Facebook Graph API: Swift SDK not working: GraphRequest - swift

Question

I've been trying to follow Facebooks documentation exactly but can't understand why my code doesn't work, even though it is exactly as in the docs. I am already signing into Facebook on my app, but I need to get the profile data.
Here is my function.
func fetchFacebookUser() {
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()
}
You'll notice it is exactly like the documentation:
https://developers.facebook.com/docs/swift/graph
But I can't even build the project because I get this error in Xcode:
Contextual closure type '(GraphRequestConnection?, Any?, Error?) -> Void' expects 3 arguments, but 2 were used in closure body
Insert ',<#arg#> '
It has the 'Fix' button but that just breaks the whole thing and Xcode (red warning) complains that none of the cases in the switch statement exist.
I have searched everywhere, the closest solution I got was this SO post: Facebook GraphRequest for Swift 5 and Facebook SDK 5
But that had no answers :(
I'm sure someone has called the Graph API using Swift? What am I missing here?

Answer 1

However i implement facebook login my app which works fine.
On button click I called facebook login using LoginManager.
#IBAction func continueWithFacebook(_ sender: Any) {
let fbLoginManager : LoginManager = LoginManager()
fbLoginManager.logIn(permissions: ["email"], from: self) { (result, error) -> Void in
if (error == nil){
let fbloginresult : LoginManagerLoginResult = result!
if (result?.isCancelled)!{
return
}
if(fbloginresult.grantedPermissions.contains("email")) {
self.getFBUserData()
}
}
}
}
After that I get the data of user using GraphAP
func getFBUserData() {
if((AccessToken.current) != nil){
GraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, picture.type(large), email"]).start(completionHandler: { (connection, result, error) -> Void in
if (error == nil){
guard let userDict = result as? [String:Any] else {
return
}
if let picture = userDict["picture"] as? [String:Any] ,
let imgData = picture["data"] as? [String:Any] ,
let imgUrl = imgData["url"] as? String {
self.uURLString = imgUrl
/*let url = URL(string: imgUrl)*/
print(imgData)
}
if let n = userDict["name"] as? String {
self.name = n
}
if let e = userDict["email"] as? String {
self.email = e
}
self.socialLogIn()
}
})
}
}
Add in your pod file -
pod 'FBSDKCoreKit' and
pod 'FBSDKLoginKit'
Try using like this you will get your derided result.
Happy Coding