Facebook Access Token [Javascript SDK]

Question

I am writing Facebook login for my site.I am using Javascript Sdk,but I don\'t understand one thing.

  function fbLogin() {
   FB.login(function(response) {
   i         


        

Answer 1

Can I trust he access token(response.authResponse.accessToken) for identify the user?

Of-course yes!

Can Facebook change the access token ?

Nope. But it expires after 2 hours, so you have to get the token again. If you want to use this token in future; you can extend the life of the token to 60 days.

You can read more about access tokens here.

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[Edit]

The token also becomes invalidated in the following cases-

• User changes the password
• User de-authorizes the app
• User removes the app