auth.extendssoaccesstoken fails 100% of the time

[blotto]

We're using fb_graph (2.6.5), on our Heroku hosted App.  Our use of this gem is pretty simple :

 def self.get_facebook_user fb_token

    user = FbGraph::User.me(fb_token)

    user.fetch

  end

On looking at our 'Facebook > Insights > Activity & Errors' page there is only one method that triggers an error, but it occurs 100% of the time.  The method call is auth.extendssoaccesstoken and every call to it fails.  This is an iOS app where users login with facebook, we pick up the token from a hash where it is then passed to the above method.

I cant seem to pinpoint the reason why we would see  auth.extendssoaccesstoken  fail so badly.  I presume a config issue somewhere, but I am at a loss.

Any ideas?

Thanks

Nick

[nov matake]

First, check heroku log.

nov

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[blo...@gmail.com]

I dont see any outgoing calls to this api. Unless im grepping wrong. e.g.

heroku logs  | grep 'facebook' 

 or any related keywork like auth, etc.  shows nothing

Im starting to think the iOS client could be to blame.

Thx

[pom...@gmail.com]

I'm also looking for this kind of problem.... and I found this from facebook developers:

https://developers.facebook.com/roadmap/offline-access-removal/#extend_token

my case is Scenario 5: Page Access Tokens,

the question is, how can we extend the access token ? I tried this method but it don't work:

fb_auth = FbGraph::Auth.new(YOUR_APP_ID, YOUR_APPLICATION_SECRET)
fb_auth.exchange_token! 'short-life-access-token'
fb_auth.access_token

Is there any raw method to call new endpoint?

https://graph.facebook.com/oauth/access_token?             
    client_id=APP_ID&
    client_secret=APP_SECRET&
    grant_type=fb_exchange_token&
    fb_exchange_token=EXISTING_ACCESS_TOKEN 

[Wes Gamble]

What does "it don't work" mean?

Do you get an access token? If so, is the expiry date later?

Wes

[nov matake]

You can see actual HTTP request & response by using fb_graph's debugging feature.

https://github.com/nov/fb_graph/wiki/Debugging