Net::FreshBooks::API - Easy OO access to the API


version 0.24


    use Net::FreshBooks::API;

    # Authenticate with OAuth (recommended)
    my $fb = Net::FreshBooks::API->new(
        {   consumer_key        => $consumer_key,       # your account_name
            consumer_secret     => $consumer_secret,
            access_token        => $access_token,
            access_token_secret => $access_token_secret,
            account_name        => $account_name,       # user's account name

    # Or, use auth_token and account_name supplied by FreshBooks
    my $fb = Net::FreshBooks::API->new(
        {   auth_token   => $auth_token,
            account_name => $account_name,

    # create a new client
    my $client = $fb->client->create(
        {   first_name   => 'Larry',
            last_name    => 'Wall',
            organization => 'Perl HQ',
            email        => '',

    # we can now make changes to the client and save them
    $client->organization( 'Perl Foundation' );

    # or more quickly
    $client->update( { organization => 'Perl Foundation', } );

    # create an invoice for this client
    my $invoice = $fb->invoice(
        {   client_id => $client->client_id,
            number    => '00001',

    # add a line to the invoice
        {   name      => 'Hawaiian shirt consulting',
            unit_cost => 60,
            quantity  => 4,

    # save the invoice and then send it

    # create a recurring item

    use Net::FreshBooks::API;
    use Net::FreshBooks::API::InvoiceLine;
    use DateTime;

    # auth_token and account_name come from FreshBooks
    my $fb = Net::FreshBooks::API->new(
        {   auth_token   => $auth_token,
            account_name => $account_name,

    # find the first client returned
    my $client = $fb->client->list->next;

    # create a line item
    my $line = Net::FreshBooks::API::InvoiceLine->new(
        {   name         => "Widget",
            description  => "Net::FreshBooks::API Widget",
            unit_cost    => '1.99',
            quantity     => 1,
            tax1_name    => "GST",
            tax1_percent => 5,

    # create the recurring item
    my $recurring_item = $fb->recurring->create(
        {   client_id => $client->client_id,
            date      => DateTime->now->add( days => 2 )->ymd,    # YYYY-MM-DD
            frequency => 'monthly',
            lines     => [$line],
            notes     => 'Created by Net::FreshBooks::API',

    $recurring_item->po_number( 999 );

See also Net::FreshBooks::API::Base for other available methods, such as create, update, get, list and delete.

DESCRIPTION is a website that lets you create, send and manage invoices. This module is an OO abstraction of their API that lets you work with Clients, Invoices etc as if they were standard Perl objects.



OAuth is the recommended method of authentication, but it can take a few days for FreshBooks to approve your OAuth application. In the meantime, you can get started right away by using an auth_token.

Once your application has been approved, your consumer_key will be your FreshBooks account name and your consumer_key_secret will be provided to you by FreshBooks in your account. If you need to generate an access_token and access_token_secret, you can so so by running the script in the /examples directory which is included with this distribution.



Create a new API object using OAuth:

    my $fb = Net::FreshBooks::API->new(
        {   consumer_key        => $consumer_key,       # same as account_name
            consumer_secret     => $consumer_secret,
            access_token        => $access_token,
            access_token_secret => $access_token_secret,

Create a new API object the old (discouraged) way:

    # auth_token and account_name come from FreshBooks
    my $fb = Net::FreshBooks::API->new(
        {   auth_token   => $auth_token,
            account_name => $account_name,


Returns a Net::FreshBooks::API::Client object.


Creates and returns a new Net::FreshBooks::API::Estimate object.


Creates and returns a new Net::FreshBooks::API::Gateway object.


Creates and returns a new Net::FreshBooks::API::Invoice object.


Creates and returns a new Net::FreshBooks::API::Language object.


Creates and returns a new Net::FreshBooks::API::Payment object.


Creates and returns a new Net::FreshBooks::API::Recurring object.


  my $bool = $fb->ping(  );

Ping the server with a trivial request to see if a connection can be made. Returns true if the server is reachable and the authentication details are valid.


  my $url = $fb->service_url(  );

Returns a URI object that represents the service URL.


Setting verbose to a true value will allow you to inspect the XML which is being sent to FreshBooks


  my $ua = $fb->ua;

Return a LWP::UserAgent object to use when contacting the server.


    my $deletion_count
        = $fb->delete_everything_from_this_test_account();

Deletes all clients, invoices and payments from this account. This is convenient when testing but potentially very dangerous. To prevent accidential deletions this method has a very long name, and will croak if the account name does not end with 'test'.

As a general rule it is best to put this at the start of your test scripts rather than at the end. This will let you inspect your account at the end of the test script to see what is left behind.



The following OAuth methods are getter/setter methods, which can optionally also be passed to new(). Required or optional is used in the context of OAuth connections. If you are not connecting via OAuth then you can safely ignore these options.

account_name( $account_name )

Required. Account name is the account name of the user who wishes to connect to your app.

For example, if "acmeinc" is attempting to connect to your "widgets" app:

    # acme usually logs in via
    $fb->account_name( 'acmeinc' );

consumer_key( $consumer_key )

Required. The consumer key will be provided to you by FreshBooks, but it's generally just the name of your account.

    # account name is "mycompany"

    $fb->consumer_key( 'mycompany' );

(In the case where you are logging in to your own app, consumer_key and account_name will have the same value.)

consumer_secret( $secret )

Required. The consumer_secret is provided to you by FreshBooks. You'll need to log in to your account to access it.

access_token( $access_token )

Optional. If you do not have an access_token, you'll need to acquire one with your code and then set this parameter before you request restricted URLs.

access_token_secret( $access_token_secret )

Optional. If you do not have an access_token_secret, you'll need to acquire one with your code and then set this parameter before you request restricted URLs.


Returns true if $fb->account_name appears to be valid.



Returns a Net::FreshBooks::API::OAuth object. This is a subclass of Net::OAuth::Simple See Net::FreshBooks::API::OAuth as well as the scripts in the /examples folder of this distribution for use cases.


This code is still under development - any and all patches most welcome.

The documentation is by no means complete. Feel free to look at the test files for more examples of usage.

Up to this point, only clients, invoices and recurring items have been implemented, but other functionality may be added as needed. If you need other details, they should be very easy to add. Please get in touch.


Edmund von der Burg <> (Original Author)

Developed for HinuHinu

Recurring, Estimate and OAuth support by:

Olaf Alders

Developed for Raybec Communications


WWW::FreshBooks::API - an alternative interface to FreshBooks. the FreshBooks API documentation.


  • Edmund von der Burg <>

  • Olaf Alders <>


This software is copyright (c) 2011 by Edmund von der Burg & Olaf Alders.

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