Connect to SendGrid Data from a Connection Pool in Jetty

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The SendGrid JDBC Driver supports connection pooling: This article shows how to connect faster to SendGrid data from Web apps in Jetty.

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

    <Configure id='sendgriddemo' class="org.eclipse.jetty.webapp.WebAppContext"> <New id="sendgriddemo" class=""> <Arg><Ref refid="sendgriddemo"/></Arg> <Arg>jdbc/sendgriddb</Arg> <Arg> <New class="cdata.jdbc.sendgrid.SendGridDriver"> <Set name="url">jdbc:sendgrid:</Set> <Set name="User">admin</Set> <Set name="Password">abc123</Set> </New> </Arg> </New> </Configure>

    To make use of all the available features, provide the User and Password connection properties.

    To connect with limited features, you can set the APIKey connection property instead. See the "Getting Started" chapter of the help documentation for a guide to obtaining the API key.

  4. Configure the resource in the Web.xml:

    jdbc/sendgriddb javax.sql.DataSource Container
  5. You can then access SendGrid with a lookup to java:comp/env/jdbc/sendgriddb: InitialContext ctx = new InitialContext(); DataSource mysendgrid = (DataSource)ctx.lookup("java:comp/env/jdbc/sendgriddb");

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.