Integrating into Phoenix

Incoming HTTP requests

To start logging HTTP requests in your Phoenix app, use the Appsignal.Phoenix module in your endpoint.ex file, just before the line where your router module gets called (which should read something like plug PhoenixApp.Router):

use Appsignal.Phoenix

Phoenix instrumenter hooks

Phoenix comes with instrumentation hooks built in. To send Phoenix’ default instrumentation events to Appsignal, add the following to your config.exs (adjusting for your app’s name!):

config :phoenix_app, PhoenixApp.Endpoint,
  instrumenters: [Appsignal.Phoenix.Instrumenter]

For more custom configuration, see the Appsignal.Phoenix.Instrumenter documentation.

Template renders

To instrument how much time it takes to render each template in your Phoenix application, including subtemplates (partials), you need to register the Appsignal template renderers which augment the compiled templates with instrumentation hooks.

Put the following in your config.exs:

config :phoenix, :template_engines,
  eex: Appsignal.Phoenix.Template.EExEngine,
  exs: Appsignal.Phoenix.Template.ExsEngine

Channels

Currently, channels do not have hooks for instrumentation yet.