a topic", level))
 		}
+		if strings.Contains(level, "\x00") {
+			panic(fmt.Sprintf("level at index %d contains a NUL character", index))
+		}
 	}
 	return append([]string(nil), levels...)
 }
diff --git a/templates/kotlin/src/main/kotlin/io/appwrite/Topic.kt.twig b/templates/kotlin/src/main/kotlin/io/appwrite/Topic.kt.twig
@@ -14,6 +14,7 @@ private fun levelsOf(levels: List<String>): List<String> {
         }
         require(!level.contains("+")) { "\"$level\" contains \"+\", not allowed in a topic" }
         require(!level.contains("#")) { "\"$level\" contains \"#\", not allowed in a topic" }
+        require(!level.contains('\u0000')) { "level at index $index contains a NUL character" }
     }
     return levels.toList()
 }

diff --git a/templates/php/src/Topic.php.twig b/templates/php/src/Topic.php.twig
@@ -103,6 +103,9 @@ final readonly class Topic implements \Stringable
             if (\str_contains($level, '#')) {
                 throw new \InvalidArgumentException(\sprintf('"%s" contains "#", not allowed in a topic', $level));
             }
+            if (\str_contains($level, "\0")) {
+                throw new \InvalidArgumentException(\sprintf('level at index %d contains a NUL character', $index));
+            }
 
             $result[] = $level;
         }

diff --git a/templates/python/package/topic.py.twig b/templates/python/package/topic.py.twig
@@ -23,6 +23,8 @@ def _levels_of(levels):
             raise ValueError(f'"{level}" contains "+", not allowed in a topic')
         if "#" in level:
             raise ValueError(f'"{level}" contains "#", not allowed in a topic')
+        if "\0" in level:
+            raise ValueError(f"level at index {index} contains a NUL character")
     return tuple(levels)
 
 

diff --git a/templates/ruby/lib/container/topic.rb.twig b/templates/ruby/lib/container/topic.rb.twig
@@ -43,6 +43,7 @@ module {{spec.info.title | caseUcfirst }}
                 end
                 raise ArgumentError, "\"#{level}\" contains \"+\", not allowed in a topic" if level.include?('+')
                 raise ArgumentError, "\"#{level}\" contains \"#\", not allowed in a topic" if level.include?('#')
+                raise ArgumentError, "level at index #{index} contains a NUL character" if level.include?("\0")
             end
 
             levels.dup

diff --git a/templates/rust/src/topic.rs.twig b/templates/rust/src/topic.rs.twig
@@ -103,6 +103,12 @@ fn levels_of<S: AsRef<str>>(levels: &[S]) -> Result<Vec<String>, TopicError> {
                     level
                 )));
             }
+            if level.contains('\0') {
+                return Err(TopicError::new(format!(
+                    "level at index {} contains a NUL character",
+                    index
+                )));
+            }
             Ok(level.to_string())
         })
         .collect()

diff --git a/templates/rust/tests/tests.rs b/templates/rust/tests/tests.rs
@@ -407,6 +407,7 @@ fn test_topic_helpers() {
         ("slash", vec!["user/123"]),
         ("plus", vec!["user", "a+b"]),
         ("hash", vec!["user", "#"]),
+        ("nul", vec!["user", "a\0b"]),
     ];
     for (name, levels) in cases {
         match topic::path(&levels) {

diff --git a/templates/swift/Sources/Topic.swift.twig b/templates/swift/Sources/Topic.swift.twig
@@ -42,6 +42,9 @@ private func levelsOf(_ levels: [String]) throws -> [String] {
         if level.contains("#") {
             throw TopicError("\"\(level)\" contains \"#\", not allowed in a topic")
         }
+        if level.contains("\0") {
+            throw TopicError("level at index \(index) contains a NUL character")
+        }
     }
     return levels
 }

diff --git a/templates/web/src/topic.ts.twig b/templates/web/src/topic.ts.twig
@@ -34,6 +34,9 @@ function levelsOf(levels: unknown): string[] {
         if (level.includes('#')) {
             throw new Error(`"${level}" contains "#", not allowed in a topic`);
         }
+        if (level.includes('\0')) {
+            throw new Error(`level at index ${index} contains a NUL character`);
+        }
         return level;
     });
 }

diff --git a/tests/e2e/Base.php b/tests/e2e/Base.php
@@ -130,6 +130,14 @@ abstract class Base extends TestCase
         'preset tier: PresetTier.FREE',
     ];
 
+    protected const MAP_MODEL_DEFAULT_RESPONSES = [
+        'preset settings: options=0',
+    ];
+
+    protected const NESTED_MODEL_DEFAULT_RESPONSES = [
+        'preset profile: prefs=0',
+    ];
+
     protected const OBJECT_ARRAY_RESPONSES = [
         'POST:/v1/mock/tests/general/documents:passed',
     ];
@@ -513,6 +521,7 @@ abstract class Base extends TestCase
         'Topic slash:passed',
         'Topic plus:passed',
         'Topic hash:passed',
+        'Topic nul:passed',
     ];
 
     protected const ADDITIONAL_PROPERTIES_RESPONSES = [

diff --git a/tests/e2e/DartBetaTest.php b/tests/e2e/DartBetaTest.php
@@ -52,6 +52,8 @@ final class DartBetaTest extends Base
         ...Base::MODEL_DEFAULT_RESPONSES,
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
+        ...Base::NESTED_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/DartStableTest.php b/tests/e2e/DartStableTest.php
@@ -52,6 +52,8 @@ final class DartStableTest extends Base
         ...Base::MODEL_DEFAULT_RESPONSES,
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
+        ...Base::NESTED_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/FlutterBetaTest.php b/tests/e2e/FlutterBetaTest.php
@@ -52,6 +52,8 @@ final class FlutterBetaTest extends Base
         ...Base::MODEL_DEFAULT_RESPONSES,
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
+        ...Base::NESTED_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::REALTIME_RESPONSES,
         ...Base::COOKIE_RESPONSES,

diff --git a/tests/e2e/FlutterStableTest.php b/tests/e2e/FlutterStableTest.php
@@ -72,6 +72,8 @@ final class FlutterStableTest extends Base
         ...Base::MODEL_DEFAULT_RESPONSES,
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
+        ...Base::NESTED_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::REALTIME_RESPONSES,
         ...Base::COOKIE_RESPONSES,

diff --git a/tests/e2e/Python310Test.php b/tests/e2e/Python310Test.php
@@ -53,6 +53,7 @@ final class Python310Test extends Base
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
         ...Base::PYTHON_MODEL_DEFAULT_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/Python311Test.php b/tests/e2e/Python311Test.php
@@ -53,6 +53,7 @@ final class Python311Test extends Base
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
         ...Base::PYTHON_MODEL_DEFAULT_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/Python312Test.php b/tests/e2e/Python312Test.php
@@ -53,6 +53,7 @@ final class Python312Test extends Base
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
         ...Base::PYTHON_MODEL_DEFAULT_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/Python313Test.php b/tests/e2e/Python313Test.php
@@ -53,6 +53,7 @@ final class Python313Test extends Base
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
         ...Base::PYTHON_MODEL_DEFAULT_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/Python39Test.php b/tests/e2e/Python39Test.php
@@ -53,6 +53,7 @@ final class Python39Test extends Base
         ...Base::NULLABLE_MODEL_RESPONSES,
         ...Base::ENUM_ARRAY_MODEL_RESPONSES,
         ...Base::PYTHON_MODEL_DEFAULT_RESPONSES,
+        ...Base::MAP_MODEL_DEFAULT_RESPONSES,
         ...Base::EXCEPTION_RESPONSES,
         ...Base::OAUTH_RESPONSES,
         ...Base::QUERY_HELPER_RESPONSES,

diff --git a/tests/e2e/languages/android/Tests.kt b/tests/e2e/languages/android/Tests.kt
@@ -525,6 +525,7 @@ class ServiceTest {
                 "slash" to listOf("user/123"),
                 "plus" to listOf("user", "a+b"),
                 "hash" to listOf("user", "#"),
+                "nul" to listOf("user", "a\u0000b"),
             )
             for ((name, levels) in topicErrorCases) {
                 try {

diff --git a/tests/e2e/languages/apple/Tests.swift b/tests/e2e/languages/apple/Tests.swift
@@ -499,6 +499,7 @@ class Tests: XCTestCase {
             ("slash", ["user/123"]),
             ("plus", ["user", "a+b"]),
             ("hash", ["user", "#"]),
+            ("nul", ["user", "a\u{0}b"]),
         ]
         for (name, levels) in topicCases {
             do {

diff --git a/tests/e2e/languages/dart/tests.dart b/tests/e2e/languages/dart/tests.dart
@@ -156,6 +156,8 @@ void main() async {
   print('empty presets: ${(await general.listEmptyPresets()).presets.length}');
   print('preset verified: ${preset.verified}');
   print('preset scopes: ${(preset.scopes ?? []).map((scope) => scope.value).join(',')}');
+  print('preset settings: options=${(await general.getPresetSettings()).options.length}');
+  print('preset profile: prefs=${(await general.getPresetProfile()).prefs.data.length}');
 
   try {
     await general.error400();
@@ -347,6 +349,7 @@ void main() async {
     'slash': ['user/123'],
     'plus': ['user', 'a+b'],
     'hash': ['user', '#'],
+    'nul': ['user', 'a\u0000b'],
   };
   topicCases.forEach((name, levels) {
     try {

diff --git a/tests/e2e/languages/dotnet/Tests.cs b/tests/e2e/languages/dotnet/Tests.cs
@@ -357,6 +357,7 @@ public async Task Test1()
                 ("slash", new[] { "user/123" }),
                 ("plus", new[] { "user", "a+b" }),
                 ("hash", new[] { "user", "#" }),
+                ("nul", new[] { "user", "a\0b" }),
             };
             foreach (var (name, levels) in topicCases)
             {

diff --git a/tests/e2e/languages/flutter/tests.dart b/tests/e2e/languages/flutter/tests.dart
@@ -228,6 +228,8 @@ void main() async {
   print('empty presets: ${(await general.listEmptyPresets()).presets.length}');
   print('preset verified: ${preset.verified}');
   print('preset scopes: ${(preset.scopes ?? []).map((scope) => scope.value).join(',')}');
+  print('preset settings: options=${(await general.getPresetSettings()).options.length}');
+  print('preset profile: prefs=${(await general.getPresetProfile()).prefs.data.length}');
 
   try {
     await general.error400();
@@ -494,6 +496,7 @@ void main() async {
     'slash': ['user/123'],
     'plus': ['user', 'a+b'],
     'hash': ['user', '#'],
+    'nul': ['user', 'a\u0000b'],
   };
   topicCases.forEach((name, levels) {
     try {

diff --git a/tests/e2e/languages/go-v2/tests.go b/tests/e2e/languages/go-v2/tests.go
@@ -482,6 +482,7 @@ func testTopicHelpers() {
 		{"slash", []string{"user/123"}},
 		{"plus", []string{"user", "a+b"}},
 		{"hash", []string{"user", "#"}},
+		{"nul", []string{"user", "a\x00b"}},
 	}
 	for _, c := range cases {
 		if topicPanics(c.levels) {