Hi there - I have a function called

main

it runs a

flow

. If I add a

@task

decorator to

main

is that an acceptable way to run a flow from a flow. or do you see any issues? ..

For purely local execution with Prefect Core I’m sure it will run just fine, but I’m not sure I see the benefit

Oh boy 🙂 I guess I dont understand some things. I understood from the documentation that to run a flow in production there needs to be a function wrapping

flow.run()

? And so if I have another flow that needs to run another flow then i should just call the wrapper function.

No worries! There’s nothing inherently wrong with it

@itay livni if you combined your flows you could use something like a trigger https://docs.prefect.io/core/concepts/execution.html#triggers on the first task of your “second” flow. e.g. make the first task of what would be your second flow only execute if the entire upstream is successful

@task(trigger=all_successful)
def the_task():
    # do something interesting
    pass

@josh Hi - The two flows are separate programs if you will. They can be run independently or together. See non step function diagram. The

make nodes

function is a

mapped task

. Think of a knowledge graph. You build one node. It generates new nodes to make and so on. Does that make sense?

Ah I see, it’s a somewhat cyclical graph. Have you seen the looping mechanism in core? https://docs.prefect.io/core/examples/task_looping.html#task-looping This would be useful if you had a task that you want to keep iterating/checking over and over again until some condition is met

Thank you. I looked at it. Not quite sure I understand it. What are the advantages to using loop over using a trigger?

Looping i would say is used in your use case of creating a flow from a task where the task could loop and run other flows until a specific condition is met. The trigger would be useful in the case you somehow combined these flows but that doesn't seem to be like the desired outcome.

@Chris White would love to do a hangout. Send over a time that is convenient for you.

@itay livni I think you meant to tag @Chris White?

yes thanks!