diff --git a/synapse/api/events/factory.py b/synapse/api/events/factory.py
new file mode 100644
index 0000000000..ea7afa234e
--- /dev/null
+++ b/synapse/api/events/factory.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 matrix.org
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from synapse.api.events.room import (
+ RoomTopicEvent, MessageEvent, RoomMemberEvent, FeedbackEvent,
+ InviteJoinEvent, RoomConfigEvent
+)
+
+from synapse.util.stringutils import random_string
+
+
+class EventFactory(object):
+
+ _event_classes = [
+ RoomTopicEvent,
+ MessageEvent,
+ RoomMemberEvent,
+ FeedbackEvent,
+ InviteJoinEvent,
+ RoomConfigEvent
+ ]
+
+ def __init__(self):
+ self._event_list = {} # dict of TYPE to event class
+ for event_class in EventFactory._event_classes:
+ self._event_list[event_class.TYPE] = event_class
+
+ def create_event(self, etype=None, **kwargs):
+ kwargs["type"] = etype
+ if "event_id" not in kwargs:
+ kwargs["event_id"] = random_string(10)
+
+ try:
+ handler = self._event_list[etype]
+ except KeyError: # unknown event type
+ # TODO allow custom event types.
+ raise NotImplementedError("Unknown etype=%s" % etype)
+
+ return handler(**kwargs)
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