What is the length of the access_token in Facebook OAuth2?

Question

I searched on Google and StackOverflow to find a answer to my question but I can\'t find one.

I\'d like to store the access_token to my database for offline access a

Answer 1

Recently, our app has been seeing them longer than 100 characters. I'm still looking for documentation so I can figure out a 'safe' field size for them.