I'm initializing Koala with one FB App's info (app id, secret, callback url) and that is the usual one that I need to use for making graph api calls.
However, I need to occasionally make calls within the same RoR process to the FB graph api for a different FB App. What's the best way to do this for one-off calls that I need to make for the 2nd FB App? I thought initializing a new object like this would work, but it still seems to be using the original app info:
k = Koala::Facebook::API.new(user_fb_token, APP_2_SECRET)
Ideally, it can support multiple apps at the same time so that I don't have to worry about other calls accidentally using the 2nd app if I re-initialize Koala.
Just in case it's still open - you can easily use Koala for several FB apps at the same time.
The thing is that your user_fb_token is dependent upon app, not a general user token. It's actually user_fb_token_for_app_1, and user_fb_token_for_app_2. And then you create two instances of Koala for two different tokens.
As a side effect, you would need to follow two login procedures for each app to get two tokens for the same user.
Useful link: Access Token "debugger" by FB to see details on token:
There you would see that user token actually belongs to specific fb app.