You have change your status from In Development mode to Live mode, for this you have to click on Off button, after click on Off button, then modal will pop up and here you have to select Category and click on Switch Mode button.
In this step by step post, i give you example of sign in with facebook account from scratch.
Lastly, for get user profile data, here we have use getGraphUser , this method will creating a graph user collection.
Screenshot : 4 Now, you have to add platform.
Go On Facebook Developer account :.
Below you can find step by step process for create Facebook app in Facebook developers dashboard.