Connect to Gumroad Data from a Connection Pool in Jetty

The CData JDBC driver for Gumroad is easy to integrate with Java Web applications. This article shows how to efficiently connect to Gumroad data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for Gumroad in Jetty.

Configure the JDBC Driver for Salesforce as a JNDI Data Source

Follow the steps below to connect to Salesforce from Jetty.

1. Enable the JNDI module for your Jetty base. The following command enables JNDI from the command-line:

   java -jar ../start.jar --add-to-startd=jndi
   

2. Add the CData and license file, located in the lib subfolder of the installation directory, into the lib subfolder of the context path.

3. Declare the resource and its scope. Enter the required connection properties in the resource declaration. This example declares the Gumroad data source at the level of the Web app, in WEB-INF\jetty-env.xml.

   <Configure id='gumroaddemo' class="org.eclipse.jetty.webapp.WebAppContext">
    <New id="gumroaddemo" class="org.eclipse.jetty.plus.jndi.Resource">
    <Arg><Ref refid="gumroaddemo"/></Arg>
    <Arg>jdbc/gumroaddb</Arg>
    <Arg>
    <New class="cdata.jdbc.api.APIDriver">
    <Set name="url">jdbc:api:</Set>
    <Set name="Profile">C:\profiles\Gumroad.apip</Set>
    <Set name="AuthScheme">OAuth</Set>
    <Set name="InitiateOAuth">GETANDREFRESH</Set>
    <Set name="OAuthClientId">your_client_id</Set>
    <Set name="OAuthClientSecret">your_client_secret</Set>
    <Set name="CallbackUrl">your_callback_url</Set>
    </New>
    </Arg>
    </New>
   </Configure>
   

   Using OAuth Authentication

   To authenticate to Gumroad and connect to your own data or to allow other users to connect to their data, you can use the OAuth 2.0 standard. This is the recommended authentication method.

   First you need to register an OAuth application with Gumroad. You can create an OAuth application by visiting your Gumroad account settings at https://app.gumroad.com/settings/advanced and navigating to the Applications section.

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

   • AuthScheme: Set this to OAuth.
   • InitiateOAuth: Set this to GETANDREFRESH. The CData API Profile for Gumroad will automatically walk through the OAuth process in order to obtain the access token.
   • OAuthClientID: Set this to the client_id that is specified in your app settings.
   • OAuthClientSecret: Set this to the client_secret that is specified in your app settings.
   • CallbackURL: Set this to the Redirect URI you specified in your app settings.

   Example connection string

   Profile=C:\profiles\Gumroad.apip;AuthScheme=OAuth;InitiateOAuth=GETANDREFRESH;OAuthClientId=your_client_id;OAuthClientSecret=your_client_secret;CallbackUrl=your_callback_url;
   

4. Configure the resource in the Web.xml:

    jdbc/gumroaddb
    javax.sql.DataSource
    Container
   
   

5. You can then access Gumroad with a lookup to java:comp/env/jdbc/gumroaddb:

   InitialContext ctx = new InitialContext();
   DataSource mygumroad = (DataSource)ctx.lookup("java:comp/env/jdbc/gumroaddb");
   

More Jetty Integration

The steps above show how to configure the driver in a simple connection pooling scenario. For more use cases and information, see the Working with Jetty JNDI chapter in the Jetty documentation.