How to write Facebook Graph Request for the new swift 3? - swift

Question

I'm trying to use the new FacebookSdk for Swift3, but I can't figure out how to accomplish a simple Graph request. I definitely have it all wrong. this is what I have below. has anyone figured it out?
import FacebookCore
import FacebookLogin
import FacebookShare
let parameters = ["fields": "id, name, gender, picture.width(300).height(300).type(large).redirect(false)"]
let nextrequest: GraphRequest = GraphRequest(graphPath: "me", parameters: parameters, accessToken: AccessToken.current, httpMethod: GraphRequestHTTPMethod(rawValue: "GET")!)
nextrequest.start({ (response: HTTPURLResponse?, result: GraphRequestResult<GraphRequest>) in
if error != nil {
}
if let name = result["name"] as? String, let id = result["id"] as? String, let gender = result["gender"] as? String {
print(name)
print(id)
print(gender)
}
else {}
})

Answer 1

If you still got the problem, try this
let loginManager = LoginManager()
loginManager.logIn([ .publicProfile, .email, .userFriends ], viewController: self) { loginResult in
switch loginResult {
case .failed(let error):
print(error)
case .cancelled:
print("User cancelled login.")
case .success(let grantedPermissions, let declinedPermissions, let accessToken):
print("Logged in!")
let req = GraphRequest(graphPath: "me", parameters: ["fields":"email,first_name,last_name,gender,picture"], accessToken: accessToken, httpMethod: GraphRequestHTTPMethod(rawValue: "GET")!)
req.start({ (connection, result) in
switch result {
case .failed(let error):
print(error)
case .success(let graphResponse):
if let responseDictionary = graphResponse.dictionaryValue {
print(responseDictionary)
let firstNameFB = responseDictionary["first_name"] as! String
let lastNameFB = responseDictionary["last_name"] as! String
let socialIdFB = responseDictionary["id"] as! String
let genderFB = responseDictionary["gender"] as! String
let pictureUrlFB = responseDictionary["picture"] as! [String:Any]
let photoData = pictureUrlFB["data"] as! [String:Any]
let photoUrl = photoData["url"] as! String
print(firstNameFB, lastNameFB, socialIdFB, genderFB, photoUrl)
}
}
})
}
}
https://github.com/facebook/facebook-sdk-swift/issues/65

Answer 2

let parameters = ["fields":"name,gender,birthday,first_name,last_name,email"]
let graphRequest = FBSDKGraphRequest(graphPath:"me", parameters:parameters)
_ = graphRequest?.start { [weak self] connection, result, error in
// If something went wrong, we're logged out
if (error != nil)
{
print("graphrequest error :\(error?.localizedDescription)")
return
}
// Transform to dictionary first
if let result = result as? [String: Any]
{
guard let firstname = result["first_name"] as? String else {
return
}
guard let lastname = result["last_name"] as? String else {
return
}
guard let gender = result["gender"] as? String else {
return
}
guard let email = result["email"] as? String else {
return
}
guard let birthday = result["birthday"] as? String else {
return
}
(...)
}
} // End of graph request

Answer 3

Update for > Swift 4:
Facebook SDK Version: 4.33.0
#IBAction func btnLoginWithFacebook(_ sender: Any) {
let loginManager = LoginManager()
loginManager.logIn(readPermissions: [.publicProfile, .email, .userBirthday, .userGender, .userLocation], viewController: self, completion: { loginResult in
switch loginResult {
case .failed(let error):
print(error)
case .cancelled:
print("User cancelled login.")
case .success(let grantedPermissions, let declinedPermissions, let accessToken):
self.getFbId()
print("Logged in! \(grantedPermissions) \(declinedPermissions) \(accessToken)")
}
})
}
func getFbId(){
if(AccessToken.current != nil){
let req = GraphRequest(graphPath: "me", parameters: ["fields": "email,first_name,last_name,gender,picture"], accessToken: AccessToken.current, httpMethod: GraphRequestHTTPMethod(rawValue: "GET")!)
req.start({ (connection, result) in
switch result {
case .failed(let error):
print(error)
case .success(let graphResponse):
if let responseDictionary = graphResponse.dictionaryValue {
print(responseDictionary)
let firstNameFB = responseDictionary["first_name"] as? String
let lastNameFB = responseDictionary["last_name"] as? String
let socialIdFB = responseDictionary["id"] as? String
let genderFB = responseDictionary["gender"] as? String
let pictureUrlFB = responseDictionary["picture"] as? [String:Any]
let photoData = pictureUrlFB!["data"] as? [String:Any]
let photoUrl = photoData!["url"] as? String
print(firstNameFB, lastNameFB, socialIdFB, genderFB, photoUrl)
}
}
})
}
}
Thanks!!!