Dead Letter Channel Generator

[GenerateDeadLetterChannel] emits a factory for DeadLetterChannel<TPayload> from a partial host and a store factory method.

using PatternKit.Generators.Messaging;
using PatternKit.Messaging.Reliability;

[GenerateDeadLetterChannel(
    typeof(FulfillmentCommand),
    FactoryName = "CreateChannel",
    ChannelName = "fulfillment-dead-letter",
    Source = "checkout.fulfillment",
    IdPrefix = "fulfillment-dead")]
public static partial class FulfillmentDeadLetters
{
    [DeadLetterStoreFactory]
    private static IDeadLetterStore<FulfillmentCommand> CreateStore()
        => new InMemoryDeadLetterStore<FulfillmentCommand>();
}

The generated factory:

creates a named dead-letter channel
records the configured source in captured metadata
uses the marked store factory for application-owned persistence
generates deterministic ids from the configured prefix and message id
enables exception detail capture by default

Diagnostics

ID	Meaning
`PKDL001`	The host type marked with `[GenerateDeadLetterChannel]` must be partial.
`PKDL002`	The host must declare exactly one `[DeadLetterStoreFactory]` method.
`PKDL003`	The store factory must be static, parameterless, and return `IDeadLetterStore<TPayload>`.

Example

See Generated Dead Letter Channel.

Table of Contents

Dead Letter Channel Generator

Diagnostics

Example