Log::UDP::Client - A simple way to send structured log messages via UDP


version 0.20.2


    use Log::UDP::Client;

    # Send the simple scalar to the server

    # Log lots of messages
    my $logger = Log::UDP::Client->new(server_port => 15000);
    my $counter=0;
    while(++$counter) {
        last if $counter >= 1000;

    # Send some debugging info
        pid     => $$,
        program => $0,
        args    => \@ARGV,

    # Use of JSON serializer
    my $logger = Log::UDP::Client->new( serializer_module => 'JSON' );

    # Will emit { "message" => "Hi" } because JSON want to wrap stuff into a hashref

    # Use of custom serializer
    use Storable qw(freeze);
    my $logger = Log::UDP::Client->new (
        serializer => sub {
            return nfreeze( \( $_[0] ) );


This module enables you to send a message (simple string or complicated object) over an UDP socket to a listening server. The message will be encoded with a serializer module (default is Storable).


server_address : Str

IP address or hostname for the server you want to send the messages to. This field can be changed after instantiation. Default is

server_port : Int

Port for the server you plan to send the messages to. This field can be changed after instantiation. Default is port 9999.

throws_exception : Bool

If errors are encountered, should we throw exception or just return? Default is return. Set to true for exceptions. You can change this flag after instantiation.

socket : IO::Socket::INET

Read-only field that contains the socket used to send the messages.



Instance method that actually encodes and transmits the specified message over UDP to the listening server. Will die if throw_exception is set to true and some kind of transmission error occurs. The message will be serialized by the instance-defined serializer. Returns true on success.


  • deserialize

  • deserializer

  • serialize

  • serializer

  • serializer_module

All of these methods are inherited from Data::Serializable. Read more about them there.




You can find documentation for this module with the perldoc command.

  perldoc Log::UDP::Client


The following websites have more information about this module, and may be of help to you. As always, in addition to those websites please use your favorite search engine to discover more resources.

Bugs / Feature Requests

Please report any bugs or feature requests by email to bug-log-udp-client at, or through the web interface at You will be automatically notified of any progress on the request by the system.

Source Code

The code is open to the world, and available for you to hack on. Please feel free to browse it and play with it, or whatever. If you want to contribute patches, please send me a diff or prod me to pull from your repository :)

  git clone git://


Robin Smidsrød <>


This software is copyright (c) 2017 by Robin Smidsrød.

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