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1. What is this app?
CTCTSampleApp is a Java web app that demonstrates basic Constant Contact
functionality. Constant Contact is an email marketing tool used by small

2. How do I build it?
OK, so I don't use Maven. And you can't make me. I do however use Eclipse, so 
here's what you need to build the app in Eclipse.

- First, download the source code and import it into an eclipse project (a
Dynamic Web Project will be sufficient).

- Locate the following jar files on your system (or download them if you
don't have them):
scribe-1.1.1.jar - Make sure you are using a relatively recent version
that has my Constant Contact changes. See
jdom.jar (version 1.1.1 currently being used)

You will also need the SQL Server JDBC driver if you choose to use the default
database that this version of the app supports. This is available from Microsoft - just
search google for "sql server jdbc driver download" and you'll find it. Install it.
You'll need to put the jar file somewhere where you web container can find it also, typically
in a 'lib' or 'common' directory in your Tomcat, Glassfish, whatever install.

- The app also requires the HttpServlet classes. I use the tried and true javax
versions, but you should get this for free from Eclipse when using a Dynamic
Web Project.

- Update your build path to include the above jar files. It should build.

3. How do I run the app?
There are a number of configuration tasks you need to perform in order to run
the application.
- Database configuration. The app uses a SQL database (really just one table)
to store OAuth tokens for each user who has authenticated to the app. In the
current version, I used SQLEXPRESS, mostly becuase I had recently done other
projects using SQLEXPRESS and it was the fast path. You will need to create
the database and the table. To do this, run the SQLEXPRESS commandline as follows:

sqlcmd -S host\instance -U username -P password -f createdb.db

This creates the database. Then run it again to create the table that stores
the access tokens:

sqlcmd -S host\instance -U username -P password -f createtbl.tbl

- Hibernate configuration
Once the database is created, you need to configure Hibernate to use it. In
the 'src' directory of the code tree you will find 3 hibernate config files:

hibernate.reveng.xml - you don't need to do anything with this. It is used for
reverse engineering the database and generating Hibernate classes. I have done
that for you.

hibernate.cfg.xml - if you use SQLEXPRESS and its JDBC driver, there is also
nothing you need to do with this file. If you decide to use another database,
this is where you will need to tell hibernate what driver you are using. - this stores the connection string and credentials for
connecting to the database. You'll need to plug in the values for your instance
of SQLEXPRESS or whatever database you have chosen.

- API configuration
Constant Contact like most modern REST APIs uses an API key and consumer
secret to identify your application. If you want to use the app against 
Constant Contact, you will need to go to
and request your API key. Just sign up for the free trial on their main
site and then go over to the developer site to get your key. Once you have
it, there is a file in 'src/com/ballc/gasuite' called
Enter your key and secret values there, and then place the file in a location
where the java classes can load it from. This varies a bit - on Glassfish it
is place in the 'config' directory under your domain.

- Deploy the app.
Depending on your J2EE container, this might vary. For my development work,
I used Glassfish from Oracle (the open source version) and ran it directly
out of Eclipse, which makes for easy code-deploy-test cycles. For most 
containers there is a deploy tool, or for really simple tests, you can do a
'drop and deploy' by just dropping a war or ear file built from the source
into the deploy directory.

4. What does the app do?
It was really designed to help me get familiar with the Constant
Contact REST APIs, so the functionality is fairly simple - read some
mailing lists, read the contacts on the list, add someone to a list.

The most useful piece, one that I could not find anywhere else, is the
OAuth web flow piece. If you stripped out all the Constant Contact
specific stuff, and just kept the database, hibernate and the two OAuth
related servlets (AuthServet and OAuthCallbackServlet) you have the
core infrastructure needed to "OAuth-enable" a website. With a production
quality database, there is no reason why this implementation would not
scale to be useful in commercial applications. 


A sample application that uses the Constant Contact APIs, java and jQuery






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