public HttpResponseMessage Post
(IEnumerable <ExchangeData> exchanges)
{
if (exchanges == null)
{
return(new HttpResponseMessage(HttpStatusCode.BadRequest));
}
if (exchanges.Count() == 0)
{
return(new HttpResponseMessage(HttpStatusCode.BadRequest));
}
var json
= ExchangeDataJsonConverter.SerialiseEnumerable(exchanges);
var queueEntry = new IngressQueueEntry(
requestId: requestIdentityProvider.GetId()
// todo: change this to use a message identity provider
, messageId: Guid.NewGuid()
, message: json
, messageType: IngressGatewayTopic.Messages.Exchanges
);
Trace.TraceInformation($"[{queueEntry.RequestId}] - Publishing");
ingressGatewayQueue.Dispatch(queueEntry);
Trace.TraceInformation($"[{queueEntry.RequestId}] - Published");
return(new HttpResponseMessage(HttpStatusCode.OK));
}
// Convert the json into ExchangeData. Note we can not be sure
// the the json will deserialise into Exchange data so it is
// wrapped in an Either Monad.
//
// Note -
// The entire collection has to deserialise correctly this
// this should be changes as there is no reason for the
// list to be atomic. i.e. just because one record in
// the list is not valid json should not stop the other
// entries from being processed.
//
private IEnumerable <Either <StateChangeError, ExchangeData> > deserialise
(string message)
{
if (string.IsNullOrWhiteSpace(message))
{
throw new ArgumentNullException(nameof(message));
}
try {
var exchanges
= ExchangeDataJsonConverter
.DeserialiseEnumerable(message);
return
(exchanges
.Select(Either <StateChangeError, ExchangeData> .Right));
} catch {
return(new [] { Either <StateChangeError, ExchangeData> .Left(new ErrorDeserialisingExchangeDataRecievedMessage()) });
}
}
