Get wall information about your friends on Facebook API

I have a question about Facebook API.

Would it be possible to retrieve my friend's wall post via API?

I think I can get Facebook page and Group information after a lot of research, but I didn't know if I could get personal account (friend) wall information.

When I looked up the API, there was an article that said that I could post on my friend's wall via the API in the past, but now I can't.
http://facebook-docs.oklahome.net/archives/52072855.html

I would appreciate it if you could let me know if anyone knows the specifications around here.

Thank you for your cooperation!