[![Build Status](https://travis-ci.org/akiym/Plack-Middleware-ServerTiming.svg?branch=master)](https://travis-ci.org/akiym/Plack-Middleware-ServerTiming) # NAME Plack::Middleware::ServerTiming - Performance metrics in Server-Timing header # SYNOPSIS use Plack::Builder; builder { enable 'ServerTiming'; sub { my $env = shift; sleep 1; push @{$env->{'psgix.server-timing'}}, ['miss']; push @{$env->{'psgix.server-timing'}}, ['sleep', {dur => 1000, desc => 'Sleep one second...'}]; [200, ['Content-Type','text/html'], ["OK"]]; }; }; # DESCRIPTION Plack::Middleware::ServerTiming is middleware to add `Server-Timing` header on your response. You may set `psgix.server-timing` environment value to specify name, duration and description as metrics. # ENVIRONMENT VALUE - psgix.server-timing $env->{'psgix.server-timing'} = [ [$name], [$name, {dur => $duration}], [$name, {desc => $description}], [$name, {dur => $duration, desc => $description}], ]; # SEE ALSO [https://www.w3.org/TR/server-timing/](https://www.w3.org/TR/server-timing/) # LICENSE Copyright (C) Takumi Akiyama. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. # AUTHOR Takumi Akiyama