/// <summary>
/// Asynchronously gets the response for this request.
/// </summary>
/// <returns>The response message.</returns>
/// <remarks>
/// This method is not part of the IODataRequestMessage interface. It's here to make the usage of these classes easier.
/// Each implementation of the interfaces is expected to provide its own way to create the instances and or get them somewhere.
/// </remarks>
public async Task <IODataResponseMessageAsync> GetResponseAsync()
{
WebException webException;
try
{
HttpWebResponse webResponse = (HttpWebResponse)(await this.webRequest.GetResponseAsync());
return(new ClientHttpResponseMessage(webResponse));
}
catch (WebException exception)
{
webException = exception;
}
if (webException.Response != null)
{
// If there is an error response, try to read it.
IODataResponseMessageAsync errorResponseMessage = new ClientHttpResponseMessage((HttpWebResponse)webException.Response);
using (ODataMessageReader messageReader = new ODataMessageReader(errorResponseMessage))
{
// The payload kind detection will determine if the payload is an error by looking at the content type (and possibly even the payload).
if ((await messageReader.DetectPayloadKindAsync()).Any(payloadKindDetectionResult => payloadKindDetectionResult.PayloadKind == ODataPayloadKind.Error))
{
// Construct the error message by concatenating all the error messages (including the inner ones).
// Makes it easier to debug problems.
ODataError error = await messageReader.ReadErrorAsync();
// If it is an error throw the ODataErrorException, it's easier to recognize and also read.
throw new ODataErrorException(CreateODataErrorExceptionMessage(error), error);
}
}
}
throw webException;
}
