Counters work, now for pubsub

main.ex

@@ -1,4 +1,6 @@
-Application.put_env(:sample, Sfe.Endpoint,
+counter = :counters.new(1, [])
+
+Application.put_env(:sfe, Sfe.Endpoint,
   http: [ip: {127, 0, 0, 1}, port: 5001],
   adapter: Bandit.PhoenixAdapter,
   server: true,
@@ -6,6 +8,8 @@ Application.put_env(:sample, Sfe.Endpoint,
   secret_key_base: String.duplicate("a", 64)
 )
 
+Application.put_env(:sfe, Sfe.HomeLive, counter_ref: counter)
+
 Mix.install([
   {:bandit, "~> 1.2"},
   {:jason, "~> 1.0"},
@@ -14,6 +18,7 @@ Mix.install([
   {:phoenix_pubsub, "~> 2.1"}
 ])
 
+
 defmodule Sfe.ErrorView do
   def render(template, _), do: Phoenix.Controller.status_message_from_template(template)
 end
@@ -21,8 +26,11 @@ end
 defmodule Sfe.HomeLive do
   use Phoenix.LiveView, layout: {__MODULE__, :live}
 
+  defp counter_ref(), do: Application.get_env(:sfe, __MODULE__)[:counter_ref]
+  defp counter_value(), do: :counters.get(counter_ref(), 1)
+
   def mount(_params, _session, socket) do
-    {:ok, assign(socket, :count, 0)}
+    {:ok, assign(socket, :count, counter_value())}
   end
 
   defp phx_vsn, do: Application.spec(:phoenix, :vsn)
@@ -53,11 +61,17 @@ defmodule Sfe.HomeLive do
   end
 
   def handle_event("inc", _params, socket) do
-    {:noreply, assign(socket, :count, socket.assigns.count + 1)}
+    dbg(:counters.add(counter_ref(), 1, 1))
+    counter_value(socket)
   end
 
   def handle_event("dec", _params, socket) do
-    {:noreply, assign(socket, :count, socket.assigns.count - 1)}
+    dbg(:counters.sub(counter_ref(), 1, 1))
+    counter_value(socket)
+  end
+
+  defp counter_value(socket) do
+    {:noreply, assign(socket, :count, counter_value())}
   end
 end
 
@@ -77,7 +91,7 @@ defmodule Sfe.Router do
 end
 
 defmodule Sfe.Endpoint do
-  use Phoenix.Endpoint, otp_app: :sample
+  use Phoenix.Endpoint, otp_app: :sfe
   socket("/live", Phoenix.LiveView.Socket)
   plug(Sfe.Router)
 end