AppSignal's Plug instrumentation instruments calls to Plug applications to gain performance insights and error reporting.

To install Appsignal.Plug into your Plug application, first add :appsignal_plug to your project's dependencies:

defp deps do {:appsignal_plug, "~> 2.0"} end

After that, follow the installation instructions for Appsignal for Elixir.

Finally, use Appsignal.Plug in your application's router module:

defmodule AppsignalPlugExample do use Plug.Router use Appsignal.Plug plug(:match) plug(:dispatch) get "/" do send_resp(conn, 200, "Welcome") end end

For more information, check out the Integrating AppSignal into Plug guide.