如何通过Graph API获取用户的性别或电子邮件等特定字段

import FacebookCore

    let connection = GraphRequestConnection()
    connection.add(GraphRequest(graphPath: "/me")) { httpResponse, result in
      switch result {
      case .success(let response):
        print("Graph Request Succeeded: \(response)")
      case .failed(let error):
        print("Graph Request Failed: \(error)")
      }
    }
    connection.start()

登录成功后执行。现在我得到的,只是一些基本信息,比如姓名或身份证。

不过,我还是需要性别和电子邮件…所以我尝试了这个:

let params = ["fields": "id, name, gender, email"]

然后:

 connection.add(GraphRequest(graphPath: "/me", parameters: params)) { httpResponse, result in

不过,我还是得到了同样的数据,只是 id 和 name