Plug.Telemetry.ServerTiming

This library provides support for Server-Timing header in Plug applications by exposing Telemetry events as metrics in HTTP headers. This allows developers to use their's browser DevTools to display server metrics in readable way.

Installation

The package can be installed by adding plug_server_timing to your list of dependencies in mix.exs:

def deps do
  [
    {:plug_telemetry_server_timing, "~> 0.1.0"}
  ]
end

Then add Plug.ServerTiming to your pipeline BEFORE any Plug.Telemetry definitions:

plug Plug.Telemetry.ServerTiming
plug Plug.Telemetry, event_prefix: [:my, :plug]

And then you need to install metrics you will want to see in the DevTools:

Plug.Telemetry.ServerTiming.install([
  {[:my, :plug, :stop], :duration}
])

Now when you will open given page in browsers with support for Server-Timing you will be able to see the data in DevTools, example in Google Chrome:

License

MIT License