Issue #3390505: Error: uri is not a valid type for a JSON document

jsonapi_schema.services.yml

@@ -48,6 +48,10 @@ services:
     class: Drupal\jsonapi_schema\Normalizer\DataDefinitionTimestampNormalizer
     tags:
       - { name: normalizer, priority: 10 }
+  serializer.normalizer.data_definition.schema_json.uri:
+    class: Drupal\jsonapi_schema\Normalizer\DataDefinitionUriNormalizer
+    tags:
+      - { name: normalizer, priority: 10 }
   serializer.normalizer.data_definition.schema_json.undefined:
     class: Drupal\jsonapi_schema\Normalizer\DataDefinitionUndefinedNormalizer
     tags:

src/Normalizer/DataDefinitionUriNormalizer.php

+<?php
+
+namespace Drupal\jsonapi_schema\Normalizer;
+
+use Drupal\Core\TypedData\DataDefinitionInterface;
+
+/**
+ * Data definition normalizer.
+ */
+class DataDefinitionUriNormalizer extends DataDefinitionNormalizer {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $supportedDataTypes = ['uri'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function extractPropertyData(DataDefinitionInterface $property, array $context = []) {
+    $value = parent::extractPropertyData($property);
+    $value['type'] = 'string';
+    $value['format'] = 'uri';
+    return $value;
+  }
+
+}

tests/src/Kernel/JsonApiSchemaTest.php

@@ -307,6 +307,22 @@ class JsonApiSchemaTest extends KernelTestBase {
       'description' => 'Test string description',
     ]);
     $field->save();
+
+    // Add a URI field.
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'test_uri',
+      'type' => 'uri',
+      'entity_type' => 'node',
+    ]);
+    $field_storage->save();
+    $field = FieldConfig::create([
+      'field_name' => 'test_uri',
+      'entity_type' => 'node',
+      'bundle' => 'article',
+      'label' => 'Test URI',
+      'description' => 'Test URI description',
+    ]);
+    $field->save();
   }
 
   /**
@@ -688,6 +704,9 @@ class JsonApiSchemaTest extends KernelTestBase {
 
     // Test timestamp fields.
     $this->assertEquals('date-time', $data['definitions']['attributes']['properties']['created']['format']);
+
+    // Test URI fields.
+    $this->assertEquals('uri', $data['definitions']['attributes']['properties']['test_uri']['format']);
   }
 
   /**