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How do I show error messages in Web API?
You can use the CreateErrorResponse extension method in your Web API controller method to return meaningful error codes and error messages. Note that the CreateErrorResponse method creates an HttpError object and then wraps it inside an HttpResponseMessage object.
How Restful Web Services display custom error messages?
To throw a custom error in your REST API, do the following:
- Create a User Exception for the custom error you want to throw.
- Go to the flow of the REST API method or the callback (such as OnAuthentication or OnRequest) where you want to throw the error and add a Raise Error element.
What is not advantage of statelessness in RESTful web services?
This restriction is called Statelessness. Each request from the client to server must contain all of the information necessary to understand the request, and cannot take advantage of any stored context on the server. Session state is therefore kept entirely on the client.
What is the status of Microsoft webservice service call?
Http status code: 500, Request id: b89d0392-da60-467d-b217-081f5e84b5d7, Timestamp: Thu, 06 Nov 2014 07:32:44 GMT, Error code: ExecutionError, Extended information: Exception of type ‘Microsoft.MachineLearning.Execution.Frontend.ErrorHandling.RequestResponseServiceException’ was thrown.
When do you call Web Service, Access Denied?
Exception Details: System.Net.WebException: The request failed with HTTP status 401: Access Denied. When Anonymous access authentication is turned off for the Web service application, all the caller applications must provide the credentials before making any request.
How to call web service while anonymous authentication is turned off?
Assign the DefaultCredentials to the Credentials property of the Web Service Proxy class to call the Web service while Anonymous access authentication is turned off. The DefaultCredentials property of the CredentialCache class provides system credentials of the security context where the application is running. To do this, use the following code:
When does an unhandled exception occur in a web request?
Description: An unhandled exception occurred during the execution of the current Web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Net.WebException: The request failed with HTTP status 401: Access Denied.