Connect to Vercel Data from a Connection Pool in Jetty

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

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

   Using API Key Authentication

   Vercel uses Bearer token authentication. You can use either a personal access token or an OAuth access token as the API key.

   To obtain a personal access token:

   1. Log into your Vercel account at https://vercel.com/
   2. Navigate to Account Settings > Tokens.
   3. Click Create Token, enter a name and expiration, and click Create.
   4. Copy the generated token (it will only be shown once).

   After obtaining your token, set the following connection properties:

   • AuthScheme: Set this to APIKey.
   • APIKey: Set this to your Vercel personal access token or OAuth access token.

   Example Connection String

   Profile=C:\profiles\Vercel.apip;AuthScheme=APIKey;APIKey=your_access_token;
   

   Working with Teams

   Many Vercel resources are scoped to a team. To scope all requests to a specific team, set the TeamId connection property to your team's ID. You can find your team ID by querying the Teams table or from the Vercel dashboard. Alternatively, you can specify TeamId in your SQL queries using the WHERE clause where supported.

   Connecting to Vercel

   Once the authentication is configured, you can connect to Vercel and query data from any of the available tables such as Projects, Deployments, Teams, and Domains.

4. Configure the resource in the Web.xml:

   
     jdbc/verceldb
     javax.sql.DataSource
     Container
   
   

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

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

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.