Use Phoenix to SSH into a Server and Download a File to Users Local Machine

Download_Controller

defmodule AppWeb.DownloadController do
  use AppWeb, :controller


  def home(conn, %{"switch" => switch}) do


  {:ok, conn} =
    SSH.connect(
      # "sim.com.whatever"  
      user: "root",
      identity: "/home/user/.ssh/id_rsa_nop",
      save_accepted_host: false,
      silently_accept_hosts: true,
      user_interaction: false
    )

    file_path = "priv/test.json"

    {:ok, json_data} = conn

    case File.write(file_path, json_data) do
      :ok ->
        IO.puts("File written successfully")
        path = Application.app_dir(:app, "priv/test.json") #static directory
        send_download(conn, {:file, path})
        render(conn, :home, layout: false)

        {:error, reason} ->
        IO.puts("Failed to write to file: #{reason}")

    end


    render(conn, :home, layout: false)
  end
end

LiveView

defmodule AppWeb.SimsLive do
  use AppWeb, :live_view
  def mount(_params, _session, socket)  do
  {:ok, assign(socket, switches: ["sim-x", "sim-y", "sim-z"])}
  end

  def render(assigns) do
    ~H"""
      <ul>
      <%= for switch <- @switches do %>
      <a href={"/download/#{switch}"}><li><%=switch%></li></a>


        <% end %>
      </ul>

    """
  end
end