public static async Task <Either <PollingError, TransportMessage> > Poll(
string path,
IHttpService httpClient,
CancellationToken ct,
Func <string, Either <DeserializeError, TransportMessage> > deserializeTransportMessage)
{
Logger.Trace($"HttpChannelPoller.Poll GET {path}");
try
{
var content = await httpClient.GetBodyFrom(path, ct);
return(content.Match(
error => new Either <PollingError, TransportMessage>(PollingError.ErrorMakingHttpRequest),
c =>
{
var m = deserializeTransportMessage(c);
return m.Match(
left => new Either <PollingError, TransportMessage>(PollingError
.ErrorDeserializingContent),
right => new Either <PollingError, TransportMessage>(right));
}
));
}
catch (Exception e)
{
var allExceptionMessages = string.Join(Environment.NewLine,
ExceptionProcessor.GetAllExceptionMessages(e));
Logger.Error($"Polling Error: {allExceptionMessages}");
return(allExceptionMessages.Contains(
"No connection could be made because the target machine actively refused it")
? new Either <PollingError, TransportMessage>(PollingError.UnableToConnect)
: new Either <PollingError, TransportMessage>(PollingError.UnknownErrorOnGet));
}
}