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Hi,

I'm new to prefect and I am facing an issue.

I have a flow A which takes a country_code as a paremeter. I would like to know how to map the flow A to a list of  country_code ?

Currently, I was thinking triggering the flow A by mapping the flow A to each country_code specified in a flow B (as shown in the images)

Thanks by advance

Hi <@U033ERRTF5E>, it is a bit less straightfroward to do it with a subflow if you can avoid it because you need to use the `get_task_run_result` task in order to pull it out back into the main Flow.

It will be easier if you could capture this in a task and use the task int he main flow.

Hi <@U01QEJ9PP53>,                                                      Do you have an example to illustrate what you suggest ?

There is an example in <https://www.prefect.io/blog/prefect-0-15-0-a-new-flow-run-experience/|this> blog. Look for the `get_task_run_result`

I don't understand how this helps in my case where i want "to map" a flow

Sorry I’m confused here. You can just do `create_flow_run.map()` right?

something like this?
```@task
def get_params_list(codes):
    res = []
    for code in codes:
        res.append({"country_code":code}
    return res

with Flow(...) as flow:
    codes = Parameter("codes", [123, 456])
    params_list = get_params_list(codes)
    create_flow_run.map(flow_name=unmapped("name"), project_name=unmapped("name"), parameters=params_list)```


It's exactly what I was searching for ! Thx you <@U01QEJ9PP53> :+1: