Hi, Is there a way to trigger a flow/s from another flow automatically when it has finished?

This is one way to achieve it

Hi, thanks for answering! couple of questions: 1. does this also apply if i have flow_a that is a prerequisite for flow_b & flow_c (where flows b + c are not related or connected in any way) 2. when you say

flow_b.py

will then interrogate

.flow/

to look for the highest

.flow/FlowA<runid>

file, we are talking that it will query for my namespaced flow highest run-id, right? 3. Does flow_b know automatically that flow_a is its prerequisite, or i need to mention that in some way?

I second these questions. thanks for asking 🤗

yes! Great timing with the question! There’s a

@trigger_on_finish

decorator that allows you to launch a flow on Argo Workflows when another finishes. It’s very new - we’ll be officially announcing it in a few days excited It’ll show up in docs then too

Yep, I have noticed it in the latest version and tried to use it but I’m missing some env vars that relates to Argo events. I still need to check out the values for them Great, Thanks! Can’t wait 👌

even triggering is finally available! https://docs.metaflow.org/production/event-triggering/

I just saw it! 🤩 thanks!! I went over it and wanted to ask if we can have Multiple (optional) events that will trigger the flow with multiple configs: @trigger(events=[“first event”, “second event”]) (And have multiple flows being triggered) Or alternatively if I can pass metadata for one event? (and I will post several events to trigger the flow multiple times)) I’m asking cause I have a generic flow that runs a certain logic (importing the logic on the fly) depends on input params, and I want to see if I can trigger multiple flows like that 😋

you can think of event name as "a topic" in event-bus terms, so you define one topic you depend on but then each event instance can have an arbitrary payload that configures the logic on the fly

Interesting! Thanks, I think it will serve my needs 🙏