Get logged-in user profile information with Facebook Login

Question

I am integrating Facebook Login with JavaScript SDK on my website. With the following function:

FB.api('/me', function(response) {
    console.log(JSON.stringify(response));
});

I get the following logged-in user information:

{"id":"xxxx","email":"xxxx","first_name":"xxxx","gender":"xxxx","last_name":"xxxx","link":"https://www.facebook.com/xxxxx","locale":"xxx","name":"xxxx","timezone":xx,"updated_time":"xxxxx","verified":true}!

It is possible to get user's age and birthday to verify if user is 18 or older? If yes, how can I do that?

Answer 1

您需要配置Facebook“应用”（API密钥）以请求访问该配置文件数据的权限。

Answer 2

Use any available public profile information before asking for a permission. For example, there is an age_range field included in the public profile for anyone who installs your app. This field may be sufficient for your app instead of requesting user_birthday permission.

read more here https://developers.facebook.com/docs/facebook-login/permissions/v2.3#reference-public_profile

-- UPDATE --

You'll have to explicitly tell the API that you need age_range. The user's age range may be 13-17, 18-20 or 21+.

/* make the API call v.2.3 */
FB.api(
    "/me?fields=age_range",
    function (response) {
      if (response && !response.error) {
        /* handle the result */
      }
    }
);

This should return something like:

{
   "age_range": {
      "min": 21
   },
   "id": <user_id>
}

FIELDS

• max (unsigned int32) The upper bounds of the range for this person's age. enum{17, 20, or empty}.

• min (unsigned int32) The lower bounds of the range for this person's age. enum{13, 18, 21} Default

age range field documentation here https://developers.facebook.com/docs/graph-api/reference/age-range/

how to use fields docs here https://developers.facebook.com/docs/graph-api/using-graph-api/v2.3#fields