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A Rails interface for Intuit's Quickbooks Web Connector

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ATTENTION

I recommend using the qbxml branch. It has Rails 4 updates and uses a much faster QBXML parser.

Quickbooks Web Connector (QBWC)

Be Warned, this code is still hot out of the oven.

Installation

Install the gem

gem install qbwc

Add it to your Gemfile

gem "qbwc"

Run the generator:

rails generate qbwc:install

Features

QBWC was designed to add quickbooks web connector integration to your Rails 3 application.

  • Implementation of the Soap WDSL spec for Intuit Quickbooks and Point of Sale
  • Integration with the quickbooks_api gem providing qbxml processing

Getting Started

Configuration

All configuration takes place in the gem initializer. See the initializer for more details regarding the configuration options.

Basics

The QBWC gem provides a persistent work queue for the Web Connector to talk to.

Every time the Web Connector initiates a new conversation with the application a Session will be created. The Session is a collection of jobs and the requests that comprise these jobs. A new Session will automatically queue up all the work available across all currently enabled jobs for processing by the web connector. The session instance will persist across all requests until the work it contains has been exhausted. You never have to interact with the Session class directly (unless you want to...) since creating a new job will automatically add it's work to the next session instance.

A Job is just a named work queue. It consists of a name and a code block. The block can contain:

  • A single qbxml request
  • An array of qbxml requests
  • Code that genrates a qbxml request
  • Code that generates an array of qbxml requests

Note: All requests may be in ruby hash form, generated using quickbooks_api. Raw requests are supported supported as of 0.0.3 (8/28/2012)

The code block is re-evaluated every time a session instance with that job is created. Only enabled jobs are added to a new session instance.

An optional response processor block can also be added to a job. Responses to all requests are either processed immediately after being received or saved for processing after the web connector closes its connection. The delayed processing configuration option decides this.

Here is the rough order in which things happen:

  1. The Web Connector initiates a connection
  2. A new Session is created (with work from all enabled jobs)
  3. The web connector requests work
  4. The session responds with the next request in the work queue
  5. The web connector provides a response
  6. The session responds with the current progress of the work queue (0 - 100)
  7. The response is processed or saved for later processing
  8. If progress == 100 then the web connector closes the connection, otherwise goto 3
  9. Saved responses are processed if any exist

Adding Jobs

Create a new job

QBWC.add_job('my job') do
  # work to do
end

Add a response proc

QBWC.jobs['my job'].set_response_proc do |r|
  # response processing work here
end

Caveats

  • Jobs are enabled by default
  • Using a non unique job name will overwrite the existing job

###Sample Jobs

Add a Customer (Wrapped)

      {  :qbxml_msgs_rq =>
        [
          {
            :xml_attributes =>  { "onError" => "stopOnError"},
            :customer_add_rq =>
            [
              {
                :xml_attributes => {"requestID" => "1"},  ##Optional
                :customer_add   => { :name => "GermanGR" }
              }
            ]
          }
        ]
      }

Add a Customer (Unwrapped)

    {
      :customer_add_rq    =>
      [
        {
          :xml_attributes => {"requestID" => "1"},  ##Optional
          :customer_add   => { :name => "GermanGR" }
        }
      ]
    }

Get All Vendors (In Chunks of 5)

    QBWC.add_job(:import_vendors) do
      [
        :vendor_query_rq  =>
        {
          :xml_attributes => { "requestID" =>"1", 'iterator'  => "Start" },

          :max_returned => 5,
          :owner_id => 0,
          :from_modified_date=> "1984-01-29T22:03:19"

        }
      ]
    end

Get All Vendors (Raw QBXML)

    QBWC.add_job(:import_vendors) do
      '<QBXML>
        <QBXMLMsgsRq onError="continueOnError">
        <VendorQueryRq requestID="6" iterator="Start">
        <MaxReturned>5</MaxReturned>
        <FromModifiedDate>1984-01-29T22:03:19-05:00</FromModifiedDate>
        <OwnerID>0</OwnerID>
      </VendorQueryRq>
      </QBXMLMsgsRq>
      </QBXML>
      '
    end

Managing Jobs

Jobs can be added, removed, enabled, and disabled. See the above section for details on adding new jobs.

Removing jobs is as easy as deleting them from the jobs hash.

QBWC.jobs.delete('my job')

Disabling a job

QBWC.jobs['my job'].disable

Enabling a job

QBWC.jobs['my job'].enable

Contributing to qbwc

  • Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
  • Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
  • Fork the project
  • Start a feature/bugfix branch
  • Commit and push until you are happy with your contribution
  • Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
  • Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

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