diff --git a/app/controllers/concerns/notion_concern.rb b/app/controllers/concerns/notion_concern.rb
new file mode 100644
index 000000000..6c13f4177
--- /dev/null
+++ b/app/controllers/concerns/notion_concern.rb
@@ -0,0 +1,21 @@
+module NotionConcern
+  extend ActiveSupport::Concern
+
+  def notion_client
+    app_id = GlobalConfigService.load('NOTION_CLIENT_ID', nil)
+    app_secret = GlobalConfigService.load('NOTION_CLIENT_SECRET', nil)
+
+    ::OAuth2::Client.new(app_id, app_secret, {
+                           site: 'https://api.notion.com',
+                           authorize_url: 'https://api.notion.com/v1/oauth/authorize',
+                           token_url: 'https://api.notion.com/v1/oauth/token',
+                           auth_scheme: :basic_auth
+                         })
+  end
+
+  private
+
+  def scope
+    'read'
+  end
+end
\ No newline at end of file