Create a Data Access Object for Twilio Data using JDBI

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Twilio JDBC Driver

Complete read-write access to Twilio enables developers to search (Accounts, Applications, Messages, Recordings, etc.), update items, edit customers, and more, from any Java/J2EE application.



A brief overview of creating a SQL Object API for Twilio data in JDBI.

JDBI is a SQL convenience library for Java that exposes two different style APIs, a fluent style and a SQL object style. The CData JDBC Driver for Twilio integrates connectivity to live Twilio data in Java applications. By pairing these technologies, you gain simple, programmatic access to Twilio data. This article walks through building a basic Data Access Object (DAO) and the accompanying code to read and write Twilio data.

Create a DAO for the Twilio Calls Entity

The interface below declares the desired behavior for the SQL object to create a single method for each SQL statement to be implemented.

public interface MyCallsDAO { //insert new data into Twilio @SqlUpdate("INSERT INTO Calls (StartTime, Duration) values (:startTime, :duration)") void insert(@Bind("startTime") String startTime, @Bind("duration") String duration); //request specific data from Twilio (String type is used for simplicity) @SqlQuery("SELECT Duration FROM Calls WHERE StartTime = :startTime") String findDurationByStartTime(@Bind("startTime") String startTime); /* * close with no args is used to close the connection */ void close(); }

Open a Connection to Twilio

Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Twilio.

Use the AccountSid and AuthToken connection properties to access data from your account. You obtain your live credentials on your Twilio account dashboard. Click Account -> Account Settings to obtain your test credentials.

Built-in Connection String Designer

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

java -jar cdata.jdbc.twilio.jar

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

A connection string for Twilio will typically look like the following:

jdbc:twilio:AccountSid=MyAccountSid;AuthToken=MyAuthToken;

Use the configured JDBC URL to obtain an instance of the DAO interface. The particular method shown below will open a handle bound to the instance, so the instance needs to be closed explicitly to release the handle and the bound JDBC connection.

DBI dbi = new DBI("jdbc:twilio:AccountSid=MyAccountSid;AuthToken=MyAuthToken;"); MyCallsDAO dao = dbi.open(MyCallsDAO.class); //do stuff with the DAO dao.close();

Read Twilio Data

With the connection open to Twilio, simply call the previously defined method to retrieve data from the Calls entity in Twilio.

//disply the result of our 'find' method String duration = dao.findDurationByStartTime("1/1/2016"); System.out.println(duration);

Write Twilio Data

It is also simple to write data to Twilio, using the previously defined method.

//add a new entry to the Calls entity dao.insert(newStartTime, newDuration);

Since the JDBI library is able to work with JDBC connections, you can easily produce a SQL Object API for Twilio by integrating with the CData JDBC Driver for Twilio. Download a free trial and work with live Twilio data in custom Java applications today.