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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Logging
+=======
+
+
+**Where to Access Information**
+Data Router uses logback framework to generate logs.
+
+**Error / Warning Messages**
+Currently Data Router does not have any unique error codes. However the following are the common HTTP error codes that
+could possibly occur in Data Router:
+
+    OK = 200 : The normal response from a successful update or get of a feed or subscription
+
+    CREATED = 201 : the normal response from successfully creating or subscribing to a feed.
+
+    NO_CONTENT = 204 : the normal response from a successful publish attempt and on successfully deleting a feed or subscription
+
+    MOVED_PERMANENTLY = 301 :the normal redirect response from prov to a publisher
+
+    BAD_REQUEST = 400: Usually indicates that either Json object in request body is incorrect in some way, or an Invalid parameter value was included in query string.
+
+    UNAUTHORIZED = 401 : Usually indicated either request was missing Authorization header, or indicates incorrect Username/password credentials
+
+    FORBIDDEN = 403 : Usually indicates the request originated from an unauthorized IP address, or that a client certificate was not a part of authorized list.
+
+    NOT_FOUND = 404 : Usually indicates an incorrect URI
+
+    METHOD_NOT_ALLOWED = 405 : Indicates an HTTP method is not accepted for given URI
+\ No newline at end of file