Outbox Options

var configuration = 
    new ConfigurationBuilder()
        .AddJsonFile("appsettings.json").Build();

services.AddHopper(builder => 
{
    builder.Options.Outbox = new OutboxOptions
    {
        WorkTransportUri = new Uri("queue://configuration/outbox-work"),
        ErrorTransportUri = new Uri("queue://configuration/outbox-error"),
        ThreadCount = 25,
        IdleDurations = new List<TimeSpan>
        {
            TimeSpan.FromMilliseconds(250),
            TimeSpan.FromSeconds(10),
            TimeSpan.FromSeconds(30)
        },
        IgnoreOnFailureDurations = new List<TimeSpan>
        {
            TimeSpan.FromSeconds(10),
            TimeSpan.FromSeconds(30)
        },
        MaximumFailureCount = 2
    };
    
    // or bind from configuration
    configuration
        .GetSection(HopperOptions.SectionName)
        .Bind(builder.Options);
});

The default JSON settings structure is as follows:

{
  "Shuttle": {
    "Hopper": {
      "Outbox": {
        "WorkTransportUri": "queue://configuration/outbox-work",
        "ErrorTransportUri": "queue://configuration/outbox-error",
        "ThreadCount": 25,
        "IdleDurations": [
          "00:00:00.250",
          "00:00:10",
          "00:00:30"
        ],
        "IgnoreOnFailureDurations": [
          "00:30:00",
          "01:00:00"
        ],
        "MaximumFailureCount": 25
      }
    }
  }
}

Options

Options	Default	Description
ThreadCount	1	The number of worker threads that will service the work transport.
IdleDurations	250ms\*4,500ms\*2,1s,5s	A list of TimeSpan instances. Each successive idle processing run will move to the next entry in the list; resets as soon as a message is processed.
IgnoreOnFailureDurations	30s,2m,5m	A list of TimeSpan instances. Each failure will move to the next entry.
MaximumFailureCount	5	The maximum number of failures that are retried before the message is moved to the error transport if there is one and the transport is not a stream; else the message is released.