JSONC Of Picasa Web Ablum

What is JSON and JSONC?

JSON, short for JavaScript Object Notation, is a lightweight computer data interchange format. It is a text-based, human-readable format for representing simple data structures and associative arrays (called objects). - wiki

JSONC: Clean, Compact, and Customizable. Minimize the number of JavaScript objects

You guys might have used a lot of JSON data in your web page, web application etc. If you are familiar with Blogger template, you might ever received your Picasa web album JSON format data by calling Javascript function in your blogger by using this URL

http://picasaweb.google.com/data/feed/api/user/userID?alt=json&callback=?

Whatever you receive JSON data by Javascript callback function or jQuery Ajax callback funtion. You need to parse callback json data and get the data what you need. There are too many objects in that data. It's a little complicate to get current fields you need.

Google Data Protocol support JSONC data format return in Google Web Album. That let you guys can receive data from Google Web Album more easy than before. What do we receive the JSONC format data. Changing feed URL to

http://picasaweb.google.com/data/feed/api/user/userID?v=2&alt=jsonc&callback=?

Conclusion

It's a easy way to receive your Google Web Album data by modify feed URL arguments. The simple object data means you can decrease callback response time and increase the web page performance. If you are interested in performance articles, you should read following link

Reference

1. Data APIs Version 2 Migration Guide
2. Evolution of the Google Data Protocol: New Features for Building more Efficient Applications