How a Message Finds Its Saga
Correlation is the part of the saga pattern that fails silently. SagaId, SagaContext, the Empty-context trap that starts a new saga per message, and the one-method override that routes messages by their own content.
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The Transaction That Outlives the Request
Split one database into five services and the transaction you deleted does not disappear - it goes feral. On sagas, compensation, process managers, and Chronicle, the small open-source .NET library this series reads line by line.
Two Interfaces and a Base Class
Chronicle's entire programming model is Saga<TData>, ISagaStartAction, and ISagaAction. Building a full order-fulfilment saga to learn what Complete() promises, what Reject() actually does, and why a saga can have more than one beginning.