Get Info and Image with facebook authentication - SWIFT FacebookSDK - swift

Question

I'm trying to learn something about swift and facebook.
I integrated the SDK manually without using the pods and so far everything is ok!
I created a LogIn button by following some online guides and this works too!
Through this code located in the ViewController I can also print Id, First_Name, Last_Name and receive the ProfilePicture info :
import UIKit
import FBSDKCoreKit
import FBSDKLoginKit
class ViewController: UIViewController, FBSDKLoginButtonDelegate {
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!) {
if (error == nil) {
print("Connected")
let r = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"email,first_name,last_name,picture.type(large)"], tokenString: FBSDKAccessToken.current()?.tokenString, version: nil, httpMethod: "GET")
r?.start(completionHandler: { (test, result, error) in
if(error == nil)
{
print(result as Any)
}
})
} else
{
print(error.localizedDescription)
}
}
func loginButtonWillLogin(_ loginButton: FBSDKLoginButton!) -> Bool {
return true
}
func loginButtonDidLogOut(_ loginButton: FBSDKLoginButton!) {
print("Disconnected")
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let loginButton = FBSDKLoginButton()
loginButton.readPermissions = ["public_profile", "email"]
loginButton.center = self.view.center
loginButton.delegate = self
self.view.addSubview(loginButton)
}
}
The OutPut is this :
Optional({
email = "cxxxxxxxxx2#live.it";
"first_name" = Cxxxxxe;
id = 10xxxxxxxxxxxxx75;
"last_name" = Lxxxxxo;
picture = {
data = {
height = 200;
"is_silhouette" = 0;
url = "https://platform-lookaside.fbsbx.com/platform/profilepic/?asid=10xxxxxxxxxxxxx75&height=200&width=200&ext=1565467901&hash=AeQ-NalWNEMh91CK";
width = 200;
};
};
})
Now I don't know how to extract a single information such as the first_name in a variable to be able to print it in a label or take the url of the image to print it in the app.
if I try to change inside the login function like this :
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!) {
if (error == nil) {
print("Connected")
let r = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"email,first_name,last_name,picture.type(large)"], tokenString: FBSDKAccessToken.current()?.tokenString, version: nil, httpMethod: "GET")
r?.start(completionHandler: { (test, result, error) in
if(error == nil)
{
print(result!["first_name"] as Any)
}
})
} else
{
print(error.localizedDescription)
}
}
the compiler tells me : "Value of type 'Any' has no subscripts".
How can i do this?
Thanks ;)

Answer 1

in the result you should put
result.user
and that object is the one that contains the properties like displayName, or firstName for this matter

Answer 2

I created the labels and for now I solved it this way:
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!) {
if (error == nil) {
print("Connected")
let r = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"email,first_name,last_name,picture.type(large)"], tokenString: FBSDKAccessToken.current()?.tokenString, version: nil, httpMethod: "GET")
r?.start(completionHandler: { (test, result, error) in
if let id : NSString = (result! as AnyObject).value(forKey: "id") as? NSString {
print("id: \(id)")
self.lbl_fbid.text = "ID: \(id)"
}
if let first_name : NSString = (result! as AnyObject).value(forKey: "first_name") as? NSString {
print("first_name: \(first_name)")
self.lbl_fbdirstname.text = "First_Name: \(first_name)"
}
if let last_name : NSString = (result! as AnyObject).value(forKey: "last_name") as? NSString {
print("last_name: \(last_name)")
self.lbl_fblastname.text = "First_Name: \(last_name)"
}
if let email : NSString = (result! as AnyObject).value(forKey: "email") as? NSString {
print("email: \(email)")
self.lbl_fbemail.text = "Email: \(email)"
}
})
} else
{
print(error.localizedDescription)
}
}
Now I just have to figure out how to take the profile pic...

Answer 3

All done... if someone need the code i wrote this:
func loginButton(_ loginButton: FBSDKLoginButton!, didCompleteWith result: FBSDKLoginManagerLoginResult!, error: Error!) {
if (error == nil) {
print("Connected")
let r = FBSDKGraphRequest(graphPath: "me", parameters: ["fields":"email,first_name,last_name,picture.type(large)"], tokenString: FBSDKAccessToken.current()?.tokenString, version: nil, httpMethod: "GET")
r?.start(completionHandler: { (test, result, error) in
if let id : NSString = (result! as AnyObject).value(forKey: "id") as? NSString {
print("id: \(id)")
self.lbl_fbid.text = "ID: \(id)"
}
if let imageURL = (((((result! as AnyObject).value(forKey: "picture")) as AnyObject).value(forKey: "data")) as AnyObject).value(forKey: "url") as? NSString{
print("img url: \(imageURL)")
let url = URL(string: imageURL as String)
DispatchQueue.global().async {
let data = try? Data(contentsOf: url!)
DispatchQueue.main.async {
self.img_fbprofilepic.image = UIImage(data: data!)
}
}
}
if let first_name : NSString = (result! as AnyObject).value(forKey: "first_name") as? NSString {
print("first_name: \(first_name)")
self.lbl_fbdirstname.text = "First_Name: \(first_name)"
}
if let last_name : NSString = (result! as AnyObject).value(forKey: "last_name") as? NSString {
print("last_name: \(last_name)")
self.lbl_fblastname.text = "First_Name: \(last_name)"
}
if let email : NSString = (result! as AnyObject).value(forKey: "email") as? NSString {
print("email: \(email)")
self.lbl_fbemail.text = "Email: \(email)"
}
if(error == nil)
{
print(result as Any)
}
})
} else {
print(error.localizedDescription)
}
}