Connect to Foursquare Data from PowerBuilder via ODBC

The CData ODBC Driver for Foursquare can be used from any platform or development technology that supports ODBC, including PowerBuilder. This article shows how to connect to Foursquare data and execute queries from the Database Painter and controls such as the DataWindow.

Connect to Foursquare as an ODBC Data Source

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

Using API Key Authentication

Foursquare Places API uses Service Key (Bearer token) authentication. To obtain a Service Key:

1. Go to the Foursquare Developer Console at https://foursquare.com/developers/
2. Create a new project or select an existing one
3. Navigate to the API Keys section
4. Generate a new Service Key for the Places API

After setting the following connection properties, you are ready to connect:

• AuthScheme: Set this to APIKey.
• ServiceKey: Set this to your Foursquare Service Key obtained from the Developer Console.
• XPlacesApiVersion: (Optional) Set this to the API version date. Defaults to 2025-06-17.

Example APIKey connection string

Profile=C:\profiles\Foursquare.apip;AuthScheme=APIKey;ProfileSettings='APIKey=your_personal_access_token';

Create a Profile for the ODBC Driver for Foursquare

Follow the steps below to use the Database Painter tool to create a database profile based on an ODBC DSN (data source name) for Foursquare. In the Database Painter, you can use wizards and the UI to work with Foursquare data.

1. In PowerBuilder, click Tools -> Database Painter.
2. In the Objects window in the Database Painter, right-click the ODBC node and click New Profile.
3. On the Connection tab, enter a name for the profile and select the Foursquare DSN in the Data Source menu.
4. To view and modify a table, right-click a table and then click Edit Data -> Grid.

Using Foursquare Data with PowerBuilder Controls

You can use standard PowerBuilder objects to connect to ODBC data sources and execute queries. The following example shows how to retrieve Foursquare data into a DataWindow. You can add the following code to the open method:

SQLCA.DBMS = "ODBC"
SQLCA.DBParm = "ConnectString='DSN=CData API Source'"
CONNECT USING SQLCA;
dw_autocomplete.SetTransObject(SQLCA);
dw_autocomplete.Retrieve();