Odata exception pass from server to client.

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OData

Hi,

I am trying to find the best way to pass exceptions or messages from my Odata Service back to an Odata web forms client.

On the service, when I call this controller:

public async Task<ihttpactionresult> Post(Products product)
{

var message = "Product with id = not found";
throw new HttpResponseException(
Request.CreateErrorResponse(HttpStatusCode.NotImplemented, message));
}

It throws a HttpResponse exeption with the HttpError in the content as expected.

However, on the client side, the exception arrives as either a DataServiceRequestException or DataServiceQueryException and the inner exception message is formatted as follows:


{
"odata.error":{
"code":"","message":{
"lang":"en-US","value":"Product with id = not found"
}
}
}

So, how do I easily extract the message from the JSON?

Is this the best way to do it?

Should I just return a response code and put the message in the headers?

Does anyone have an example of a webforms client with error management that they can point me to please?

I have spent hours on this and don't know what to do.

Thanks
Jeff