Index: cloud_sync.py
===================================================================
diff -u -r5e2872a15167f8d66d074d106f3afc78d1da3dea -r3b80d8631090f72584ae2a309efcea2d20b4f62e
--- cloud_sync.py	(.../cloud_sync.py)	(revision 5e2872a15167f8d66d074d106f3afc78d1da3dea)
+++ cloud_sync.py	(.../cloud_sync.py)	(revision 3b80d8631090f72584ae2a309efcea2d20b4f62e)
@@ -1,3 +1,5 @@
+"""Implementation of CloudSync controller"""
+
 import argparse
 import logging
 import socket
@@ -15,12 +17,11 @@
 from cloudsync.busses.file_input_bus import FileInputBus
 from cloudsync.utils.heartbeat import HeartBeatProvider
 
-VERSION = "0.2.3"
+VERSION = "0.2.4"
 
 arguments = sys.argv
 log_level = int(arguments[1])
 
-
 logging.basicConfig(filename='cloudsync.log', level=log_level)
 
 app = Flask(__name__)
@@ -69,12 +70,12 @@
 @api.route("/version")
 class Version(Resource):
 
-    @api.response(200, "Success")
+    @api.response(OK, "Success")
     def get(self):
         app.logger.info("Received /version HTTP request")
         return {
                    "version": VERSION
-               }, 200
+               }, OK
 
 
 @api.route("/credentials")
@@ -87,8 +88,8 @@
     })
 
     @api.doc(body=FIELD_CREDENTIALS, validate=True)
-    @api.response(200, "Success")
-    @api.response(400, "Validation Error")
+    @api.response(OK, "Success")
+    @api.response(BAD_REQUEST, "Validation Error")
     def put(self):
         """
         4. Update the device's certificate and keys
@@ -107,7 +108,7 @@
         if public_key is None:
             invalid_params.append("public_key")
         if len(invalid_params) > 0:
-            return {"invalidAttributes": invalid_params}, 400
+            return {"invalidAttributes": invalid_params}, BAD_REQUEST
 
         r = NetworkRequest(request_type=NetworkRequestType.MFT2CS_REQ_SET_CREDENTIALS,
                            url=request.url,
@@ -119,13 +120,13 @@
 
         return {
                    "invalidAttributes": [],
-               }, 200
+               }, OK
 
 
 @api.route("/validate")
 class Validate(Resource):
 
-    @api.response(200, "Success")
+    @api.response(OK, "Success")
     def head(self):
         """
         5. Initiate device connectivity test
@@ -142,13 +143,13 @@
         network_request_handler.enqueue_request(r)
 
         # no body is returned
-        return {}, 200
+        return {}, OK
 
 
 @api.route("/reset")
 class Reset(Resource):
 
-    @api.response(200, "Success")
+    @api.response(OK, "Success")
     def head(self):
         """
         13. Initiate a factory reset
@@ -168,32 +169,32 @@
 
         heartbeat_provider.send_heartbeat = True
 
-        return {}, 200
+        return {}, OK
 
 # END - REGISTRATION ENDPOINTS
 
 @api.route("/config")
 class Config(Resource):
 
-    @api.response(200, "Success")
+    @api.response(OK, "Success")
     def get(self):
         """
         Get the current json config
         """
         app.logger.info("Received /config HTTP request")
-        return g_config, 200
+        return g_config, OK
 
 
 @api.route("/token")
 class Config(Resource):
 
-    @api.response(200, "Success")
+    @api.response(OK, "Success")
     def get(self):
         """
         Get the currently stored token
         """
         app.logger.info("Received /token HTTP request")
-        return helpers_read_access_token(DEVICE_KEBORMED_ACCESS_TOKEN_PATH), 200
+        return helpers_read_access_token(DEVICE_KEBORMED_ACCESS_TOKEN_PATH), OK
 
 
 @api.route("/logs")