In one of my previous articles, we explored how to handle Exceptions in WCF RESTful services. In this article the focus is same to handle exceptions but for ASP.NET Web API service. HttpResponseException class plays its role to return HTTP status code as well as further exception details to client. We can simply return respective error status code from Web API service instead of a 500 generic error code i.e. Internal Server Error. Here we will implement exception handling for the same ASP.NET Web API service created earlier in a tutorial i.e. "Simply create ASP.NET Web API service with all CRUD operations". Now, we have Web API service controller StudentController having GET method taking "Id" as parameter and returns a student against it. If student doesn't exists against a provided student Id, then we can handle and throw the exception with respective status code i.e. "Not Found".


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