public Outcome <HttpReply> Send(HttpRequestSpec spec)
{
try
{
var request = CreateRequest(spec);
var response = client.SendAsync(request).Result;
var descriptor = new HttpReplyStatus
(
ProtocolCode: HttpResultCodes.Find((int)response.StatusCode),
SystemCode: SystemResultCodes.Success
);
var data = response.Content.ReadAsStringAsync().Result;
var notification = response.IsSuccessStatusCode
? none <IApplicationMessage>()
: some(HttpStatusMessages.ErrorStatus(descriptor, data));
return(success(
new HttpReply(descriptor, data),
notification.ValueOrDefault(ApplicationMessage.Empty)
));
}
catch (Exception e)
{
return(InterpretError(e, spec));
}
}
static Outcome <HttpReply> InterpretWebException(WebException we, HttpRequestSpec spec)
{
try
{
//If we can successfully retrieve an error response, then whatever
//happened is not considered a systemic failure
var response = we.Response;
if (response == null)
{
return(SystemFailed(we, spec));
}
using (var stream = response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
var data = reader.ReadToEnd();
var descriptor = new HttpReplyStatus
(
ProtocolCode: response.GetHttpStatusCode(),
SystemCode: SystemResultCodes.Success
);
return(new Outcome <HttpReply>(true, new HttpReply(descriptor, data),
HttpStatusMessages.ErrorStatus(descriptor, data)));
}
}
catch (Exception e)
{
return(SystemFailed(e, spec));
}
}
private static HttpRequestMessage CreateRequest(HttpRequestSpec spec)
{
var message = new HttpRequestMessage(spec.Method, spec.RequestUri.PathAndQuery);
if (spec.Method != HttpMethods.DELETE)
{
var parameters = spec.Parameters.Render(false);
message.Content = new StringContent(parameters, Encoding.UTF8, HttpMediaTypes.UrlEncoded);
}
return(message);
}
static Outcome <HttpReply> InterpretError(Exception e, HttpRequestSpec spec)
=> e is WebException?InterpretWebException(e as WebException, spec)
: SystemFailed(e, spec);
static Outcome <HttpReply> SystemFailed(Exception e, HttpRequestSpec spec) => Outcome.Fail <HttpReply>(HttpStatusMessages.SystemError(e.ToString()));