Connect to ZenRows Data from a Connection Pool in Jetty

The CData JDBC driver for ZenRows is easy to integrate with Java Web applications. This article shows how to efficiently connect to ZenRows data in Jetty by configuring the driver for connection pooling. You will configure a JNDI resource for ZenRows 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 ZenRows data source at the level of the Web app, in WEB-INF\jetty-env.xml.

   
   
   <Configure id='zenrowsdemo' class="org.eclipse.jetty.webapp.WebAppContext">
       <New id="zenrowsdemo" class="org.eclipse.jetty.plus.jndi.Resource">
       <Arg><Ref refid="zenrowsdemo"/></Arg>
       <Arg>jdbc/zenrowsdb</Arg>
       <Arg>
         <New class="cdata.jdbc.api.APIDriver">
           <Set name="url">jdbc:api:</Set>
           <Set name="Profile">C:\profiles\ZenRows.apip</Set>
           <Set name="AuthScheme">APIKey</Set>
           <Set name="ProfileSettings">'APIKey</Set>
         </New>
       </Arg>
     </New>
   </Configure>
   

   Start by setting the Profile connection property to the location of the ZenRows Profile on disk (e.g. C:\profiles\ZenRows.apip). Next, set the ProfileSettings connection property to the connection string for ZenRows (see below).

   ZenRows API Profile Settings

   To use the ZenRows API, you need to obtain an API key from your ZenRows account. Navigate to the ZenRows dashboard at app.zenrows.com and copy your API key from the account settings.

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

   • AuthScheme: Set this to APIKey.
   • APIKey: Set this to your ZenRows API key.

4. Configure the resource in the Web.xml:

   
   
     jdbc/zenrowsdb
     javax.sql.DataSource
     Container
   
   

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

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

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.