1 files changed, 9 insertions, 0 deletions
diff --git a/synapse/config/user_directory.py b/synapse/config/user_directory.py
index 4cbf79eeed..3ac1f2b5b1 100644
--- a/synapse/config/user_directory.py
+++ b/synapse/config/user_directory.py
@@ -28,6 +28,9 @@ class UserDirectoryConfig(Config):
         self.user_directory_search_all_users = user_directory_config.get(
             "search_all_users", False
         )
+        self.user_directory_defer_to_id_server = user_directory_config.get(
+            "defer_to_id_server", None
+        )
         self.user_directory_search_prefer_local_users = user_directory_config.get(
             "prefer_local_users", False
         )
@@ -57,6 +60,12 @@ class UserDirectoryConfig(Config):
             #
             #search_all_users: true
 
+            # If this is set, user search will be delegated to this ID server instead
+            # of Synapse performing the search itself.
+            # This is an experimental API.
+            #
+            #defer_to_id_server: https://id.example.com
+
             # Defines whether to prefer local users in search query results.
             # If True, local users are more likely to appear above remote users
             # when searching the user directory. Defaults to false.