LinkedIn API - get information about my ALL Connections

I have used Facebook API but I am new to Linkedin api.

I need some help on how to get information (name, birthday, etc) about my ALL Connections, and I need help with both the token and the info-related API calls.

As for the token -- in Facebook there is the Facebook Console to generate tokens at runtime and test our API calls... Does LinkedIn have something similar?

Update: I'm able to get list of connections using:

http://api.linkedin.com/v1/people/~/connections?modified=new

... but how can I also get birthdates (if shared publicly)? I've attempted:

http://api.linkedin.com/v1/people/~/connections:(headline,first-name,last-name,date-of-birth)

...however, that shows me the first and last name but NOT the date of birth.

You can use the rest console here: http://developer.linkedin.com/rest-console

I hope this helps.

Update: LinkedIn has restricted their open API access, and this no longer works.