Got two books on Google App Engine for Java

Recently I got two books on Google App Engine for Java. Programming Google App Engine by Oreilly and Beginning Google App Engine by Apress. There is less material and comprehensive…

Spoken on Google App Engine at a conference in UET

Today I had delivered a workshop on Developing Java Web Applications In Google App Engine. This workshop was the part of events of 3rd International Conference on Open Source Systems…

Tutorial: JPA on Google App Engine

This project will create and delete an entity record. I have chosen JPA for datastore in app engine. You can also look JDO for this purpose. But my choice to…

Pakzilla.com was down. Sorry for inconvenience

Some of you might have noticed that Pakzilla.com was down for a day. It was due to some technical maintenance and upgrade on hosting severs. I want to apologize for…

Upgrading to Google App Engine Java SDK 1.2.8

I was getting following exception while trying to code my first interaction with JPA in Google App Engine. After some searching I came to know that I should upgrade my…

Determine whether application is running on local server or App Engine

If you are working on developing some application on Google App Engine. You may come up with such situation to switch your production code with your local dev code. Following…

How to register an app with Twitter

If you want to develop a Twitter app. You need to register your application with Twitter. That means you should have your production URL ready before you think to start…

Concidel.com, my start-up company

Today I designed the home page of my company, Concidel. Behind the scene I am working on a Twitter application. Which will be the first product of Concidel. InshAllah after…

Free Twitter clients for Symbian S60 phones

Its quite a long time I was looking for a Twitter client for my Symbian S60 phone (Nokia 5320). Earlier I used JTwitter but it gone to paid application so…

Domain is not working without www prefix in GAE

The current issue I am working on is to make my naked domain http://mydomain.com to redirect to http://www.mydomain.com in Google App Engine. With www prefix I have configured my domain….