/// <summary>
/// Creates a <see cref="Flow{TIn,TOut,TMat}"/> for ack a single SQS message
/// at a time using a <paramref name="client"/>.
/// </summary>
public static Flow <MessageAction, ISqsAckResult, NotUsed> Default(IAmazonSQS client, string queueUrl,
SqsAckSettings settings = null)
{
settings = settings ?? SqsAckSettings.Default;
return(Flow.Create <MessageAction>()
.SelectAsync(settings.MaxInFlight, async action =>
{
switch (action)
{
case Delete delete:
{
var request = new DeleteMessageRequest(queueUrl, delete.Message.ReceiptHandle);
var response = await client.DeleteMessageAsync(request);
return (ISqsAckResult) new SqsDeleteResult(delete, response);
}
case ChangeMessageVisibility changeVisibility:
{
var request = new ChangeMessageVisibilityRequest(queueUrl, changeVisibility.Message.ReceiptHandle, (int)changeVisibility.VisibilityTimeout.TotalSeconds);
var response = await client.ChangeMessageVisibilityAsync(request);
return new SqsChangeMessageVisibilityResult(changeVisibility, response);
}
case Ignore ignore: return new SqsIgnoreResult(ignore);
default:
throw new NotSupportedException($"Message of type [{action.GetType()}] is not supported by the Akka.Streams.SQS.SqsAckFlow.Default method.");
}
}));
}
/// <summary>
/// Creates a <see cref="Sink{TIn,TMat}"/> for ack a single SQS message at a time using a <paramref name="client"/>.
/// </summary>
public static Sink <MessageAction, Task> Default(IAmazonSQS client, string queueUrl, SqsAckSettings settings = null) =>
SqsAckFlow.Default(client, queueUrl, settings)
.ToMaterialized(Sink.Ignore <ISqsAckResult>(), Keep.Right);
