sarat1669
I want to know if we can implement flow based programming using a graph. Where each node is a process by itself, and the graph can be dynamic in nature. I’m not sure how I can achieve this in elixir. Please let me know your thoughts.
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jgonet
If you use Supervision tree you have - you guessed it, tree. Maybe that’s a partial solution?
tty
The quick answer is yes. How would you use this graph flow based programming ?
sarat1669
@tty, I basically want to create REST API’s using the graphs.
Qqwy
Take a look at the flow library. It might provide the tools you are looking for
.
sarat1669
flow isn’t related to the FBP paradigm
tty
I still don’t quite get it. Are you intending each graph node as a state ? The edges as transitions to that state ?
sarat1669
I want to create something like this
Each node being a function
tty
Yes that looks very possible. If each node is a function you have the choice of having an Elixir process handle one function or you can mimic all of these within a FSM. Unfortunately Elixir doesn’t have a corresponding Erlang gen_fsm / gen_statem and will have to use the Erlang behaviours.
sarat1669
I think state machines aren’t the answer to this. As we might me dealing with a function which requires more than one input argument, and they are waiting for the output from a different node, which can be of asynchronous nature.
tty
Ok. Go with GenServer to begin with and model a simple system. It looks very doable.