Add GET /notifications API

synapse/storage/event_push_actions.py

@@ -191,6 +191,34 @@ class EventPushActionsStore(SQLBaseStore):
             } for row in after_read_receipt + no_read_receipt
         ])
 
+    @defer.inlineCallbacks
+    def get_push_actions_for_user(self, user_id, before=None, limit=50):
+        def f(txn):
+            before_clause = ""
+            if before:
+                before_clause = "AND stream_ordering < ?"
+                args = [user_id, before, limit]
+            else:
+                args = [user_id, limit]
+            sql = (
+                "SELECT event_id, room_id, stream_ordering, topological_ordering,"
+                " actions, profile_tag"
+                " FROM event_push_actions"
+                " WHERE user_id = ? %s"
+                " ORDER BY stream_ordering DESC"
+                " LIMIT ?"
+                % (before_clause,)
+            )
+            txn.execute(sql, args)
+            return self.cursor_to_dict(txn)
+
+        push_actions = yield self.runInteraction(
+            "get_push_actions_for_user", f
+        )
+        for pa in push_actions:
+            pa["actions"] = json.loads(pa["actions"])
+        defer.returnValue(push_actions)
+
     @defer.inlineCallbacks
     def get_time_of_last_push_action_before(self, stream_ordering):
         def f(txn):