The most appropriate way to interop the Erlang VM from another programming language in 2020

[Dmytro Lytovchenko]

 I created Pyrlang.
Pyrlang implements Erlang network node over TCP in Python, it supports OTP
23 last time i checked (other people contributed and made it work).
Yes probably the best way to access all features of a running Erlang node
from another language would be to implement a network node in your language.

Erlport runs as an Erlang port, i.e. standard input/output with a spawned
process. This is very different from Pyrlang, also ports may be slow for
transferring large data and the transfer can only happen in one stream, but
nevertheless it is a valid way to communicate.

On Fri, 18 Dec 2020 at 12:40, L yrosgi <absente@REDACTED> wrote:

> For example, if I made a stand-alone programming language named Overlang,
> then I want:
>
> 1.      the ability that can send a message to an Erlang process and get
> the result back into the Overlang side
>
> 2.      realtime monitoring for the Erlang VM node
>
> 3.      RPC call <=> erlang function
>
>
>
> As an Erlang newbie, I have not a complete idea of how should I implement
> these features. Currently, I just found something like the Pyrlang and the
> Erlport. They used someway like the EPMD and the Erlang port protocol (I am
> not sure whether they using the same erlang technology so that I pointed
> out both). However, both of them start from older OTP versions (like OTP 19
> in 2016) and the Erlport seems stopped years ago. So I am not sure is it
> appropriate to use the two projects for reference.
>
>
>
> // Considered the Overlang as a new project, this time we only use the
> Erlang VM with the OTP version >= 23.
>
>
>
> The problem can be summarized in short:
>
> 1.      The way that the Pyrlang or the Erlport used whether the best
> practice to interop the Erlang VM from the outside
>
> 2.      If the [EPMD/Erlang port protocol] is the most appropriate way in
> the past, are there any important changes since the OTP 19?
>
>
>
> Thanks,
>
>
>
> L.
>
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