how to tell if user responded to my facebook request? -


i don't understand should after invitable friends call. procedure till im stuck:

i have facebook canvas app, app ios/android native canvas redirection only.

https://developers.facebook.com/docs/games/invitable-friends/v2.0 

according this:

*. list of friends when call (i did it)

*. tokens, when press friend, token entering array later used "to" in javascript api

*. press send , invite.

ok see this:

rewarding sender  1)upon sending request, store request id returned in response game request dialog , match upon receipt reward sender.  2)read requests receiver , reward sender based on id in "from" field. 

what exact way 2 ( 'and match upon receipt reward sender' <- , hell mean? )?


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