/ 
AWS-XRay-0.02
River stage one • 2 direct dependents • 2 total dependents
/ AWS::XRay

NAME

AWS::XRay - AWS X-Ray tracing library

SYNOPSIS

use AWS::XRay qw/ capture /;

capture "myApp", sub {
    capture "remote", sub {
        # do something ...
        capture "nested", sub {
            # ...
        };
    };
    capture "myHTTP", sub {
        my $segment = shift;
        # ...
        $segment->{http} = { # modify segument document
            request => {
                method => "GET",
                url    => "http://localhost/",
            },
            response => {
                status => 200,
            },
        };
    };
};

my $header;
capture "source", sub {
    my $segment = shift;
    $header = $segment->trace_header;
};
capture_from $header, "dest", sub {
    my $segment = shift;  # is a child of "source" segment
    # ...
};

DESCRIPTION

AWS::XRay is a tracing library with AWS X-Ray.

AWS::XRay sends segment data to AWS X-Ray Daemon.

FUNCTIONS

new_trace_id

Generate a Trace ID. (e.g. "1-581cf771-a006649127e371903a2de979")

Document

capture($name, $code)

capture() executes $code->($segment) and send the segment document to X-Ray daemon.

$segment is a AWS::XRay::Segment object.

When $AWS::XRay::TRACE_ID is not set, generates TRACE_ID automatically.

When capture() called from other capture(), $segment is a sub segment document.

See also AWS X-Ray Segment Documents.

capture_from($header, $name, $code)

capture_from() parses the trace header and capture the $code with sub segment of header's segment.

parse_trace_header($header)

my ($trace_id, $segment_id) = parse_trace_header($header);

Parse a trace header (e.g. "Root=1-5759e988-bd862e3fe1be46a994272793;Parent=53995c3f42cd8ad8").

CONFIGURATION

$AWS::XRay::Enabled

Default true. When set false, capture() executes sub but do not send segument documents to X-Ray daemon.

AWS_XRAY_DAEMON_ADDRESS environment variable

Set the host and port of the X-Ray daemon. Default 127.0.0.1:2000

LICENSE

Copyright (C) FUJIWARA Shunichiro.

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

AUTHOR

FUJIWARA Shunichiro <fujiwara.shunichiro@gmail.com>