public static async Task <HttpResponseMessage> RunAsync(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "analyze")] HttpRequestMessage request,
TraceWriter log,
ExecutionContext context,
CancellationToken cancellationToken)
{
using (IUnityContainer childContainer = Container.CreateChildContainer().WithTracer(log, true))
{
// Create a tracer for this run (that will also log to the specified TraceWriter)
ITracer tracer = childContainer.Resolve <ITracer>();
tracer.TraceInformation($"Analyze function request received with invocation Id {context.InvocationId}");
tracer.AddCustomProperty("FunctionName", context.FunctionName);
tracer.AddCustomProperty("InvocationId", context.InvocationId.ToString("N"));
try
{
// Trace app counters (before analysis)
tracer.TraceAppCounters();
// Read the request
SmartSignalRequest smartSignalRequest = await request.Content.ReadAsAsync <SmartSignalRequest>(cancellationToken);
tracer.AddCustomProperty("SignalId", smartSignalRequest.SignalId);
tracer.TraceInformation($"Analyze request received: {JsonConvert.SerializeObject(smartSignalRequest)}");
// Process the request
ISmartSignalRunner runner = childContainer.Resolve <ISmartSignalRunner>();
List <SmartSignalResultItemPresentation> resultPresentations = await runner.RunAsync(smartSignalRequest, cancellationToken);
tracer.TraceInformation($"Analyze completed, returning {resultPresentations.Count} results");
// Return the generated presentations
return(request.CreateResponse(HttpStatusCode.OK, resultPresentations));
}
catch (Exception e)
{
// Handle the exception
TopLevelExceptionHandler.TraceUnhandledException(e, tracer, log);
// Return error status
return(request.CreateResponse(HttpStatusCode.InternalServerError, e.Message));
}
finally
{
// Trace app counters (after analysis)
tracer.TraceAppCounters();
}
}
}
/// <summary>
/// Run the signal, by delegating the call to the registered <see cref="ISmartSignalRunner"/>
/// </summary>
/// <param name="request">The signal request</param>
/// <param name="cancellationToken">The cancellation token</param>
/// <returns>A <see cref="Task{TResult}"/>, returning the result items presentations generated by the signal</returns>
private static async Task <List <SmartSignalResultItemPresentation> > RunSignalAsync(SmartSignalRequest request, CancellationToken cancellationToken)
{
ISmartSignalRunner smartSignalRunner = container.Resolve <ISmartSignalRunner>();
return(await smartSignalRunner.RunAsync(request, cancellationToken));
}