Add Guardian.DB to track API tokens.

lib/link_shortener_web/auth/guardian.ex

@@ -28,4 +28,28 @@ defmodule LinkShortenerWeb.Auth.Guardian do
     {:ok, token, _claims} = encode_and_sign(user)
     {:ok, user, token}
   end
+
+  def after_encode_and_sign(resource, claims, token, _options) do
+    with {:ok, _} <- Guardian.DB.after_encode_and_sign(resource, claims["typ"], claims, token) do
+      {:ok, token}
+    end
+  end
+
+  def on_verify(claims, token, _options) do
+    with {:ok, _} <- Guardian.DB.on_verify(claims, token) do
+      {:ok, claims}
+    end
+  end
+
+  def on_refresh({old_token, old_claims}, {new_token, new_claims}, _options) do
+    with {:ok, _, _} <- Guardian.DB.on_refresh({old_token, old_claims}, {new_token, new_claims}) do
+      {:ok, {old_token, old_claims}, {new_token, new_claims}}
+    end
+  end
+
+  def on_revoke(claims, token, _options) do
+    with {:ok, _} <- Guardian.DB.on_revoke(claims, token) do
+      {:ok, claims}
+    end
+  end
 end

lib/link_shortener_web/telemetry.ex

@@ -11,9 +11,12 @@ defmodule LinkShortenerWeb.Telemetry do
     children = [
       # Telemetry poller will execute the given period measurements
       # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
-      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
+      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000},
       # Add reporters as children of your supervision tree.
       # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
+
+      # to sweep the REST API tokens:
+      {Guardian.DB.Sweeper, [interval: 60 * 60 * 1000]} # 1 hour
     ]
 
     Supervisor.init(children, strategy: :one_for_one)