Dynamically adding tasks to Workflow while having multiple concurrrent executions

[taythebot]

The documentation below show that you can add dynamic tasks inside the workflow itself. If I have workflow A and there are 2 concurrent workflow executions does modifying the workflow tasks from one of the executions affect the other execution? Or is it contained to that specific execution?

Documentation: https://riverqueue.com/docs/pro/workflows#adding-tasks-to-an-existing-workflow

[bgentry]

Each workflow instance is totally independent. There's not actually anything linking them together other than the workflow ID, which means that a single workflow will contain only the jobs that you inserted as part of it, or which you added to it later during its execution.

I'll see if I can work something about this into the docs, thank you for the question!

[sdil]

Does this means that I can do Saga pattern in River Workflow? It would be great if it's mentioned in the doc with example as well 🙏

[bgentry]

I wasn't familiar with that term and it's my first time reading about it, but yes, that seems doable as long as you accept that each database will be operating independently. And you also need to design for idempotent retryable jobs given this is an at-least-once system.