How can I get the state data of a running saga?

[chenzuo]

How can I get the current status and current step when using UseInMemoryPersistence() and UseInMemoryTransport()? It may run a long time across multiple steps in the same saga. I only want to see the running data, but I don’t know how to do that. Please give me some tips. Thanks a lot!

[chenzuo]

How to inspect in-memory saga data at runtime (InMemoryPersistence/InMemoryTransport)?

[mizrael]

hi @chenzuo ! Unless you directly debug the application, or inject an ILogger into your saga and log the state, there's no immediate visibility on the data. If you were using a different persistence library, like the SQL ones, you could check the tables.

I have been toying with the idea of building some kind of reporting dashboard, if you tell me more about your use case I could try to fit it it

[chenzuo]

hi @mizrael! My use case is the following: in some scenarios, we only need to track the processing state of each step of a critical Saga – for example, which step it has currently reached and what the intermediate data at that step is。 We just need an API that can asynchronously query this state.

These pieces of state can have an expiration policy, such as 3 days or 50,000 records (whichever comes first). Once the limit is reached, we can simply treat the older entries as expired. The important part is that this state can be written immediately to an in‑memory queue or a high‑performance cache。 However, we do not care whether this state has persisted to a database。 If the application crashes or is shut down, we accept that these state records are lost。 We also do not need the application, on restart, to restore the Saga state from before the shutdown。

This is the scenario we’re dealing with。 We are building a financial and gaming system, which might sound surprising because people usually expect strong persistence guarantees there, but we really do have this kind of use case。