NAME

Plack::Middleware::Prometheus::RequestTimes - record response times with a prometheus histogram.

VERSION

version 0.0001

DESCRIPTION

To setup a prometheus metrics app in your PSGI application register hook this middleware up with a histogram and the metrics can report on your response times.

            

              
              
use strict;
use warnings;
use My::Website;
use Net::Prometheus;
use Net::Prometheus::ProcessCollector;
my $client = Net::Prometheus->new;
$client->register( Net::Prometheus::ProcessCollector->new(
   prefix => "parent_process",
   pid => getppid(),
) );
my $response_times = $client->new_histogram(
        name => "response_times",
        help => "Application response times",
);
use Plack::Builder;
my $app = My::Website->apply_default_middlewares(My::Website->psgi_app);
builder {
        mount "/metrics" => $client->psgi_app;
        mount '/' => builder {
                enable 'Prometheus::RequestTimes', observer => $response_times;
                $app;
        };
};
            
          

CONFIGURATION

observer

Normally a Net::Prometheus::Histogram object for recording the observations.

AUTHOR

Colin Newell <colin@opusvl.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2016 by OpusVL.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.