NAME

    Mojo::Log::JSON - Simple JSON logger

SYNOPSIS

        use Mojo::Log::JSON;
    
        # Log to STDERR
        my $logger = Mojo::Log::JSON->new;
    
        # Customize log file location, minimum log level and default fields
        my $logger = Mojo::Log::JSON->new(    #
            path           => '/var/log/mojo.log',
            level          => 'warn',
            default_fields => {                      # default fields added to log
                app_name => "MyApp",                 # either scalar
                random_thing => sub { rand() },      # or codref,
            },
            include_level => 1,    # default - include 'level' key in output
        );
    
        # To add an extra default field
        $logger->default_fields->{foo} = "bar";
    
        # Log messages - debug, info, warn, error, fatal (same as Mojo::Log)
        $logger->debug( "A simple string" );
        $logger->debug( "A", "message", "over", "multiple", "lines" );
        $logger->debug( { message => "A data structure", abc => "123" } );
    
        # The above examples would generate something like the following:
        {"datetime":"2014-03-13 13:15:44","foo":"bar","level":"debug","message":"A simple string"}
        {"datetime":"2014-03-13 13:15:45","foo":"bar","level":"debug","message":"A\nmessage\nover\nmultiple\nlines"}
        {"datetime":"2014-03-13 13:15:46","abc":"123","foo":"bar","level":"debug","message":"A data structure"}
    
        # To not include 'level' set an undefined default_fields key either in the
        # constructure or as follows:
        $logger->default_fields->{level} = undef;

DESCRIPTION

    Mojo::Log::JSON is a simple JSON logger for Mojo projects. It logs a
    JSON object (hashref) per log message. Each object occupies a single
    line to allow easy parsing of the log output.

    The key level is always added to the data structure, with the value set
    to the level of the log message being emitted. To omit this, set
    include_level to a false value.

    By default the key datetime is also added to the data structure with a
    value of the current time in ISO 8601 format. This can be removed or
    other fields can be added via the default_fields attribute.

ATTRIBUTES

    All of the attributes of Mojo::Log are present, plus the following
    additional attributes.

 codec

    Pass in a JSON object to override the default JSON formatting settings.

 default_fields

    Hashref of key/value pairs to add to the data structure. Can be
    overwritten by values in the log message

METHODS

    Mojo::Log::JSON inherits all methods from Mojo::Log.

SEE ALSO

    Mojo::Log

SUPPORT

 Bugs / Feature Requests

    Please report any bugs or feature requests through the issue tracker at
    https://github.com/mjemmeson/mojo-log-json/issues. You will be notified
    automatically of any progress on your issue.

 Source Code

    This is open source software. The code repository is available for
    public review and contribution under the terms of the license.

    https://github.com/mjemmeson/mojo-log-json

        git clone git://github.com/mjemmeson/mojo-log-json.git

AUTHOR

    Michael Jemmeson <mjemmeson@cpan.org>

CONTRIBUTORS

      * Tom Hukins (CPAN: TOMHUKINS)

COPYRIGHT

    Copyright 2014- Michael Jemmeson

LICENSE

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

