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A PostgreSQL Interface for QuickBooks Online Data

Use the Remoting features of the QuickBooks Online JDBC Driver to create a PostgreSQL entry-point for data access.

There are a vast number of PostgreSQL clients available on the Internet. From standard Drivers to BI and Analytics tools, PostgreSQL is a popular interface for data access. Using our JDBC Drivers, you can now create PostgreSQL entry-points that you can connect to from any standard client.

To access QuickBooks Online data as a PostgreSQL database, use the CData JDBC Driver for QuickBooks Online and a JDBC foreign data wrapper (FDW). In this article, we compile the FDW, install it, and query QuickBooks Online data from PostgreSQL Server.

Connect to QuickBooks Online Data as a JDBC Data Source

To connect to QuickBooks Online as a JDBC data source, you will need the following:

  • Driver JAR path: The JAR is located in the lib subfolder of the installation directory.
  • Driver class: cdata.jdbc.quickbooksonline.QuickBooksOnlineDriver

  • JDBC URL: The URL must start with "jdbc:quickbooksonline:" and can include any of the connection properties in name-value pairs separated with semicolons.

    QuickBooks Online uses the OAuth authentication standard. OAuth requires the authenticating user to log in through the browser. To authenticate using OAuth, you can use the embedded OAuthClientId, OAuthClientSecret, and CallbackURL or you can obtain your own by registering an app with Intuit. Additionally, if you want to connect to sandbox data, set UseSandbox to true.

    See the Getting Started chapter of the help documentation for a guide to using OAuth.

    Built-in Connection String Designer

    For assistance in constructing the JDBC URL, use the connection string designer built into the QuickBooks Online JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

    java -jar cdata.jdbc.quickbooksonline.jar

    Fill in the connection properties and copy the connection string to the clipboard.

    A typical JDBC URL is below:

    jdbc:quickbooksonline:InitiateOAuth=GETANDREFRESH

Build the JDBC Foreign Data Wrapper

The Foreign Data Wrapper can be installed as an extension to PostgreSQL, without recompiling PostgreSQL. The jdbc2_fdw extension is used as an example.

  1. Add a symlink from the shared object for your version of the JRE to /usr/lib/libjvm.so. For example: ln -s /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/libjvm.so /usr/lib/libjvm.so
  2. Start the build: make install USE_PGXS=1

Query QuickBooks Online Data as a PostgreSQL Database

After you have installed the extension, follow the steps below to start executing queries to QuickBooks Online data:

  1. Log into your database.
  2. Load the extension for the database: CREATE EXTENSION jdbc2_fdw;
  3. Create a server object for QuickBooks Online: CREATE SERVER QuickBooksOnline FOREIGN DATA WRAPPER jdbc2_fdw OPTIONS ( drivername 'cdata.jdbc.quickbooksonline.QuickBooksOnlineDriver', url 'jdbc:quickbooksonline:InitiateOAuth=GETANDREFRESH', querytimeout '15', jarfile '/home/MyUser/CData/CData\ JDBC\ Driver\ for\ Salesforce MyDriverEdition/lib/cdata.jdbc.quickbooksonline.jar');
  4. Create a user mapping for the username and password of a user known to the MySQL daemon. CREATE USER MAPPING for postgres SERVER QuickBooksOnline OPTIONS ( username 'admin', password 'test');
  5. Create a foreign table in your local database: postgres=# CREATE FOREIGN TABLE customers ( customers_id text, customers_DisplayName text, customers_Balance numeric) SERVER QuickBooksOnline OPTIONS ( table_name 'customers');
You can now execute read/write commands to QuickBooks Online: postgres=# SELECT * FROM customers;