diff --git a/example/post_transform.lua b/example/post_transform.lua
new file mode 100644
index 0000000..94c497a
--- /dev/null
+++ b/example/post_transform.lua
@@ -0,0 +1,41 @@
+--  Licensed to the Apache Software Foundation (ASF) under one
+--  or more contributor license agreements.  See the NOTICE file
+--  distributed with this work for additional information
+--  regarding copyright ownership.  The ASF licenses this file
+--  to you 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.
+
+
+function request_transform(data, eos)
+    if data ~= nil then
+        ts.ctx['body'] = ts.ctx['body'] .. data
+    end
+
+    if eos == 1 then
+        local hash = ts.sha1(ts.ctx['body'])
+        print(ts.ctx['body'])
+        print(hash)
+    end
+
+    return data, eos
+end
+
+function do_remap()
+    local method = ts.client_request.get_method()
+
+    if method == 'POST' then
+        ts.ctx['body'] = ''
+        ts.hook(TS_LUA_REQUEST_TRANSFORM, request_transform)
+    end
+
+    return 0
+end