Today, I developed an application that asks users for their location (be it PC or cell phones) and then it displays the latitude and longitude (Geo-Location identification), it even looks up the address (Reverse Geocoding) from Google Maps API. I also store HTTP headers so that this information can be used to identify the device used (I’m working on it right now!)

Okay! This might not involve a lot of App Engine Code, just some basic code to store user location (datastore) and Users API from Google.

These things which are stored can be viewed in an Administrator Area which shows the last 100 peoples’ information.

But this has a lot of jQuery and JavaScript code in it! I know jQuery sounds fancy but just visit W3CSchools jQuery tutorial and finish it (it’ll not take you more than 5-10 minutes), you’ll understand (almost) every line of code.

What I’ve used:

• Google App Engine (webapp2, Python 2.7)
• jQuery
• Google Maps V3 API

The code can be found here. It’s well commented and I expect you to know a bit of GAE (templates as well), jQuery is used a lot so a bit of that as well. Lookup Google Maps documentation if you don’t understand the code written for Google Maps.