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It is possible to obtain information that the user of my site has or has not shared a particular post from my Facebook page?
Is there any callback in the API that runs when the user of my site clicks on the share button, so that I can record in the BD that he has already shared?
Facebook API? Ajax+PHP?
– Guilherme Nascimento
wlader, welcome to [en.so]! I edited your question to try to make it clearer. If you feel you don’t agree with your original intention, feel free to edit it. Hug!
– utluiz