GE Industrial Solutions WattStation Connect Web Services Guide - Manual (Page 16)

WattStation™ Connect Web Services Guide
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Authentication and Error Handling
If an error occurs during the processing of a service, a generic exception of type
EVSEWebServiceException
is thrown. The EVSEWebServiceException exception
represents all exceptions that can occur during a web service call.
To understand why the exception was thrown, you must look at attributes within the
EVSEWebServiceException . The attributes “message” and “EVSEError” provide relevant information
regarding the cause of the exception.
 The attribute „message‟ is the string description of the exception.
 The attribute „errorCode‟ within the „EVSEError‟ object is the unique integer value
representing the reason for this exception.
Listed below are the types of errors that can occur during the processing of a service, along with
the error message and error code values.
Table 7: Error codes and corresponding error messages
Code Error message Description
100 Invalid username or password Bad login credentials
101 Insufficient privileges to perform
this operation The user does not have permissions to access
this web service.
103 Service Exception General exception thrown when the backend
service cannot perform the operation because of
an internal error.
104 Station not found The station serial number was not found.
105 Invalid parameter A parameter that was passed to the service is
invalid.
If your client does not support exceptions, then exceptions are returned to the client as part of the
SOAP envelope response. In the SOAP envelope, there will be an element <soap:fault>. The
<soap:fault> element will hold the reason for the exception and the error code.