I’m experimenting with Hexagonal / Clean Architecture in Elixir. The classic Behaviour + Impl split works great for mocking and isolating IO—here’s a trimmed-down example from our SFTP adapter:
elixir
# Port (Behaviour)
defmodule Core.SFTP.Port do
@callback connect(map()) :: {:ok, term()} | {:error, term()}
@callback write(Path.t(), iodata()) :: :ok | {:error, term()}
@callback disconnect(term()) :: :ok | {:error, term()}
end
# Adapter (Impl)
defmodule Core.SFTP.Live do
@behaviour Core.SFTP.Port
@impl true
def connect(conf), do: SFTPClient.connect(conf)
@impl true
def write(path, data), do: SFTPClient.write_file(path, data)
@impl true
def disconnect(conn), do: SFTPClient.disconnect(conn)
end
I wanted to know what are architectural patterns in elixir , apart from behaviour and impl pattern