How can you check if a childByAutoID() already exists in the Firebase Realtime Database?
I am logging my users in with the Facebook and Google sign-in protocols. I am able to store these users by doing:
let firebaseID = Auth.auth().currentUser?.uid
let userID = user.userID
let fullName = user.profile.name
let email = user.profile.email
let provider = "Google"
guard let authentication = user.authentication else {return}
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken, accessToken: authentication.accessToken)
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
print("Failed to create Firebase User with Google: ", error)
return
}
print("Successful creation of Firebase User with Google")
let databaseRef = Database.database().reference()
let key = databaseRef.child("node").childByAutoId().key
let userInfo = ["UID": userID,
"Full Name": fullName,
"Email": email,
"Provider": provider]
let childUpdates = ["/Users/(key)/": userInfo]
databaseRef.updateChildValues(childUpdates)
Every time I sign in, even with the same credentials a new user is created with the same sign in user. How can I prevent a new instance from being created if a particular user has logged in before.
ios swift xcode firebase firebase-realtime-database
edited Nov 16 '18 at 8:19
KENdi
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
add a comment |
I am logging my users in with the Facebook and Google sign-in protocols. I am able to store these users by doing:
let firebaseID = Auth.auth().currentUser?.uid
let userID = user.userID
let fullName = user.profile.name
let email = user.profile.email
let provider = "Google"
guard let authentication = user.authentication else {return}
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken, accessToken: authentication.accessToken)
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
print("Failed to create Firebase User with Google: ", error)
return
}
print("Successful creation of Firebase User with Google")
let databaseRef = Database.database().reference()
let key = databaseRef.child("node").childByAutoId().key
let userInfo = ["UID": userID,
"Full Name": fullName,
"Email": email,
"Provider": provider]
let childUpdates = ["/Users/(key)/": userInfo]
databaseRef.updateChildValues(childUpdates)
Every time I sign in, even with the same credentials a new user is created with the same sign in user. How can I prevent a new instance from being created if a particular user has logged in before.
ios swift xcode firebase firebase-realtime-database
edited Nov 16 '18 at 8:19
KENdi
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
add a comment |
I am logging my users in with the Facebook and Google sign-in protocols. I am able to store these users by doing:
let firebaseID = Auth.auth().currentUser?.uid
let userID = user.userID
let fullName = user.profile.name
let email = user.profile.email
let provider = "Google"
guard let authentication = user.authentication else {return}
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken, accessToken: authentication.accessToken)
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
print("Failed to create Firebase User with Google: ", error)
return
}
print("Successful creation of Firebase User with Google")
let databaseRef = Database.database().reference()
let key = databaseRef.child("node").childByAutoId().key
let userInfo = ["UID": userID,
"Full Name": fullName,
"Email": email,
"Provider": provider]
let childUpdates = ["/Users/(key)/": userInfo]
databaseRef.updateChildValues(childUpdates)
Every time I sign in, even with the same credentials a new user is created with the same sign in user. How can I prevent a new instance from being created if a particular user has logged in before.
ios swift xcode firebase firebase-realtime-database
edited Nov 16 '18 at 8:19
KENdi
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
I am logging my users in with the Facebook and Google sign-in protocols. I am able to store these users by doing:
let firebaseID = Auth.auth().currentUser?.uid
let userID = user.userID
let fullName = user.profile.name
let email = user.profile.email
let provider = "Google"
guard let authentication = user.authentication else {return}
let credential = GoogleAuthProvider.credential(withIDToken: authentication.idToken, accessToken: authentication.accessToken)
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
print("Failed to create Firebase User with Google: ", error)
return
}
print("Successful creation of Firebase User with Google")
let databaseRef = Database.database().reference()
let key = databaseRef.child("node").childByAutoId().key
let userInfo = ["UID": userID,
"Full Name": fullName,
"Email": email,
"Provider": provider]
let childUpdates = ["/Users/(key)/": userInfo]
databaseRef.updateChildValues(childUpdates)
Every time I sign in, even with the same credentials a new user is created with the same sign in user. How can I prevent a new instance from being created if a particular user has logged in before.
ios swift xcode firebase firebase-realtime-database
ios swift xcode firebase firebase-realtime-database
edited Nov 16 '18 at 8:19
KENdi
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
edited Nov 16 '18 at 8:19
KENdi
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
edited Nov 16 '18 at 8:19
KENdi
5,8392922
edited Nov 16 '18 at 8:19
KENdi
5,8392922
edited Nov 16 '18 at 8:19
KENdi
5,8392922
5,8392922
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
asked Nov 15 '18 at 23:00
Justin ReddickJustin Reddick
286
286
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
you should use
let childUpdates = ["/Users/(userID)/": userInfo]
and so that the optional does not appear you should put it like this let
key = databaseRef.child("node").childByAutoId().key ?? ""
because the user id does not change when the same user enters, and you are using the autokey for every time the user enters, a new child is created every time
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
add a comment |
You should check if user is already registered or no after signInAndRetrieveData:
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
return
}
if(isNewUser()) {
// create new user in Firebase
}
else {
// continue and skip creating user ..
}
}
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
you should use
let childUpdates = ["/Users/(userID)/": userInfo]
and so that the optional does not appear you should put it like this let
key = databaseRef.child("node").childByAutoId().key ?? ""
because the user id does not change when the same user enters, and you are using the autokey for every time the user enters, a new child is created every time
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
add a comment |
you should use
let childUpdates = ["/Users/(userID)/": userInfo]
and so that the optional does not appear you should put it like this let
key = databaseRef.child("node").childByAutoId().key ?? ""
because the user id does not change when the same user enters, and you are using the autokey for every time the user enters, a new child is created every time
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
add a comment |
you should use
let childUpdates = ["/Users/(userID)/": userInfo]
and so that the optional does not appear you should put it like this let
key = databaseRef.child("node").childByAutoId().key ?? ""
because the user id does not change when the same user enters, and you are using the autokey for every time the user enters, a new child is created every time
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
you should use
let childUpdates = ["/Users/(userID)/": userInfo]
and so that the optional does not appear you should put it like this let
key = databaseRef.child("node").childByAutoId().key ?? ""
because the user id does not change when the same user enters, and you are using the autokey for every time the user enters, a new child is created every time
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
answered Nov 16 '18 at 0:43
daniel fernando muñoz melendezdaniel fernando muñoz melendez
1315
1315
add a comment |
add a comment |
You should check if user is already registered or no after signInAndRetrieveData:
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
return
}
if(isNewUser()) {
// create new user in Firebase
}
else {
// continue and skip creating user ..
}
}
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
add a comment |
You should check if user is already registered or no after signInAndRetrieveData:
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
return
}
if(isNewUser()) {
// create new user in Firebase
}
else {
// continue and skip creating user ..
}
}
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
add a comment |
You should check if user is already registered or no after signInAndRetrieveData:
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
return
}
if(isNewUser()) {
// create new user in Firebase
}
else {
// continue and skip creating user ..
}
}
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
You should check if user is already registered or no after signInAndRetrieveData:
Auth.auth().signInAndRetrieveData(with: credential) { (authResult, error) in
if let error = error {
return
}
if(isNewUser()) {
// create new user in Firebase
}
else {
// continue and skip creating user ..
}
}
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
answered Nov 16 '18 at 2:07
Ibrahim AL-HadiIbrahim AL-Hadi
313
313
add a comment |
add a comment |
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