Google Picker, get OAuth token

Question

I am using Google Picker inside of my project. Now, it has to use the OAuth token or you get the message ("Invalid credentials (missing or invalid oAuth token)").

I want to get that token from my user. I don't know how to do it.

I know it has to use OAuth 3-legged to get permissions of my client.

Can you help me, please?

Diego.

Answer 1

Well, I have manage my problem using OAuth 2.0 and this library. Ask me if you have any problem.