When a user accept the permissions of a new app a unique coupon is generated, in that coupon a barcode with the facebook id of the user is printed as well. When a person use its coupon to obtain its discount/prize the barcode is readed using a barcodereader gun + an AIR app;
The data of the person is saved in a SQLLite database and a new post is made on behalf of him based on the action that the person has done.
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