Author image Gianni Ceccarelli
and 1 contributors

NAME

Log::Log4perl::Layout::JSON::Readable - JSON layout, but some fields always come first

VERSION

version 1.0.3

SYNOPSIS

Example configuration:

    log4perl.appender.Example.layout = Log::Log4perl::Layout::JSON::Readable
    log4perl.appender.Example.layout.field.message = %m{chomp}
    log4perl.appender.Example.layout.field.category = %c
    log4perl.appender.Example.layout.field.time = %d
    log4perl.appender.Example.layout.field.pid = %P
    log4perl.appender.Example.layout.field.level = %p
    log4perl.appender.Example.layout.canonical = 1
    log4perl.appender.Example.layout.first_fields = time, pid, level

DESCRIPTION

This layout works just like Log::Log4perl::Layout::JSON, but it always prints some fields first, even with canonical => 1.

The fields to print first are set via the first_fields attribute, which is a comma-separated list of field names (defaults to time, pid, level, like in the synopsis).

So, instead of:

    {"category":"App.Minion.stats","level":"TRACE","message":"Getting metrics","pid":"6689","time":"2018-04-04 13:57:23,990"}

you get:

    {"time":"2018-04-04 13:57:23,990","pid":"6689","level":"TRACE","category":"App.Minion.stats","message":"Getting metrics"}

which is more readable (e.g. for the timestamp) and usable (e.g. for the pid).

AUTHORS

  • Johan Lindstrom <Johan.Lindstrom@broadbean.com>

  • Gianni Ceccarelli <gianni.ceccarelli@broadbean.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021 by BroadBean UK, a CareerBuilder Company.

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