Phoenix LiveView instrumentation

README.md

@@ -84,6 +84,7 @@ Some common Elixir packages are auto-instrumented via [`telemetry`](https://gith
 
 * [`Plug`](https://github.com/elixir-plug/plug): See [NewRelic.Telemetry.Plug](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.Plug.html) for details.
 * [`Phoenix`](https://github.com/phoenixframework/phoenix): See [NewRelic.Telemetry.Phoenix](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.Phoenix.html) for details.
+* [`Phoenix LiveView`](https://github.com/phoenixframework/phoenix_live_view): See [NewRelic.Telemetry.PhoenixLiveView](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.PhoenixLiveView.html) for details.
 * [`Ecto`](https://github.com/elixir-ecto/ecto): See [NewRelic.Telemetry.Ecto](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.Ecto.html) for details.
 * [`Redix`](https://github.com/whatyouhide/redix): See [NewRelic.Telemetry.Redix](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.Redix.html) for details.
 * [`Finch`](https://github.com/sneako/finch): See [NewRelic.Telemetry.Finch](https://hexdocs.pm/new_relic_agent/NewRelic.Telemetry.Finch.html) for details.

config/config.exs

@@ -1,4 +1,8 @@
 import Config
 
-if Mix.env() == :test, do: import_config("test.exs")
-if File.exists?("config/secret.exs"), do: import_config("secret.exs")
+if Mix.env() == :test do
+  import_config("test.exs")
+else
+  if File.exists?("config/secret.exs"),
+    do: import_config("secret.exs")
+end

examples/apps/absinthe_example/test/absinthe_example_test.exs

@@ -43,7 +43,7 @@ defmodule AbsintheExampleTest do
 
     operation =
       Enum.find(spans, fn %{attributes: attr} ->
-        attr[:name] == "query:TestQuery"
+        attr[:name] == "Absinthe/Operation/query:TestQuery"
       end)
 
     one_resolver =

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

@@ -8,7 +8,10 @@ defmodule PhxExampleWeb.BanditEndpoint do
     same_site: "Lax"
   ]
 
-  socket "/live", Phoenix.LiveView.Socket, websocket: [connect_info: [session: @session_options]]
+  socket "/live",
+         Phoenix.LiveView.Socket,
+         websocket: [connect_info: [session: @session_options]],
+         longpoll: [connect_info: [session: @session_options]]
 
   plug Plug.Static,
     at: "/",

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

@@ -8,7 +8,10 @@ defmodule PhxExampleWeb.Endpoint do
     same_site: "Lax"
   ]
 
-  socket "/live", Phoenix.LiveView.Socket, websocket: [connect_info: [session: @session_options]]
+  socket "/live",
+         Phoenix.LiveView.Socket,
+         websocket: [connect_info: [session: @session_options]],
+         longpoll: [connect_info: [session: @session_options]]
 
   plug Plug.Static,
     at: "/",

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

@@ -1,12 +1,38 @@
 defmodule PhxExampleWeb.HomeLive do
   use PhxExampleWeb, :live_view
 
-  @impl true
+  def mount(_params, _session, socket) do
+    socket =
+      socket
+      |> assign(:content, "stuff")
+
+    {:ok, socket}
+  end
+
+  def handle_event("click", _params, socket) do
+    socket =
+      socket
+      |> assign(:content, "clicked")
+
+    Process.send_after(self(), :after, 1_000)
+    {:noreply, socket}
+  end
+
+  def handle_info(:after, socket) do
+    socket =
+      socket
+      |> assign(:content, "after")
+
+    {:noreply, socket}
+  end
+
   def render(assigns) do
     ~H"""
     <div>
       <h1>Home</h1>
       <p>Some content</p>
+      <p><%= @content %></p>
+      <div phx-click="click">Click me</div>
     </div>
     """
   end

examples/apps/phx_example/mix.exs

@@ -30,6 +30,7 @@ defmodule PhxExample.MixProject do
       {:phoenix_html, "~> 3.3"},
       {:phoenix_view, "~> 2.0"},
       {:phoenix_live_view, "~> 0.20"},
+      {:floki, ">= 0.30.0", only: :test},
       {:jason, "~> 1.0"},
       {:plug_cowboy, "~> 2.0"},
       {:bandit, "~> 1.0"}

examples/apps/phx_example/test/phx_example_test.exs

@@ -7,12 +7,18 @@ defmodule PhxExampleTest do
     TestHelper.simulate_agent_enabled()
   end
 
+  setup do
+    TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
+    TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
+    TestHelper.restart_harvest_cycle(Collector.SpanEvent.HarvestCycle)
+    TestHelper.restart_harvest_cycle(Collector.ErrorTrace.HarvestCycle)
+    NewRelic.DistributedTrace.BackoffSampler.reset()
+    :ok
+  end
+
   for server <- [:cowboy, :bandit] do
     describe "Testing #{server}:" do
       test "Phoenix metrics generated" do
-        TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
-
         {:ok, %{body: body}} = request("/phx/bar", unquote(server))
         assert body =~ "Welcome to Phoenix"
 
@@ -48,9 +54,6 @@ defmodule PhxExampleTest do
       end
 
       test "Phoenix metrics generated for LiveView" do
-        TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
-
         {:ok, %{body: body}} = request("/phx/home", unquote(server))
         assert body =~ "Some content"
 
@@ -71,23 +74,51 @@ defmodule PhxExampleTest do
       end
 
       test "Phoenix spans generated" do
-        TestHelper.restart_harvest_cycle(Collector.SpanEvent.HarvestCycle)
         {:ok, %{body: body}} = request("/phx/home", unquote(server))
         assert body =~ "Some content"
 
         span_events = TestHelper.gather_harvest(Collector.SpanEvent.Harvester)
 
         tx_span = TestHelper.find_span(span_events, "/Phoenix/PhxExampleWeb.HomeLive/index")
         process_span = TestHelper.find_span(span_events, "Transaction Root Process")
+        mount_span = TestHelper.find_span(span_events, "PhxExampleWeb.HomeLive:index.mount")
+
+        assert process_span[:parentId] == tx_span[:guid]
+        assert mount_span[:"live_view.params"]
+      end
+
+      @endpoint PhxExampleWeb.Endpoint
+      test "Live View transaction and spans generated" do
+        import Phoenix.ConnTest
+        import Phoenix.LiveViewTest
+
+        conn =
+          Phoenix.ConnTest.build_conn()
+          |> Plug.Test.init_test_session([])
+
+        conn = get(conn, "/phx/home")
+        assert html_response(conn, 200) =~ "<p>Some content</p>"
+
+        {:ok, _view, _html} = live(conn)
+
+        span_events = TestHelper.gather_harvest(Collector.SpanEvent.Harvester)
+
+        tx_span =
+          TestHelper.find_span(span_events, "/Phoenix.LiveView/Live/PhxExampleWeb.HomeLive/index")
+
+        process_span = TestHelper.find_span(span_events, "Transaction Root Process")
+        mount_span = TestHelper.find_span(span_events, "PhxExampleWeb.HomeLive:index.mount")
+        render_span = TestHelper.find_span(span_events, "PhxExampleWeb.HomeLive:index.render")
+
+        assert tx_span[:"live_view.endpoint"] == "PhxExampleWeb.Endpoint"
 
         assert process_span[:parentId] == tx_span[:guid]
+        assert mount_span[:parentId] == process_span[:guid]
+        assert render_span[:parentId] == process_span[:guid]
       end
 
       @tag :capture_log
       test "Phoenix error" do
-        TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
-
         {:ok, %{body: body, status_code: 500}} = request("/phx/error", unquote(server))
 
         assert body =~ "Oops, Internal Server Error"
@@ -111,9 +142,6 @@ defmodule PhxExampleTest do
 
       @tag :capture_log
       test "Phoenix LiveView error" do
-        TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
-
         {:ok, %{body: body, status_code: 500}} = request("/phx/live_error", unquote(server))
 
         assert body =~ "Oops, Internal Server Error"
@@ -136,10 +164,6 @@ defmodule PhxExampleTest do
       end
 
       test "Phoenix route not found" do
-        TestHelper.restart_harvest_cycle(Collector.Metric.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.TransactionEvent.HarvestCycle)
-        TestHelper.restart_harvest_cycle(Collector.ErrorTrace.HarvestCycle)
-
         {:ok, %{body: body, status_code: 404}} = request("/not_found", unquote(server))
         assert body =~ "Not Found"
 

examples/config/config.exs

@@ -12,4 +12,7 @@ for config <- "../apps/*/config/config.exs" |> Path.expand(__DIR__) |> Path.wild
   import_config config
 end
 
-if File.exists?("config/secret.exs"), do: import_config("secret.exs")
+if Mix.env() != :test do
+  if File.exists?(Path.expand("./secret.exs", __DIR__)),
+    do: import_config("secret.exs")
+end

examples/mix.lock

@@ -15,6 +15,7 @@
   "ecto_sqlite3": {:hex, :ecto_sqlite3, "0.14.0", "8710aa6de137a9c428fc86306b574777e9d545534b0259030a325948d43fc740", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ecto, "~> 3.11", [hex: :ecto, repo: "hexpm", optional: false]}, {:ecto_sql, "~> 3.11", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:exqlite, "~> 0.9", [hex: :exqlite, repo: "hexpm", optional: false]}], "hexpm", "4f69e5df5bdf8b98d80797b1a88b1d24b13ad9f187a553241c2aa6cb7447a672"},
   "elixir_make": {:hex, :elixir_make, "0.7.7", "7128c60c2476019ed978210c245badf08b03dbec4f24d05790ef791da11aa17c", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}], "hexpm", "5bc19fff950fad52bbe5f211b12db9ec82c6b34a9647da0c2224b8b8464c7e6c"},
   "exqlite": {:hex, :exqlite, "0.17.0", "865ab503debde7913ffa02b58838ab92885165978f4c88d8169ee8688c655d1e", [:make, :mix], [{:cc_precompiler, "~> 0.1", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "719fa7986fed242839629a907d60f774000c1d2dc03ba6ba05fcd30579f2ab45"},
+  "floki": {:hex, :floki, "0.37.0", "b83e0280bbc6372f2a403b2848013650b16640cd2470aea6701f0632223d719e", [:mix], [], "hexpm", "516a0c15a69f78c47dc8e0b9b3724b29608aa6619379f91b1ffa47109b5d0dd3"},
   "hackney": {:hex, :hackney, "1.17.0", "717ea195fd2f898d9fe9f1ce0afcc2621a41ecfe137fae57e7fe6e9484b9aa99", [:rebar3], [{:certifi, "~>2.5", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "64c22225f1ea8855f584720c0e5b3cd14095703af1c9fbc845ba042811dc671c"},
   "hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
   "httpoison": {:hex, :httpoison, "1.8.0", "6b85dea15820b7804ef607ff78406ab449dd78bed923a49c7160e1886e987a3d", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "28089eaa98cf90c66265b6b5ad87c59a3729bea2e74e9d08f9b51eb9729b3c3a"},

lib/new_relic/aggregate/aggregate.ex

@@ -19,7 +19,7 @@ defmodule NewRelic.Aggregate do
 
   defp averages(%{call_count: call_count} = values) do
     values
-    |> Stream.reject(fn {key, _value} -> key == :call_count end)
+    |> Enum.reject(fn {key, _value} -> key == :call_count end)
     |> Map.new(fn {key, value} -> {:"avg_#{key}", value / call_count} end)
   end
 

lib/new_relic/config.ex

@@ -156,6 +156,7 @@ defmodule NewRelic.Config do
 
   * `:plug_instrumentation_enabled`
   * `:phoenix_instrumentation_enabled`
+  * `:phoenix_live_view_instrumentation_enabled`
   * `:ecto_instrumentation_enabled`
   * `:redix_instrumentation_enabled`
   * `:oban_instrumentation_enabled`
@@ -184,6 +185,10 @@ defmodule NewRelic.Config do
     get(:features, :phoenix_instrumentation)
   end
 
+  def feature?(:phoenix_live_view_instrumentation) do
+    get(:features, :phoenix_live_view_instrumentation)
+  end
+
   def feature?(:ecto_instrumentation) do
     get(:features, :ecto_instrumentation)
   end

lib/new_relic/init.ex

@@ -108,6 +108,11 @@ defmodule NewRelic.Init do
           "NEW_RELIC_PHOENIX_INSTRUMENTATION_ENABLED",
           :phoenix_instrumentation_enabled
         ),
+      phoenix_live_view_instrumentation:
+        determine_feature(
+          "NEW_RELIC_PHOENIX_LIVE_VIEW_INSTRUMENTATION_ENABLED",
+          :phoenix_live_view_instrumentation_enabled
+        ),
       oban_instrumentation:
         determine_feature(
           "NEW_RELIC_OBAN_INSTRUMENTATION_ENABLED",

lib/new_relic/metric/metric_data.ex

@@ -358,6 +358,16 @@ defmodule NewRelic.Metric.MetricData do
       max_call_time: duration_s
     }
 
+  def transform({:function, function_name}, duration_s: duration_s),
+    do: %Metric{
+      name: join(["Function", function_name]),
+      call_count: 1,
+      total_call_time: duration_s,
+      total_exclusive_time: duration_s,
+      min_call_time: duration_s,
+      max_call_time: duration_s
+    }
+
   def transform({:function, function_name},
         duration_s: duration_s,
         exclusive_time_s: exclusive_time_s

lib/new_relic/telemetry/absinthe.ex

@@ -64,8 +64,8 @@ defmodule NewRelic.Telemetry.Absinthe do
 
     NewRelic.Tracer.Direct.start_span(
       meta.id,
-      "Operation",
-      start_time: meas.system_time,
+      "Absinthe/Operation",
+      system_time: meas.system_time,
       attributes: [
         "absinthe.schema": inspect(meta.options[:schema]),
         "absinthe.query": query
@@ -116,7 +116,7 @@ defmodule NewRelic.Telemetry.Absinthe do
     NewRelic.Tracer.Direct.start_span(
       meta.id,
       {resolver_name, "#{inspect(resolution.schema)}.#{path}"},
-      start_time: meas.system_time,
+      system_time: meas.system_time,
       attributes: [
         "absinthe.field.path": path,
         "absinthe.field.type": type,
@@ -160,11 +160,11 @@ defmodule NewRelic.Telemetry.Absinthe do
   end
 
   defp operation_span_name(%{type: type, name: name}) when is_binary(name) do
-    "#{to_string(type)}:#{name}"
+    "Absinthe/Operation/#{to_string(type)}:#{name}"
   end
 
   defp operation_span_name(%{type: type}) do
-    "#{to_string(type)}"
+    "Absinthe/Operation/#{to_string(type)}"
   end
 
   defp transaction_name(schema, operation) do