Quickbooks

IN PROGRESS(Not for production yet)

Integration with Quickbooks Online via the Intuit Data Services v3 REST API

This library communicates with the Quickbooks Data Services v3 API, documented at:

Data Services v3

Installation

1. Add quickbooks to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:quickbooks, "~> 0.1.0"}]
end
```

2. Ensure quickbooks is started before your application:

```elixir
def application do
  [applications: [:quickbooks]]
end
```

Getting Started & Initiating Authentication Flow with Intuit

What follows is an example using Phoenix but the principles can be adapted to any other framework / pure Elixir.

Adds in your env.esx

# Configure quickbooks
config :quickbooks,
  oauth_consumer_key: "qyprdzfo4URox8GsQiOi0CfTLZaibs",
  oauth_consumer_secret: "5ayBG2IVwozKVdzwW4dDLRFAu8cUoOQqQRjM2fAX",
  oauth_callback_url: "http://localhost:4000/oauth/quickbooks/callback",
  sandbox_mode: true,
  log: true

To start the authentication flow with Intuit you include the Intuit Javascript and on a page of your choosing you present the "Connect to Quickbooks" button by including this XHTML:

<!-- somewhere in your document include the Javascript -->
<script type="text/javascript" src="https://appcenter.intuit.com/Content/IA/intuit.ipp.anywhere.js"></script>

<!-- configure the Intuit object: 'grantUrl' is a URL in your application which kicks off the flow, see below -->
<script>
intuit.ipp.anywhere.setup({menuProxy: '/path/to/blue-dot', grantUrl: '/path/to/your-flow-start'});
</script>

<!-- this will display a button that the user clicks to start the flow -->
<ipp:connectToIntuit></ipp:connectToIntuit>

Your Controller action (the grantUrl above) should look like this:

  def authenticate(conn, _params) do
    {:ok, response, redirect_url} = Quickbooks.OAuthQBO.get_request_token

    conn
      |> put_session(:token, response["oauth_token"])
      |> put_session(:secret, response["oauth_token_secret"])
      |> redirect external: redirect_url
  end

The callback_url is set on config section, is the absolute URL of your application that Intuit should send the user when authentication succeeds. That action should look like:

def oauth_callback(conn, params) do  
  # Persist token, token_secret and realm_id
end

Example to retrieve Customers:

alias Quickbooks.AccountingAPI.{CustomerQBO}   


def index(conn, _params) do
  # This credentials we can store in a JSONB column on companies column
  credentials = %{token: user_info.token, token_secret: user_info.secret, realm_id: user_info.realm_id}
  case CustomerQBO.query(credentials) do
    {:ok, response} ->
      {startPosition: start_position, maxResults: max_results, Customer: customers} = response

      ...
    {:error, error} ->
      IO.inspect error
  end
end

README based from: quickbooks-ruby (Thanks!)