Here is the issue I'm experiencing:
When a user is logged into Facebook and I execute the following code:
FB.api('/me', function(user) {
alert(user.name);
});
An alert pops up displaying "Undefined."
However, if I modify the code like this:
FB.api( /[MY_REAL_FACEBOOK_ID], function(user) {
alert(user.name);
});
It responds correctly.
How is this possible? Why does '/me' never seem to work?
It seems like there may be a confusion between querying "/me" in the context of the app versus the user. The documentation is not very clear on this point, but I have encountered the same issue.
Have you tried utilizing FB.getLoginStatus?
Once I have set up FB.init, I usually make a call to FB.getLoginStatus as shown below. While there might be alternative methods, this approach has been effective for me.
I hope this information is useful:
FB.getLoginStatus(function (response) {
if (response.session) {
// User is logged in and connected, someone within your network
graphUrl = "https://graph.facebook.com/me?access_token=" + response.session.access_token + "&callback=displayUser"
var script = document.createElement("script");
script.src = graphUrl;
document.body.appendChild(script);
} else {
// No active user session, unidentified individual
}});
function displayUser(user) {
alert(user.name);
}
Here is a solution to tackle the issue of Undefined:
window.fbAsyncInit = function() {
// Initialize the Facebook JavaScript SDK
FB.init({
appId : your_app_id,
status : true,
xfbml : true
});
// Additional setup code like adding Event Listeners can be added here
FB.getLoginStatus(function(response) {
if (response.status === 'connected') {
alert("User is connected");
connected=true;
FB.api('/me', function(user) {
alert(user.name);
alert(user.first_name);
alert(user.last_name);
alert(user.email);
});
}
});
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