diff --git a/composer.json b/composer.json
index dcd893df01..607109142f 100644
--- a/composer.json
+++ b/composer.json
@@ -53,6 +53,7 @@
         "ibexa/user": "~4.6.0@dev",
         "ibexa/fieldtype-richtext": "~4.6.0@dev",
         "ibexa/rest": "~4.6.0@dev",
+        "ibexa/polyfill-php82": "^1.0",
         "ibexa/search": "~4.6.x-dev",
         "babdev/pagerfanta-bundle": "^2.1",
         "knplabs/knp-menu-bundle": "^3.0",
diff --git a/src/bundle/Controller/Content/ContentTreeController.php b/src/bundle/Controller/Content/ContentTreeController.php
index 4998774152..29a10e06e6 100644
--- a/src/bundle/Controller/Content/ContentTreeController.php
+++ b/src/bundle/Controller/Content/ContentTreeController.php
@@ -77,7 +77,8 @@ public function loadChildrenAction(
         Request $request,
         int $parentLocationId,
         int $limit,
-        int $offset
+        int $offset,
+        Query\Criterion $filter
     ): Node {
         $location = $this->locationService->loadLocation($parentLocationId);
         $loadSubtreeRequestNode = new LoadSubtreeRequestNode($parentLocationId, $limit, $offset);
@@ -91,7 +92,8 @@ public function loadChildrenAction(
             true,
             0,
             $sortClause,
-            $sortOrder
+            $sortOrder,
+            $filter
         );
     }
 
diff --git a/src/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolver.php b/src/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolver.php
new file mode 100644
index 0000000000..2f42f3e7d9
--- /dev/null
+++ b/src/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolver.php
@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Bundle\AdminUi\ControllerArgumentResolver;
+
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion\LogicalAnd;
+use Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\CriterionProcessorInterface;
+use function Ibexa\PolyfillPhp82\iterator_to_array;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
+use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
+
+/**
+ * @phpstan-import-type TCriterionProcessor from \Ibexa\AdminUi\REST\Input\Parser\CriterionProcessor
+ */
+final class ContentTreeChildrenQueryArgumentResolver implements ArgumentValueResolverInterface
+{
+    /** @phpstan-var TCriterionProcessor */
+    private CriterionProcessorInterface $criterionProcessor;
+
+    /**
+     * @phpstan-param TCriterionProcessor $criterionProcessor
+     */
+    public function __construct(
+        CriterionProcessorInterface $criterionProcessor
+    ) {
+        $this->criterionProcessor = $criterionProcessor;
+    }
+
+    public function supports(Request $request, ArgumentMetadata $argument): bool
+    {
+        return Criterion::class === $argument->getType()
+            && 'filter' === $argument->getName();
+    }
+
+    /**
+     * @return iterable<\Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion>
+     *
+     * @throws \Ibexa\Contracts\Core\Repository\Exceptions\InvalidArgumentException
+     */
+    public function resolve(Request $request, ArgumentMetadata $argument): iterable
+    {
+        yield new LogicalAnd($this->processFilterQueryCriteria($request));
+    }
+
+    /**
+     * @return array<\Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion>
+     */
+    private function processFilterQueryCriteria(Request $request): array
+    {
+        if (!$request->query->has('filter')) {
+            return [];
+        }
+
+        /** @var array<string, array<mixed>> $criteriaData */
+        $criteriaData = $request->query->all('filter');
+        if (empty($criteriaData)) {
+            return [];
+        }
+
+        $criteria = $this->criterionProcessor->processCriteria($criteriaData);
+
+        return iterator_to_array($criteria);
+    }
+}
diff --git a/src/bundle/Resources/config/services/controller_argument_resolvers.yaml b/src/bundle/Resources/config/services/controller_argument_resolvers.yaml
index c7f362e61d..a78ab2f092 100644
--- a/src/bundle/Resources/config/services/controller_argument_resolvers.yaml
+++ b/src/bundle/Resources/config/services/controller_argument_resolvers.yaml
@@ -7,3 +7,9 @@ services:
     Ibexa\Bundle\AdminUi\ControllerArgumentResolver\UniversalDiscoveryRequestQueryArgumentResolver:
         tags:
             - { name: controller.argument_value_resolver, priority: 50 }
+
+    Ibexa\Bundle\AdminUi\ControllerArgumentResolver\ContentTreeChildrenQueryArgumentResolver:
+        arguments:
+            $criterionProcessor: '@Ibexa\AdminUi\REST\Input\Parser\CriterionProcessor'
+        tags:
+            - { name: controller.argument_value_resolver, priority: 50 }
diff --git a/src/bundle/Resources/config/services/rest.yaml b/src/bundle/Resources/config/services/rest.yaml
index 334b6831de..3bfbca3019 100644
--- a/src/bundle/Resources/config/services/rest.yaml
+++ b/src/bundle/Resources/config/services/rest.yaml
@@ -92,3 +92,7 @@ services:
             $applicationConfigRestGeneratorRegistry: '@Ibexa\Contracts\AdminUi\REST\ApplicationConfigRestGeneratorRegistryInterface'
         tags:
             - { name: ibexa.rest.output.value_object.visitor, type: Ibexa\AdminUi\REST\Value\ApplicationConfig }
+
+    Ibexa\AdminUi\REST\Input\Parser\CriterionProcessor:
+        parent: Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\BaseCriterionProcessor
+
diff --git a/src/lib/REST/Input/Parser/CriterionProcessor.php b/src/lib/REST/Input/Parser/CriterionProcessor.php
new file mode 100644
index 0000000000..0505c6c1b9
--- /dev/null
+++ b/src/lib/REST/Input/Parser/CriterionProcessor.php
@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\AdminUi\REST\Input\Parser;
+
+use Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\BaseCriterionProcessor;
+
+/**
+ * @phpstan-type TCriterionProcessor \Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\CriterionProcessorInterface<
+ *     \Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion
+ * >
+ *
+ * @extends \Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\BaseCriterionProcessor<
+ *     \Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion
+ * >
+ *
+ * @internal
+ */
+final class CriterionProcessor extends BaseCriterionProcessor
+{
+    protected function getMediaTypePrefix(): string
+    {
+        return 'application/vnd.ibexa.api.internal.criterion';
+    }
+
+    protected function getParserInvalidCriterionMessage(string $criterionName): string
+    {
+        return "Invalid Criterion <$criterionName>";
+    }
+}
diff --git a/src/lib/REST/Output/ValueObjectVisitor/ContentTree/Node.php b/src/lib/REST/Output/ValueObjectVisitor/ContentTree/Node.php
index 41e666161f..f8d18f0bbb 100644
--- a/src/lib/REST/Output/ValueObjectVisitor/ContentTree/Node.php
+++ b/src/lib/REST/Output/ValueObjectVisitor/ContentTree/Node.php
@@ -49,10 +49,10 @@ public function visit(Visitor $visitor, Generator $generator, $data)
         $generator->startValueElement('contentTypeIdentifier', $data->contentTypeIdentifier);
         $generator->endValueElement('contentTypeIdentifier');
 
-        $generator->startValueElement('isContainer', $data->isContainer);
+        $generator->startValueElement('isContainer', $generator->serializeBool($data->isContainer));
         $generator->endValueElement('isContainer');
 
-        $generator->startValueElement('isInvisible', $data->isInvisible);
+        $generator->startValueElement('isInvisible', $generator->serializeBool($data->isInvisible));
         $generator->endValueElement('isInvisible');
 
         $generator->startValueElement('displayLimit', $data->displayLimit);
@@ -63,7 +63,7 @@ public function visit(Visitor $visitor, Generator $generator, $data)
 
         $generator->valueElement('reverseRelationsCount', $data->reverseRelationsCount);
 
-        $generator->valueElement('isBookmarked', $data->isBookmarked);
+        $generator->valueElement('isBookmarked', $generator->serializeBool($data->isBookmarked));
 
         $generator->startList('children');
 
diff --git a/tests/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolverTest.php b/tests/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolverTest.php
new file mode 100644
index 0000000000..0a65bdbfb8
--- /dev/null
+++ b/tests/bundle/ControllerArgumentResolver/ContentTreeChildrenQueryArgumentResolverTest.php
@@ -0,0 +1,213 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Tests\Bundle\AdminUi\ControllerArgumentResolver;
+
+use ArrayIterator;
+use Generator;
+use Ibexa\Bundle\AdminUi\ControllerArgumentResolver\ContentTreeChildrenQueryArgumentResolver;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion\ContentTypeIdentifier;
+use Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion\LogicalAnd;
+use Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\CriterionProcessorInterface;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
+use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
+use Traversable;
+
+/**
+ * @phpstan-type TCriterionProcessor \Ibexa\Contracts\Rest\Input\Parser\Query\Criterion\CriterionProcessorInterface<
+ *     \Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion
+ * >
+ *
+ * @covers \Ibexa\Bundle\AdminUi\ControllerArgumentResolver\ContentTreeChildrenQueryArgumentResolver
+ */
+final class ContentTreeChildrenQueryArgumentResolverTest extends TestCase
+{
+    private ArgumentValueResolverInterface $resolver;
+
+    /** @phpstan-var TCriterionProcessor&\PHPUnit\Framework\MockObject\MockObject */
+    private CriterionProcessorInterface $criterionProcessor;
+
+    protected function setUp(): void
+    {
+        $this->criterionProcessor = $this->createMock(CriterionProcessorInterface::class);
+        $this->resolver = new ContentTreeChildrenQueryArgumentResolver(
+            $this->criterionProcessor
+        );
+    }
+
+    /**
+     * @dataProvider provideDataForTestSupports
+     */
+    public function testSupports(
+        bool $expected,
+        ArgumentMetadata $argumentMetadata
+    ): void {
+        self::assertSame(
+            $expected,
+            $this->resolver->supports(
+                new Request(),
+                $argumentMetadata
+            )
+        );
+    }
+
+    /**
+     * @return iterable<array{
+     *     bool,
+     *     \Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata
+     * }>
+     */
+    public function provideDataForTestSupports(): iterable
+    {
+        yield 'Not supported' => [
+            false,
+            $this->createMock(ArgumentMetadata::class),
+        ];
+
+        yield 'Not supported - invalid argument type' => [
+            false,
+            $this->createArgumentMetadata(
+                'filter',
+                'foo',
+            ),
+        ];
+
+        yield 'Not supported - invalid argument name' => [
+            false,
+            $this->createArgumentMetadata(
+                'foo',
+                Criterion::class,
+            ),
+        ];
+
+        yield 'Supported' => [
+            true,
+            $this->createArgumentMetadata(
+                'filter',
+                Criterion::class,
+            ),
+        ];
+    }
+
+    /**
+     * @dataProvider provideDataForTestResolve
+     *
+     * @param array<string, string|array<mixed>> $criteriaToProcess
+     * @param Traversable<\Ibexa\Contracts\Core\Repository\Values\Content\Query\CriterionInterface> $expectedCriteria
+     *
+     * @throws \Ibexa\Contracts\Core\Repository\Exceptions\InvalidArgumentException
+     */
+    public function testResolve(
+        Criterion $expected,
+        Request $request,
+        Traversable $expectedCriteria,
+        array $criteriaToProcess = []
+    ): void {
+        if (!empty($criteriaToProcess)) {
+            $this->mockCriterionProcessorProcessCriteria($criteriaToProcess, $expectedCriteria);
+        }
+
+        $generator = $this->resolver->resolve(
+            $request,
+            $this->createMock(ArgumentMetadata::class)
+        );
+
+        self::assertInstanceOf(Generator::class, $generator);
+        $resolvedArguments = iterator_to_array($generator);
+
+        self::assertCount(1, $resolvedArguments);
+
+        self::assertEquals(
+            $expected,
+            $resolvedArguments[0]
+        );
+    }
+
+    /**
+     * @return iterable<array{
+     *     \Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion,
+     *     \Symfony\Component\HttpFoundation\Request,
+     *     \Traversable<\Ibexa\Contracts\Core\Repository\Values\Content\Query\Criterion>,
+     *     3?: array<string, string>,
+     * }>
+     *
+     * @throws \Ibexa\Contracts\Core\Repository\Exceptions\InvalidCriterionArgumentException
+     */
+    public function provideDataForTestResolve(): iterable
+    {
+        yield 'Return null - missing filter query param' => [
+            new LogicalAnd([]),
+            $this->createRequest(null),
+            new ArrayIterator(),
+        ];
+
+        yield 'Return null - empty value for filter query param' => [
+            new LogicalAnd([]),
+            $this->createRequest([]),
+            new ArrayIterator(),
+        ];
+
+        $criteriaToProcess = [
+            'ContentTypeIdentifierCriterion' => 'folder',
+        ];
+        $expectedCriteria = [
+            new ContentTypeIdentifier('folder'),
+        ];
+
+        yield 'Return filter with ContentTypeIdentifier criterion' => [
+            new LogicalAnd($expectedCriteria),
+            $this->createRequest($criteriaToProcess),
+            new ArrayIterator($expectedCriteria),
+            $criteriaToProcess,
+        ];
+    }
+
+    /**
+     * @param array<string, string|array<mixed>> $criteriaToProcess
+     * @param Traversable<\Ibexa\Contracts\Core\Repository\Values\Content\Query\CriterionInterface> $expectedCriteria
+     */
+    private function mockCriterionProcessorProcessCriteria(
+        ?array $criteriaToProcess,
+        Traversable $expectedCriteria
+    ): void {
+        $this->criterionProcessor
+            ->method('processCriteria')
+            ->with($criteriaToProcess)
+            ->willReturn($expectedCriteria);
+    }
+
+    /**
+     * @param array<mixed>|null $filter
+     */
+    private function createRequest(?array $filter): Request
+    {
+        $request = Request::create('/');
+
+        if (null !== $filter) {
+            $request->query->set('filter', $filter);
+        }
+
+        return $request;
+    }
+
+    private function createArgumentMetadata(
+        string $name,
+        string $type
+    ): ArgumentMetadata {
+        return new ArgumentMetadata(
+            $name,
+            $type,
+            true,
+            false,
+            ''
+        );
+    }
+}
diff --git a/tests/integration/REST/GetContentTreeChildrenTest.php b/tests/integration/REST/GetContentTreeChildrenTest.php
new file mode 100644
index 0000000000..b43282a9bf
--- /dev/null
+++ b/tests/integration/REST/GetContentTreeChildrenTest.php
@@ -0,0 +1,126 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Tests\Integration\AdminUi\REST;
+
+use Ibexa\Contracts\Test\Rest\Request\Value\EndpointRequestDefinition;
+
+final class GetContentTreeChildrenTest extends BaseAdminUiRestWebTestCase
+{
+    private const ENDPOINT_CONTENT_TREE_CHILDREN_URL = 'api/ibexa/v2/location/tree/load-subitems/1/10/0';
+    private const RESOURCE_TYPE = 'ContentTreeNode';
+    private const SNAPSHOT_FILTER_PATH = self::RESOURCE_TYPE . '/filter/%s/%s';
+    private const SNAPSHOT_NO_FILTER = 'no-filter';
+    private const LOCATION_ID_MEDIA = 43;
+
+    protected static function getEndpointsToTest(): iterable
+    {
+        yield from self::generateRequestDefinitionsWithAllFormats(
+            (new EndpointRequestDefinition(
+                'GET',
+                self::ENDPOINT_CONTENT_TREE_CHILDREN_URL,
+                self::RESOURCE_TYPE,
+                null
+            ))->withSnapshotName(self::SNAPSHOT_FILTER_PATH),
+            self::SNAPSHOT_NO_FILTER
+        );
+
+        foreach (self::getFilterQuery() as $snapshotName => $filterQuery) {
+            yield (
+                new EndpointRequestDefinition(
+                    'GET',
+                    self::ENDPOINT_CONTENT_TREE_CHILDREN_URL . '?' . $filterQuery,
+                    self::RESOURCE_TYPE,
+                    self::generateMediaTypeString(self::RESOURCE_TYPE, 'json')
+                )
+            )->withSnapshotName(
+                sprintf(
+                    self::SNAPSHOT_FILTER_PATH,
+                    '/json/',
+                    $snapshotName
+                )
+            );
+        }
+    }
+
+    /**
+     * @return iterable<\Ibexa\Contracts\Test\Rest\Request\Value\EndpointRequestDefinition>
+     */
+    private static function generateRequestDefinitionsWithAllFormats(
+        EndpointRequestDefinition $endpointRequestDefinition,
+        string $snapshotName
+    ): iterable {
+        foreach (self::REQUIRED_FORMATS as $format) {
+            $resourceType = $endpointRequestDefinition->getExpectedResourceType();
+            self::assertNotNull($resourceType, "Expected resource type for $endpointRequestDefinition cannot be null");
+            yield $endpointRequestDefinition
+                ->withAcceptHeader(
+                    self::generateMediaTypeString($resourceType, $format)
+                )
+                ->withSnapshotName(
+                    sprintf(
+                        self::SNAPSHOT_FILTER_PATH,
+                        $format,
+                        $snapshotName
+                    )
+                );
+        }
+    }
+
+    /**
+     * @return iterable<string, string>
+     */
+    private static function getFilterQuery(): iterable
+    {
+        foreach (self::getFilterQueryStructure() as $filterSnapshotName => $filter) {
+            yield "$filterSnapshotName" => urldecode(
+                http_build_query($filter)
+            );
+        }
+    }
+
+    /**
+     * @return iterable<string, array{filter?: array<mixed>}>
+     */
+    private static function getFilterQueryStructure(): iterable
+    {
+        yield self::SNAPSHOT_NO_FILTER => [];
+
+        yield 'filter-by-content-type-identifier-folder' => [
+            'filter' => [
+                'ContentTypeIdentifierCriterion' => 'folder',
+            ],
+        ];
+
+        yield 'filter-by-content-type-identifier-folder-and-landing-page' => [
+            'filter' => [
+                'ContentTypeIdentifierCriterion' => [
+                    'folder', 'landing_page',
+                ],
+            ],
+        ];
+
+        yield 'filter-by-content-type-identifier-folder-and-media-location-id' => [
+            'filter' => [
+                'AND' => [
+                    'ContentTypeIdentifierCriterion' => 'folder',
+                    'LocationIdCriterion' => self::LOCATION_ID_MEDIA,
+                ],
+            ],
+        ];
+
+        yield 'filter-by-content-type-identifier-folder-or-subtree' => [
+            'filter' => [
+                'OR' => [
+                    'ContentTypeIdentifierCriterion' => 'folder',
+                    'SubtreeCriterion' => '/1/5/',
+                ],
+            ],
+        ];
+    }
+}
diff --git a/tests/integration/Resources/REST/Schemas/ContentTreeNode.json b/tests/integration/Resources/REST/Schemas/ContentTreeNode.json
new file mode 100644
index 0000000000..8652632758
--- /dev/null
+++ b/tests/integration/Resources/REST/Schemas/ContentTreeNode.json
@@ -0,0 +1,128 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "properties": {
+    "ContentTreeNode": {
+      "type": "object",
+      "properties": {
+        "_media-type": {
+          "type": "string"
+        },
+        "locationId": {
+          "type": "integer"
+        },
+        "contentId": {
+          "type": "integer"
+        },
+        "name": {
+          "type": "string"
+        },
+        "contentTypeIdentifier": {
+          "type": "string"
+        },
+        "isContainer": {
+          "type": "boolean"
+        },
+        "isInvisible": {
+          "type": "boolean"
+        },
+        "displayLimit": {
+          "type": "integer"
+        },
+        "totalChildrenCount": {
+          "type": "integer"
+        },
+        "reverseRelationsCount": {
+          "type": "integer"
+        },
+        "isBookmarked": {
+          "type": "boolean"
+        },
+        "children": {
+          "type": "array",
+          "items": [
+            {
+              "type": "object",
+              "properties": {
+                "_media-type": {
+                  "type": "string"
+                },
+                "locationId": {
+                  "type": "integer"
+                },
+                "contentId": {
+                  "type": "integer"
+                },
+                "name": {
+                  "type": "string"
+                },
+                "contentTypeIdentifier": {
+                  "type": "string"
+                },
+                "isContainer": {
+                  "type": "boolean"
+                },
+                "isInvisible": {
+                  "type": "boolean"
+                },
+                "displayLimit": {
+                  "type": "integer"
+                },
+                "totalChildrenCount": {
+                  "type": "integer"
+                },
+                "reverseRelationsCount": {
+                  "type": "integer"
+                },
+                "isBookmarked": {
+                  "type": "boolean"
+                },
+                "children": {
+                  "type": "array",
+                  "items": {}
+                }
+              },
+              "required": [
+                "_media-type",
+                "locationId",
+                "pathString",
+                "contentId",
+                "versionNo",
+                "translations",
+                "name",
+                "contentTypeIdentifier",
+                "isContainer",
+                "isInvisible",
+                "displayLimit",
+                "totalChildrenCount",
+                "reverseRelationsCount",
+                "isBookmarked",
+                "children"
+              ]
+            }
+          ]
+        }
+      },
+      "required": [
+        "_media-type",
+        "locationId",
+        "pathString",
+        "contentId",
+        "versionNo",
+        "translations",
+        "name",
+        "contentTypeIdentifier",
+        "isContainer",
+        "isInvisible",
+        "displayLimit",
+        "totalChildrenCount",
+        "reverseRelationsCount",
+        "isBookmarked",
+        "children"
+      ]
+    }
+  },
+  "required": [
+    "ContentTreeNode"
+  ]
+}
diff --git a/tests/integration/Resources/REST/Schemas/ContentTreeNode.xsd b/tests/integration/Resources/REST/Schemas/ContentTreeNode.xsd
new file mode 100644
index 0000000000..d3cd136b92
--- /dev/null
+++ b/tests/integration/Resources/REST/Schemas/ContentTreeNode.xsd
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
+    <xs:element name="ContentTreeNode">
+        <xs:complexType>
+            <xs:sequence>
+                <xs:element type="xs:integer" name="locationId"/>
+                <xs:element type="xs:string" name="pathString"/>
+                <xs:element type="xs:integer" name="contentId"/>
+                <xs:element type="xs:integer" name="versionNo"/>
+                <xs:element type="xs:string" name="translations"/>
+                <xs:element type="xs:string" name="mainLanguageCode"/>
+                <xs:element type="xs:string" name="name"/>
+                <xs:element type="xs:string" name="contentTypeIdentifier"/>
+                <xs:element type="xs:boolean" name="isContainer"/>
+                <xs:element type="xs:string" name="isInvisible"/>
+                <xs:element type="xs:integer" name="displayLimit"/>
+                <xs:element type="xs:integer" name="totalChildrenCount"/>
+                <xs:element type="xs:integer" name="reverseRelationsCount"/>
+                <xs:element type="xs:boolean" name="isBookmarked"/>
+                <xs:element name="ContentTreeNode" maxOccurs="unbounded" minOccurs="0">
+                    <xs:complexType>
+                        <xs:sequence>
+                            <xs:element type="xs:integer" name="locationId"/>
+                            <xs:element type="xs:string" name="pathString"/>
+                            <xs:element type="xs:integer" name="contentId"/>
+                            <xs:element type="xs:integer" name="versionNo"/>
+                            <xs:element type="xs:string" name="translations"/>
+                            <xs:element type="xs:string" name="mainLanguageCode"/>
+                            <xs:element type="xs:string" name="name"/>
+                            <xs:element type="xs:string" name="contentTypeIdentifier"/>
+                            <xs:element type="xs:boolean" name="isContainer"/>
+                            <xs:element type="xs:string" name="isInvisible"/>
+                            <xs:element type="xs:integer" name="displayLimit"/>
+                            <xs:element type="xs:integer" name="totalChildrenCount"/>
+                            <xs:element type="xs:integer" name="reverseRelationsCount"/>
+                            <xs:element type="xs:boolean" name="isBookmarked"/>
+                        </xs:sequence>
+                        <xs:attribute name="media-type" type="xs:string" use="required" />
+                    </xs:complexType>
+                </xs:element>
+            </xs:sequence>
+            <xs:attribute name="media-type" type="xs:string" use="required" />
+        </xs:complexType>
+    </xs:element>
+</xs:schema>
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-landing-page.json b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-landing-page.json
new file mode 100644
index 0000000000..b93aa863fd
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-landing-page.json
@@ -0,0 +1,93 @@
+{
+    "ContentTreeNode": {
+        "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+        "children": [
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 57,
+                "contentTypeIdentifier": "landing_page",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 2,
+                "mainLanguageCode": "eng-GB",
+                "name": "Home",
+                "pathString": "/1/2/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-GB",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 41,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 43,
+                "mainLanguageCode": "eng-US",
+                "name": "Media",
+                "pathString": "/1/43/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 3,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 45,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 48,
+                "mainLanguageCode": "eng-US",
+                "name": "Setup",
+                "pathString": "/1/48/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 56,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 58,
+                "mainLanguageCode": "eng-US",
+                "name": "Design",
+                "pathString": "/1/58/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            }
+        ],
+        "contentId": 0,
+        "contentTypeIdentifier": "",
+        "displayLimit": 10,
+        "isBookmarked": false,
+        "isContainer": true,
+        "isInvisible": false,
+        "locationId": 1,
+        "mainLanguageCode": "eng-GB",
+        "name": "",
+        "pathString": "/1/",
+        "reverseRelationsCount": 0,
+        "totalChildrenCount": 4,
+        "translations": "",
+        "versionNo": 1
+    }
+}
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-media-location-id.json b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-media-location-id.json
new file mode 100644
index 0000000000..8d133ecb73
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-and-media-location-id.json
@@ -0,0 +1,39 @@
+{
+    "ContentTreeNode": {
+        "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+        "children": [
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 41,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 43,
+                "mainLanguageCode": "eng-US",
+                "name": "Media",
+                "pathString": "/1/43/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            }
+        ],
+        "contentId": 0,
+        "contentTypeIdentifier": "",
+        "displayLimit": 10,
+        "isBookmarked": false,
+        "isContainer": true,
+        "isInvisible": false,
+        "locationId": 1,
+        "mainLanguageCode": "eng-GB",
+        "name": "",
+        "pathString": "/1/",
+        "reverseRelationsCount": 0,
+        "totalChildrenCount": 1,
+        "translations": "",
+        "versionNo": 1
+    }
+}
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-or-subtree.json b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-or-subtree.json
new file mode 100644
index 0000000000..240568a68f
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder-or-subtree.json
@@ -0,0 +1,93 @@
+{
+    "ContentTreeNode": {
+        "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+        "children": [
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 41,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 43,
+                "mainLanguageCode": "eng-US",
+                "name": "Media",
+                "pathString": "/1/43/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 3,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 45,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 48,
+                "mainLanguageCode": "eng-US",
+                "name": "Setup",
+                "pathString": "/1/48/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 4,
+                "contentTypeIdentifier": "user_group",
+                "displayLimit": 30,
+                "isBookmarked": true,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 5,
+                "mainLanguageCode": "eng-US",
+                "name": "Users",
+                "pathString": "/1/5/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 5,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 56,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 58,
+                "mainLanguageCode": "eng-US",
+                "name": "Design",
+                "pathString": "/1/58/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            }
+        ],
+        "contentId": 0,
+        "contentTypeIdentifier": "",
+        "displayLimit": 10,
+        "isBookmarked": false,
+        "isContainer": true,
+        "isInvisible": false,
+        "locationId": 1,
+        "mainLanguageCode": "eng-GB",
+        "name": "",
+        "pathString": "/1/",
+        "reverseRelationsCount": 0,
+        "totalChildrenCount": 4,
+        "translations": "",
+        "versionNo": 1
+    }
+}
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder.json b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder.json
new file mode 100644
index 0000000000..ded51eb7fd
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/filter-by-content-type-identifier-folder.json
@@ -0,0 +1,75 @@
+{
+    "ContentTreeNode": {
+        "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+        "children": [
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 41,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 43,
+                "mainLanguageCode": "eng-US",
+                "name": "Media",
+                "pathString": "/1/43/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 3,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 45,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 48,
+                "mainLanguageCode": "eng-US",
+                "name": "Setup",
+                "pathString": "/1/48/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 56,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 58,
+                "mainLanguageCode": "eng-US",
+                "name": "Design",
+                "pathString": "/1/58/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            }
+        ],
+        "contentId": 0,
+        "contentTypeIdentifier": "",
+        "displayLimit": 10,
+        "isBookmarked": false,
+        "isContainer": true,
+        "isInvisible": false,
+        "locationId": 1,
+        "mainLanguageCode": "eng-GB",
+        "name": "",
+        "pathString": "/1/",
+        "reverseRelationsCount": 0,
+        "totalChildrenCount": 3,
+        "translations": "",
+        "versionNo": 1
+    }
+}
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/no-filter.json b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/no-filter.json
new file mode 100644
index 0000000000..0337e22d7e
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/json/no-filter.json
@@ -0,0 +1,111 @@
+{
+    "ContentTreeNode": {
+        "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+        "children": [
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 57,
+                "contentTypeIdentifier": "landing_page",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 2,
+                "mainLanguageCode": "eng-GB",
+                "name": "Home",
+                "pathString": "/1/2/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 1,
+                "translations": "eng-GB",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 41,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 43,
+                "mainLanguageCode": "eng-US",
+                "name": "Media",
+                "pathString": "/1/43/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 3,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 45,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 48,
+                "mainLanguageCode": "eng-US",
+                "name": "Setup",
+                "pathString": "/1/48/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 4,
+                "contentTypeIdentifier": "user_group",
+                "displayLimit": 30,
+                "isBookmarked": true,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 5,
+                "mainLanguageCode": "eng-US",
+                "name": "Users",
+                "pathString": "/1/5/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 5,
+                "translations": "eng-US",
+                "versionNo": 1
+            },
+            {
+                "_media-type": "application/vnd.ibexa.api.ContentTreeNode+json",
+                "children": [],
+                "contentId": 56,
+                "contentTypeIdentifier": "folder",
+                "displayLimit": 30,
+                "isBookmarked": false,
+                "isContainer": true,
+                "isInvisible": false,
+                "locationId": 58,
+                "mainLanguageCode": "eng-US",
+                "name": "Design",
+                "pathString": "/1/58/",
+                "reverseRelationsCount": 0,
+                "totalChildrenCount": 0,
+                "translations": "eng-US",
+                "versionNo": 1
+            }
+        ],
+        "contentId": 0,
+        "contentTypeIdentifier": "",
+        "displayLimit": 10,
+        "isBookmarked": false,
+        "isContainer": true,
+        "isInvisible": false,
+        "locationId": 1,
+        "mainLanguageCode": "eng-GB",
+        "name": "",
+        "pathString": "/1/",
+        "reverseRelationsCount": 0,
+        "totalChildrenCount": 5,
+        "translations": "",
+        "versionNo": 1
+    }
+}
diff --git a/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/xml/no-filter.xml b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/xml/no-filter.xml
new file mode 100644
index 0000000000..e4a55a1fc0
--- /dev/null
+++ b/tests/integration/Resources/REST/Snapshots/ContentTreeNode/filter/xml/no-filter.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0"?>
+<ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+    <locationId>1</locationId>
+    <pathString>/1/</pathString>
+    <contentId>0</contentId>
+    <versionNo>1</versionNo>
+    <translations/>
+    <mainLanguageCode>eng-GB</mainLanguageCode>
+    <name/>
+    <contentTypeIdentifier/>
+    <isContainer>true</isContainer>
+    <isInvisible>false</isInvisible>
+    <displayLimit>10</displayLimit>
+    <totalChildrenCount>5</totalChildrenCount>
+    <reverseRelationsCount>0</reverseRelationsCount>
+    <isBookmarked>false</isBookmarked>
+    <ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+        <locationId>2</locationId>
+        <pathString>/1/2/</pathString>
+        <contentId>57</contentId>
+        <versionNo>1</versionNo>
+        <translations>eng-GB</translations>
+        <mainLanguageCode>eng-GB</mainLanguageCode>
+        <name>Home</name>
+        <contentTypeIdentifier>landing_page</contentTypeIdentifier>
+        <isContainer>true</isContainer>
+        <isInvisible>false</isInvisible>
+        <displayLimit>30</displayLimit>
+        <totalChildrenCount>1</totalChildrenCount>
+        <reverseRelationsCount>0</reverseRelationsCount>
+        <isBookmarked>false</isBookmarked>
+    </ContentTreeNode>
+    <ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+        <locationId>43</locationId>
+        <pathString>/1/43/</pathString>
+        <contentId>41</contentId>
+        <versionNo>1</versionNo>
+        <translations>eng-US</translations>
+        <mainLanguageCode>eng-US</mainLanguageCode>
+        <name>Media</name>
+        <contentTypeIdentifier>folder</contentTypeIdentifier>
+        <isContainer>true</isContainer>
+        <isInvisible>false</isInvisible>
+        <displayLimit>30</displayLimit>
+        <totalChildrenCount>3</totalChildrenCount>
+        <reverseRelationsCount>0</reverseRelationsCount>
+        <isBookmarked>false</isBookmarked>
+    </ContentTreeNode>
+    <ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+        <locationId>48</locationId>
+        <pathString>/1/48/</pathString>
+        <contentId>45</contentId>
+        <versionNo>1</versionNo>
+        <translations>eng-US</translations>
+        <mainLanguageCode>eng-US</mainLanguageCode>
+        <name>Setup</name>
+        <contentTypeIdentifier>folder</contentTypeIdentifier>
+        <isContainer>true</isContainer>
+        <isInvisible>false</isInvisible>
+        <displayLimit>30</displayLimit>
+        <totalChildrenCount>0</totalChildrenCount>
+        <reverseRelationsCount>0</reverseRelationsCount>
+        <isBookmarked>false</isBookmarked>
+    </ContentTreeNode>
+    <ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+        <locationId>5</locationId>
+        <pathString>/1/5/</pathString>
+        <contentId>4</contentId>
+        <versionNo>1</versionNo>
+        <translations>eng-US</translations>
+        <mainLanguageCode>eng-US</mainLanguageCode>
+        <name>Users</name>
+        <contentTypeIdentifier>user_group</contentTypeIdentifier>
+        <isContainer>true</isContainer>
+        <isInvisible>false</isInvisible>
+        <displayLimit>30</displayLimit>
+        <totalChildrenCount>5</totalChildrenCount>
+        <reverseRelationsCount>0</reverseRelationsCount>
+        <isBookmarked>true</isBookmarked>
+    </ContentTreeNode>
+    <ContentTreeNode media-type="application/vnd.ibexa.api.ContentTreeNode+xml">
+        <locationId>58</locationId>
+        <pathString>/1/58/</pathString>
+        <contentId>56</contentId>
+        <versionNo>1</versionNo>
+        <translations>eng-US</translations>
+        <mainLanguageCode>eng-US</mainLanguageCode>
+        <name>Design</name>
+        <contentTypeIdentifier>folder</contentTypeIdentifier>
+        <isContainer>true</isContainer>
+        <isInvisible>false</isInvisible>
+        <displayLimit>30</displayLimit>
+        <totalChildrenCount>0</totalChildrenCount>
+        <reverseRelationsCount>0</reverseRelationsCount>
+        <isBookmarked>false</isBookmarked>
+    </ContentTreeNode>
+</ContentTreeNode>