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path: root/synapse/rest/client/v2_alpha/sync.py
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Diffstat (limited to 'synapse/rest/client/v2_alpha/sync.py')
-rw-r--r--synapse/rest/client/v2_alpha/sync.py10
1 files changed, 5 insertions, 5 deletions
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 51e395cc64..6779df952f 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -77,6 +77,7 @@ class SyncRestServlet(RestServlet):
         super().__init__()
         self.hs = hs
         self.auth = hs.get_auth()
+        self.store = hs.get_datastore()
         self.sync_handler = hs.get_sync_handler()
         self.clock = hs.get_clock()
         self.filtering = hs.get_filtering()
@@ -151,10 +152,9 @@ class SyncRestServlet(RestServlet):
             device_id=device_id,
         )
 
+        since_token = None
         if since is not None:
-            since_token = StreamToken.from_string(since)
-        else:
-            since_token = None
+            since_token = await StreamToken.from_string(self.store, since)
 
         # send any outstanding server notices to the user.
         await self._server_notices_sender.on_user_syncing(user.to_string())
@@ -236,7 +236,7 @@ class SyncRestServlet(RestServlet):
                 "leave": sync_result.groups.leave,
             },
             "device_one_time_keys_count": sync_result.device_one_time_keys_count,
-            "next_batch": sync_result.next_batch.to_string(),
+            "next_batch": await sync_result.next_batch.to_string(self.store),
         }
 
     @staticmethod
@@ -413,7 +413,7 @@ class SyncRestServlet(RestServlet):
         result = {
             "timeline": {
                 "events": serialized_timeline,
-                "prev_batch": room.timeline.prev_batch.to_string(),
+                "prev_batch": await room.timeline.prev_batch.to_string(self.store),
                 "limited": room.timeline.limited,
             },
             "state": {"events": serialized_state},