/// <summary>
/// The message loop to process fluent requests from REST endpoint.
/// </summary>
/// <param name="cancellationToken">task cancellation token</param>
/// <returns></returns>
private async Task RunAsync(CancellationToken cancellationToken = default(CancellationToken))
{
Console.WriteLine("\nStarting Message loop...!\n");
var channel = await RequestChannel.CreateAsync(cancellationToken);
while (!cancellationToken.IsCancellationRequested)
{
var nextRequest = await channel.TryReadNextAsync(cancellationToken);
if (nextRequest != null)
{
Console.WriteLine($"Received request: {nextRequest.RequestId}");
//
// Don't call await here. Since this call is happening in the message loop
// the parent method will not be returned. By not calling await, we can
// prcoess requests concurrenlty. With await the requests will be processed
// async-serially.
//
HandleRequestAsync(nextRequest.RequestId, nextRequest.RequestModel, cancellationToken);
}
await Task.Delay(TimeSpan.FromSeconds(3), cancellationToken);
}
Console.WriteLine("\nMessage loop Stopped...!\n");
}
public async Task <IActionResult> Post([FromBody] FluentRequestModel fluentRequestPayload)
{
if (fluentRequestPayload == null)
{
return(BadRequest(new Exception("Failed to parse the json payload, make sure it is valid")));
}
var channel = await RequestChannel.CreateAsync();
var requestId = await channel.WriteAsync(fluentRequestPayload);
var pollingUrl = Link($"GetCreateStatus/{requestId}");
HttpContext.Response.Headers["Location"] = pollingUrl;
return(Ok(new BeginCreateResponse(pollingUrl)));
}
