public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "hellocities")] HttpRequest req,
[DurableClient] IDurableClient client,
ILogger log)
{
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
int? numberOrchestrations = string.IsNullOrEmpty(requestBody) || requestBody == "null" ? null : (int?) JsonConvert.DeserializeObject<int>(requestBody);
TimeSpan timeout = TimeSpan.FromSeconds(200);
if (!numberOrchestrations.HasValue)
{
// we are running a single orchestration.
string orchestrationInstanceId = await client.StartNewAsync(nameof(HelloSequence));
var response = await client.WaitForCompletionOrCreateCheckStatusResponseAsync(req, orchestrationInstanceId, timeout);
return response;
}
else
{
// call several orchestrations in a loop and wait for all of them to complete
var testname = Util.MakeTestName(req);
try
{
log.LogWarning($"Starting {testname} {numberOrchestrations.Value}...");
var stopwatch = new System.Diagnostics.Stopwatch();
stopwatch.Start();
var tasks = new List<Task<bool>>();
async Task<bool> RunOrchestration(int iteration)
{
var startTime = DateTime.UtcNow;
var orchestrationInstanceId = $"Orch{iteration}";
log.LogInformation($"{testname} starting {orchestrationInstanceId}");
await client.StartNewAsync(nameof(HelloSequence), orchestrationInstanceId);
await client.WaitForCompletionOrCreateCheckStatusResponseAsync(req, orchestrationInstanceId, timeout);
if (DateTime.UtcNow < startTime + timeout)
{
log.LogInformation($"{testname} completed {orchestrationInstanceId}");
return true;
}
else
{
log.LogInformation($"{testname} timeout {orchestrationInstanceId}");
return false;
}
}
for (int i = 0; i < numberOrchestrations; i++)
{
tasks.Add(RunOrchestration(i));
}
await Task.WhenAll(tasks);
stopwatch.Stop();
int timeouts = tasks.Count(t => !t.Result);
double elapsedSeconds = elapsedSeconds = stopwatch.Elapsed.TotalSeconds;
log.LogWarning($"Completed {testname} with {timeouts} timeouts in {elapsedSeconds}s.");
object resultObject = timeouts > 0 ? (object)new { testname, timeouts } : new { testname, elapsedSeconds };
string resultString = $"{JsonConvert.SerializeObject(resultObject, Formatting.None)}\n";
return new OkObjectResult(resultString);
}
catch (Exception e)
{
return new ObjectResult(
new
{
testname,
error = e.ToString(),
});
}
}
}