public static async Task <SearchFlightResult> RunOrchestrator(
[OrchestrationTrigger] DurableOrchestrationContext context)
{
var searchFlightCommand = context.GetInput <SearchFlightCommand>();
var searchFlightTask = context.CallActivityAsync <IEnumerable <FlightSearchResultItem> >(nameof(SearchFlightActivity), searchFlightCommand);
var searchHotelsTask = context.CallActivityAsync <IEnumerable <HotelSearchResultItem> >(nameof(SearchHotelActivity), searchFlightCommand);
var searchTicketTask = context.CallActivityAsync <IEnumerable <TicketSearchResultItem> >(nameof(SearchTicketActivity), searchFlightCommand);
var result = new SearchFlightResult()
{
SearchId = searchFlightCommand.SearchId,
};
// Optionally search for tickets, but do not wait longer than 5 seconds
using (var timeoutCts = new CancellationTokenSource())
{
var ticketSearchTimeoutTask = context.CreateTimer(context.CurrentUtcDateTime.AddSeconds(10), timeoutCts.Token);
await Task.WhenAll(new Task[] { searchFlightTask, searchHotelsTask });
var winner = await Task.WhenAny(searchTicketTask, ticketSearchTimeoutTask);
if (winner == searchTicketTask)
{
result.Tickets = searchTicketTask.Result;
}
if (!ticketSearchTimeoutTask.IsCompleted)
{
timeoutCts.Cancel();
}
}
result.Flights = searchFlightTask.Result;
result.Hotels = searchHotelsTask.Result;
result.SearchTime = (int)DateTime.UtcNow.Subtract(context.CurrentUtcDateTime).TotalMilliseconds;
if (!string.IsNullOrEmpty(searchFlightCommand.ReturnUrl))
{
var callReturnActivityCommand = new CallReturnActivityCommand()
{
ReturnUrl = searchFlightCommand.ReturnUrl,
Result = result
};
await context.CallActivityAsync <bool>(nameof(CallReturnUrlActivity), callReturnActivityCommand);
}
return(result);
}
public static async Task <bool> CallReturnUrlActivity([ActivityTrigger] CallReturnActivityCommand callReturnActivityCommand, TraceWriter log)
{
try
{
var response = await HttpClientFactory.Create().PostAsJsonAsync(callReturnActivityCommand.ReturnUrl, callReturnActivityCommand.Result);
if (response.IsSuccessStatusCode)
{
return(true);
}
}
catch (Exception ex)
{
log.Error("Calling return url", ex);
}
return(false);
}
