I downloaded your Xcode project, but when I run it I get a blank screen. No errors, just a white screen. Has there been some changes to the way facebook uses their API?

Cheers,

David

Else you can ‘patch’ the project you have, by removing the two lines you reference above and replace with:

//remove everything ‘&’ (inclusive) onward…
NSRange period_range = [access_token rangeOfString:@"&"];

//move beyond the .
access_token = [access_token substringToIndex:period_range.location];

Thanks,
Dominic

It worked great the first few times for me. Then I changed users a few times and now I’m seeing some odd results.

Previously, I was getting “normal” access tokens. Now, I see things like:

125043510846930|2.n1N6v_oIUWQsIZXmwoD2MQ__.8….(etc)

The problem is that this statement breaks the functionality:

——————-
FbGraph.m line 237:

//finally we want to remove anything that occurs after a ‘.’
NSRange period_range = [access_token rangeOfString:@"."];
——————-

My access token is now “125043510846930|2.”, which causes the oAuth exception: “Invalid access token signature.”

Any help in getting past this would be greatly appreciated.

Thanks!

Is there a way of doing this using NSURLRequest?

——————–
6/22/2010 Part 2 of this series will be released on 6/29. With that post I’ll show off a pseudo API with the ability to upload files from your iPhone to Facebook using a NSMutableURLRequest.

Dominic

http://blog.corywiles.com/facebook-graph-api-with-a-native-iphone-appli