Support federation in the new spaces summary API (MSC2946). (#10569)

1 files changed, 22 insertions, 0 deletions

diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py
index 90a7c16b62..8b247fe206 100644
--- a/synapse/federation/transport/client.py
+++ b/synapse/federation/transport/client.py
@@ -1177,6 +1177,28 @@ class TransportLayerClient:
             destination=destination, path=path, data=params
         )
 
+    async def get_room_hierarchy(
+        self,
+        destination: str,
+        room_id: str,
+        suggested_only: bool,
+    ) -> JsonDict:
+        """
+        Args:
+            destination: The remote server
+            room_id: The room ID to ask about.
+            suggested_only: if True, only suggested rooms will be returned
+        """
+        path = _create_path(
+            FEDERATION_UNSTABLE_PREFIX, "/org.matrix.msc2946/hierarchy/%s", room_id
+        )
+
+        return await self.client.get_json(
+            destination=destination,
+            path=path,
+            args={"suggested_only": "true" if suggested_only else "false"},
+        )
+
 
 def _create_path(federation_prefix: str, path: str, *args: str) -> str:
     """