Merge pull request #57 from maria-simon/master

Fix for issue #56

Author: gnongsie

lib/apicontrollersbase.js

@@ -102,9 +102,10 @@ class APIOperationBase {
 			} else 
 			{
 				//TODO: slice added due to BOM character. remove once BOM character is removed.
-				var responseObj = JSON.parse(body.slice(1));
-				logger.debug(JSON.stringify(responseObj, 2, null));
-				obj._response = responseObj;
+				if(typeof body!=='undefined'){
+					var responseObj = JSON.parse(body.slice(1));
+					logger.debug(JSON.stringify(responseObj, 2, null));
+					obj._response = responseObj;
 				/*
 				var jsonResponse = JSON.stringify(body);
 				console.log("escaped body : '" + escape(jsonResponse) + "'");
@@ -114,6 +115,11 @@ class APIOperationBase {
 				*/
 				callback();
 			}
+				else
+				{
+					logger.error("Undefined Response");
+				}
+			}
 		});
 
 		logger.debug('Exit APIOperationBase execute');