Plugsnag

Report errors in your Plug stack or whatever to Bugsnag, because that's a super great place to send your errors.

Installation/Usage

Just throw it in your deps in your mix.exs:

  defp deps do
    [{:plugsnag, "~> 1.4.0"}]
  end

Then you'll need to configure it with your API key as per the bugsnag-elixir docs.

If you're using Elixir < 1.4 make sure that plugsnag and bugsnag apps are started in your mix.exs. If you are using Elixir 1.4, the applications will be automatically started because they are dependencies.

For example:

def application do
    [mod: {MyApp, []},
     applications: [:logger, :plugsnag, :bugsnag]
    ]
  end

To use the plug, use it in your router. For example in an Phoenix app:

defmodule YourApp.Router do
  use Phoenix.Router
  use Plugsnag

  # ...
end

Filtering Parameters and Headers

By default, the BasicErrorReportBuilder will filter out password parameters from error reports sent to Bugsnag. You can customize this list inside your configuration:

config :plugsnag, filter: [params: ~w(password password_confirmation super_sekrit), headers: []]

Customizing error reporting

You can also customize how an error is sent to bugsnag-elixir by passing your own custom ErrorReportBuilder with the :error_report_builder option.

defmodule YourApp.Router do
  use Phoenix.Router
  use Plugsnag, error_report_builder: YourApp.ErrorReportBuilder

  # ...
end

defmodule YourApp.ErrorReportBuilder do
  @behaviour Plugsnag.ErrorReportBuilder

  def build_error_report(error_report, conn) do
    error_report
    |> Plugsnag.BasicErrorReportBuilder.build_error_report(conn)
    |> put_user_info(conn)
  end

  defp put_user_info(error_report, conn) do
    current_user = conn.assigns[:current_user]

    user_info =  %{
      id: current_user.id
    }

    %{error_report | user: user_info}
  end
end