anchor.diff:  	Encodekey = base64:encode_to_string(string:concat(RestUser ++ ":", RestPass)),
   	AuthKey = "Basic " ++ Encodekey,
   	Authentication = {"authorization", AuthKey},
  -	Filters = "?filter=identifier,secret",
  +	Filters = "?fields=identifier,secret",
   	Url = HostUrl ++ "/ocs/v1/client" ++ Filters,
   	Request = {Url, [Accept, Authentication]},
   	{ok, Result} = httpc:request(get, Request, [], []),
  
positive.code: 	Encodekey = base64:encode_to_string(string:concat(RestUser ++ ":", RestPass)),
  	AuthKey = "Basic " ++ Encodekey,
  	Authentication = {"authorization", AuthKey},
  	RequestUri = HostUrl ++ "/usageManagement/v1/usage?type=AAAAccountingUsage&sort=-date&filter=date,status,usageCharacteristic",
  	Request = {RequestUri, [Accept, Authentication]},
  	{ok, Result} = httpc:request(get, Request, [], []),
  	{{"HTTP/1.1", 200, _OK}, Headers, Body} = Result,
  
negative.code: 	Encodekey = base64:encode_to_string(string:concat(RestUser ++ ":", RestPass)),
  	AuthKey = "Basic " ++ Encodekey,
  	Authentication = {"authorization", AuthKey},
  	RequestUri = HostUrl ++ "/usageManagement/v1/usage?type=AAAAccessUsage&sort=-date&fields=date,status,usageCharacteristic",
  	Request = {RequestUri, [Accept, Authentication]},
  	{ok, Result} = httpc:request(get, Request, [], []),
  	{{"HTTP/1.1", 200, _OK}, Headers, Body} = Result,
  