add topics to search index

config/install/search_api.index.blog.yml

@@ -4,6 +4,7 @@ dependencies:
   config:
     - field.storage.node.field_tags
     - field.storage.node.field_summary
+    - field.storage.node.field_topics
     - search_api.server.database
     - core.entity_view_mode.node.search_index
   module:
@@ -96,6 +97,14 @@ field_settings:
     datasource_id: 'entity:node'
     property_path: promote
     type: boolean
+  field_topics:
+    label: Topics
+    datasource_id: 'entity:node'
+    property_path: field_topics
+    type: integer
+    dependencies:
+      config:
+        - field.storage.node.field_topics
 datasource_settings:
   'entity:node':
     bundles: