changes

lib/ezcontainer_railway_web/plugs/anon_session.ex

@@ -0,0 +1,23 @@
+defmodule EzcontainerRailwayWeb.AnonSession do
+  import Plug.Conn
+
+  def init(default), do: default
+
+  def call(conn, _opts) do
+    case get_session(conn, :anon_id) do
+      nil -> 
+        anon_id = generate_anon_id()
+        conn
+        |> put_session(:anon_id, anon_id)
+        |> assign(:anon_id, anon_id)
+      id ->
+        conn |> assign(:anon_id, id)
+    end
+  end
+
+  defp generate_anon_id() do
+    :crypto.strong_rand_bytes(16)
+    |> Base.encode64()
+    |> binary_part(0, 16)
+  end
+end