identify phoenix_live_view transactions

examples/apps/phx_example/lib/phx_example_web/live/error_live.ex

@@ -0,0 +1,12 @@
+defmodule PhxExampleWeb.ErrorLive do
+  use PhxExampleWeb, :live_view
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <h1><%= @some_variable %></h1>
+    </div>
+    """
+  end
+end

examples/apps/phx_example/lib/phx_example_web/live/home_live.ex

@@ -0,0 +1,13 @@
+defmodule PhxExampleWeb.HomeLive do
+  use PhxExampleWeb, :live_view
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <h1>Home</h1>
+      <p>Some content</p>
+    </div>
+    """
+  end
+end

examples/apps/phx_example/lib/phx_example_web/router.ex

@@ -13,6 +13,9 @@ defmodule PhxExampleWeb.Router do
   scope "/phx", PhxExampleWeb do
     pipe_through :browser
 
+    live "/home", HomeLive, :index
+    live "/live_error", ErrorLive, :index
+
     get "/error", PageController, :error
     get "/:foo", PageController, :index
   end

examples/apps/phx_example/test/phx_example_test.exs

@@ -28,6 +28,29 @@ defmodule PhxExampleTest do
     assert event[:status] == 200
   end
 
+  test "Phoenix metrics generated for LiveView" do
+    TestSupport.restart_harvest_cycle(Collector.Metric.HarvestCycle)
+    TestSupport.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
+
+    {:ok, %{body: body}} = request("/phx/home")
+    assert body =~ "Some content"
+
+    metrics = TestSupport.gather_harvest(Collector.Metric.Harvester)
+
+    assert TestSupport.find_metric(
+             metrics,
+             "WebTransaction/Phoenix/PhxExampleWeb.HomeLive/index"
+           )
+
+    [[_, event]] = TestSupport.gather_harvest(Collector.TransactionEvent.Harvester)
+
+    assert event[:"phoenix.endpoint"] == "PhxExampleWeb.Endpoint"
+    assert event[:"phoenix.router"] == "PhxExampleWeb.Router"
+    assert event[:"phoenix.controller"] == "Phoenix.LiveView.Plug"
+    assert event[:"phoenix.action"] == "index"
+    assert event[:status] == 200
+  end
+
   @tag :capture_log
   test "Phoenix error" do
     TestSupport.restart_harvest_cycle(Collector.Metric.HarvestCycle)
@@ -54,6 +77,32 @@ defmodule PhxExampleTest do
     assert event[:error]
   end
 
+  @tag :capture_log
+  test "Phoenix LiveView error" do
+    TestSupport.restart_harvest_cycle(Collector.Metric.HarvestCycle)
+    TestSupport.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
+
+    {:ok, %{body: body, status_code: 500}} = request("/phx/live_error")
+
+    assert body =~ "Opps, Internal Server Error"
+
+    metrics = TestSupport.gather_harvest(Collector.Metric.Harvester)
+
+    assert TestSupport.find_metric(
+             metrics,
+             "WebTransaction/Phoenix/PhxExampleWeb.ErrorLive/index"
+           )
+
+    [[_, event]] = TestSupport.gather_harvest(Collector.TransactionEvent.Harvester)
+
+    assert event[:status] == 500
+    assert event[:"phoenix.endpoint"] == "PhxExampleWeb.Endpoint"
+    assert event[:"phoenix.router"] == "PhxExampleWeb.Router"
+    assert event[:"phoenix.controller"] == "Phoenix.LiveView.Plug"
+    assert event[:"phoenix.action"] == "index"
+    assert event[:error]
+  end
+
   test "Phoenix route not found" do
     TestSupport.restart_harvest_cycle(Collector.Metric.HarvestCycle)
     TestSupport.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)

lib/new_relic/telemetry/phoenix.ex

@@ -84,6 +84,10 @@ defmodule NewRelic.Telemetry.Phoenix do
     :ignore
   end
 
+  defp phoenix_name(%{phoenix_live_view: {module, action, _, _}}) when is_atom(action) do
+    "/Phoenix/#{inspect(module)}/#{action}"
+  end
+
   defp phoenix_name(%{plug: controller, plug_opts: action}) when is_atom(action) do
     "/Phoenix/#{inspect(controller)}/#{action}"
   end