Pseudo-Code as there are missing parameters in those functions, but it should convey the point. You could pass just the function name or the module and the function.
def test_1(), do: test(:name)
def test_2(), do: test(:other_name)
defp test(function_name) do
with {:ok, %{acl: "admin", info: _info}} <- TrangellApiGateway.User.Login.user_acl_check(allreq),
{:ok, ms} <- http_error_handeller(conn, apply(Post, function_name, [allreq]), "created") do
conn
|> put_status(201)
|> json(%{message: ms})
else
_ ->
conn
|> put_status(400)
|> json(%{error: "Your request is invalid."})
end
end