Hello, I am learning Prefect and I am trying to make a flow inside a flow which takes a value/parameter from the above flow. I got a database file with a flow which fetches a dataframe and I want to pass that data to a new flow in another file to work with the data. I came across this doc https://docs.prefect.io/core/idioms/flow-to-flow.html, but I am still not sure how you could share data between flows.

flow_database = StartFlowRun(flow_name="database", project_name="test", wait=True)
flow_transform = StartFlowRun(flow_name="transform", project_name="test", wait=True)

with Flow("parent-flow") as flow:
   
    data = flow_database() #get a dataframe from flow

    flow_transform(data) # take dataframe and use it another flow

How should I go about this?

Hey @Jonas If you want to pass data between different flows, then you have to use some sort of external storage (object storage, database, files, etc).

Hi @Jonas! This thread may be helpful for you: https://prefect-community.slack.com/archives/CL09KU1K7/p1618245651450000

Thanks for the reponse guys. The thread was usefull to read, but I guess I have to wait before this idea is implemented. I will try looking at external storage