Confusion about how GenStage demand mechanism works

[peerreynders]

Welcome to the forum!

Just from a quick scan of your code I don’t see the Producer managing demand.

I recommend reviewing this topic:

Could you explain min_demand and max_demand in GenStage?

I’m trying to wrap my head around GenStage’s min_demand and max_demand but after going through existing topics, blog posts and official documentation, it is still not very clear to me how to think about them and how they work in practice. I’m experimenting with the simplest possible case: a producer and a single consumer: defmodule Producer do use GenStage require Logger def start_link(_args) do GenStage.start_link(__MODULE__, :ok, name: __MODULE__) end def init(:ok) do {:p…