scout_apm monitors the performance of Elixir applications in production and provides an in-browser profiler during development. Metrics are reported to Scout, a hosted application monitoring service.

1. Signup for a free Scout account.
2. Follow our install instructions within the UI.

See our docs for detailed information.

DevTrace, Scout's in-browser development profiler, may be used without signup.

To use:

1. Follow the same installation steps as monitoring, but skip downloading the config file.
2. In your config/dev.exs file, add:

# config/dev.exs
config :scout_apm,
  dev_trace: true

3. Restart your app.
4. Refresh your browser window and look for the speed badge.

See our docs for information on libraries we auto-instrument (like Phoenix controller-actions) and guides for instrumenting Phoenix channels, Task, HTTPoison, GenServer, and more.