After Installing the Connector you can connect and create a Data Source for data in Square.

Setting Up a Data Source

Complete the following steps to connect to the data:

1. Under Connect | To a Server, click More....
2. Select the data source called Square by CData.
3. Enter the information required for the connection.
4. Click Sign In.
5. If necessary, select a Database and Schema to discover what tables and views are available.

Using the Connection Builder

The connector makes the most common connection properties available directly in Tableau. However, it can be difficult to use if you need to use more advanced settings or need to troubleshoot connection issues. The connector includes a separate connection builder that allows you to create and test connections outside of Tableau.

There are two ways to access the connection builder:

• On Windows, use a shortcut called Connection Builder in the Start menu, under the CData Tableau Connector for Square folder.
• You can also start the connection builder by going to the driver install directory and running the .jar file in the lib directory.

In the connection builder, you can set values for connection properties and click Test Connection to validate that they work. You can also use the Copy to Clipboard button to save the connection string. This connection string can be given to the Connection String option included in the connector connection window in Tableau.

Connecting to Square

Square provides two different ways to connect:

• Via personal acess token -- to connect to your own data or test data through the sandbox.
• Via OAuth -- to connect to shared Square data over a browser.

Both of the above methods make use of OAuth functionality that is embedded in the CData Square driver.

Before You Connect

• Set the OAuthAccessToken connection property as described below, for the way you want to access data.
• Set the LocationId property to specify a default business location.

Personal Access Token

To connect to personal data, obtain your personal access token, then set the OAuthAccessToken connection property to that token:

1. Navigate to the Square Developer Dashboard at "https://developer.squareup.com/apps".
2. After the app is created, open the Credentials tab to find the personal token.

Square Sandbox

Version 2 of the Connect API permits you to test in a sandbox environment. Transactions created in the sandbox are not sent through to card networks, and cards are never charged.

To connect to the sandbox, obtain the sandbox access token, then set the OAuthAccessToken connection property to that token:

1. Navigate to the Square Developer Dashboard at "https://developer.squareup.com/apps".
2. After the app is created, open the Credentials tab to find the sandbox token.

OAuth

service; supports OAuth authentication only. To enable this authentication from all OAuth flows, you must set AuthScheme to OAuth.

The following subsections describe how to authenticate to Square from three common authentication flows:

• Desktop: a connection to a server on the user's local machine, frequently used for testing and prototyping. Authenticated via either embedded OAuth or custom OAuth.
• Web: access to data via a shared website. Authenticated via custom OAuth only.
• Headless Server: a dedicated computer that provides services to other computers and their users, which is configured to operate without a monitor and keyboard. Authenticated via embedded OAuth or custom OAuth.

For information about how to create a custom OAuth application, and why you might want to create one even for auth flows that have embedded OAuth credentials, see Creating a Custom OAuth Application.

For a complete list of connection string properties available in Square, see Connection.

Desktop Applications

CData provides an embedded OAuth application that simplifies authentication at the desktop. You can also authenticate from the desktop via a custom OAuth application, which you configure and register at the Square console. For further information, see Creating a Custom OAuth Application.

Before you connect, set the following variables:

• InitiateOAuth = GETANDREFRESH. Used to automatically get and refresh the OAuthAccessToken.
• Custom OAuth applications only:
  • OAuthClientId = the client Id assigned when you registered your custom OAuth application.
  • OAuthClientSecret = the client secret assigned when you registered your custom OAuth application.
  • CallbackURL = the redirect URI defined when you registered your custom OAuth application.

When you connect, the connector opens Square's OAuth endpoint in your default browser. Log in and grant permissions to the application.

After you grant permissions to the application, the connector completes the OAuth process:

1. The connector obtains an access token from Square and uses it to request data.
2. The OAuth values are saved in the path specified in OAuthSettingsLocation. These values persist across connections.

When the access token expires, the connector refreshes it automatically.

Automatic refresh of the OAuth access token:

To have the connector automatically refresh the OAuth access token, do the following:

1. The first time you connect to data, set the following connection parameters:
   • InitiateOAuth = REFRESH.
   • OAuthClientId = the client Id in your application settings.
   • OAuthClientSecret = the client secret in your application settings.
   • OAuthAccessToken = the access token returned by GetOAuthAccessToken.
   • OAuthSettingsLocation = the path where you want the connector to save the OAuth values, which persist across connections.
2. On subsequent data connections, set the following:
   • InitiateOAuth
   • OAuthSettingsLocation

Manual refresh of the OAuth Access Token:

The only value needed to manually refresh the OAUth access token is the OAuth refresh token.

1. To manually refresh the OAuthAccessToken after the ExpiresIn period (returned by GetOAuthAccessToken) has elapsed, call the GetOAuthAccessToken stored procedure.
2. Set the following connection properties:
   • OAuthClientId = the Client Id in your application settings.
   • OAuthClientSecret = the Client Secret in your application settings.

3. Call RefreshOAuthAccessToken with OAuthRefreshToken set to the OAuth refresh token returned by GetOAuthAccessToken.
4. After the new tokens have been retrieved, set the OAuthAccessToken property to the value returned by RefreshOAuthAccessToken. This opens a new connection.

Store the OAuth refresh token so that you can use it to manually refresh the OAuth access token after it has expired.

Post-Authentication Options

After you authenticate to Square, you can retrieve the Locations table, then set the LocationId to confine your search criteria to a chosen location.

Next Step

See Using the Connector to create data visualizations.