How do I check for "permission_denied" in my swift code?! so that I can display a proper alert to user?
self.ref = Database.database().reference(withPath: "PlayerBoxes")
//
handle = ref.child(pID).observe(.value, with: { snapshot in
// Do Something
}) { (error) in
print(error.localizedDescription)
}
// Update info into Firebase, do not overwrite entire node
ref.child(self.pID).updateChildValues(sqr.toDictionary()) <-- Permission Denied
You need to use updateChildValues(withCompletionBlock:) instead.
This returns a database reference along with any raised error.
ref.child(self.pID).updateChildValues(sqr.toDictionary()) { (error, reference) in
if error != nil
{
// handle the error
print(error!.localizedDescription)
}
// you're fine, no error raised
}
Related
when i run the following code i get this error.
['FIRESTORE INTERNAL ASSERTION FAILED: Invalid document reference. Document references must have an even number of segments, but User has 1']
func saveLabel(uid: String, label: String){
let userRef = db.collection("User").document(uid)
userRef.updateData(["label": label]) { (error) in
if error == nil {
print("updated")
}else{
print("not updated")
}
}
}
This error almost certainly means that uid is empty. You should log it to make sure.
In my iOS/Swift/Firebase app, I am trying to access the "isNewUser" parameter after a user successfully signs in via email/password so that I can pop a window to compel them to reset their password from the temporary one initially assigned upon user creation.
Any insights would be appreciated. Thanks.
The .isNewUser Bool is available from the FirebaseAuth AdditionalUserInfo class.
Here is the link. In order to utilize this code, please see a demo sign in function I wrote below.
Auth.auth().signIn(with: credential) { (result, error) in
if let error = error {
print("Error: \(error)");
return;
}
// Fetch the user's info
guard let uid = result?.user.uid else {return}
// Safely unwrap the boolean value rather than forcing it with "!" which could crash your app if a nil value is found
guard let newUserStatus = result?.additionalUserInfo?.isNewUser else {return}
// Test the value
print("\nIs new user? \(newUserStatus)\n")
if newUserStatus == true {
// Provide your alert prompt
}
else{
// Transition view to continue into the app
}
}
guard let uid = user?.uid else {return}
let usernameValue = ["username":username]
let value = [uid: usernameValue]
Database.database().reference().child("user").updateChildValues(value, withCompletionBlock: { (err, ref) in
if let err = err{
print("failed to save user in db:", err)
}else{
print("successfully Work")
}
})
This is the error I am facing:
failed to save user in db: Error Domain=com.firebase Code=1 "Permission denied" UserInfo={NSLocalizedDescription=Permission denied}
You do not have the permission to manage the /user path in the database.
Check your Firebase security rules.
Allow unauthenticated access to your database.
Go into the Database panel in the console for you project, select the Rules tab and replace the contents with these rules:
{
"rules": {
".read": true,
".write": true
}
}
This makes your new database readable and writeable by everyone.
One more trick to avoid this problem call one of the signIn...methods of Firebase Authentication to ensure the user is signed in before accessing the database.
Not sure if this a bug or an intended feature.
To create a user with an email and password in Firebase, I've been using the following code:
FIRAuth.auth()?.signIn(withEmail: email, password: password) { (user, error) in
if let error = error {
guard let error = error as? FIRAuthErrorCode else { return } // ALWAYS FAILS
...code...
}
...code...
}
The error parameter in the completion handler for the method cannot be cast as FIRAuthErrorCode; it always fails. Is that a bug, or is that the expected behaviour?
Edit: I am aware that error codes can be used to distinguish between the different types of FIRAuthErrorCode errors. It's just not readable, and it doesn't make much sense for the error parameter in the completion handler to be not of be of type FIRAuthErrorCode. The cases and error codes of FIRAuthErrorCode can be found here.
Have you tried using guard let error = error as! FIRAuthErrorCode else { return } to force the casting and check whether the return is nil or not?
After contacting Firebase support about the issue, they've said that the errors that are passed back in completion handlers are just Error objects. They weren't FIRAuthErrorCode objects. To test for the various FIRAuthErrorCode cases, one would have to do something like this:
FIRAuth.auth()?.signIn(withEmail: email, password: password) { (user, error) in
if let error = error {
guard let error = FIRAuthErrorCode(rawValue: error._code) else {
fatalError("This should never be executed")
}
switch error {
case .errorCodeInvalidEmail: ...
case .errorCodeWrongPassword: ...
default: ...
}
...code...
}
...code...
}
^ This preserves readability and makes error handling more intuitive. And, there is no need for error casting!
You should check the documentation of signIn method in firebase in order to check the all possible type of error this method can send and then check those type of errors in guard block in your code.
Try this, it's how I do my login and it seems to work great.
FIRAuth.auth()?.signIn(withEmail: EmailField.text!, password: PasswordField.text!, completion: { user, error in
if error == nil {
print("Successfully Logged IN \(user!)")
self.performSegue(withIdentifier: "Login", sender: self)
}
})
I just check that there's not an error with the signin process, then perform my segue.
I can fetch the userRecordID, but I get an error whenever I try to fetch the record associated with that ID. Any suggestions? Code and error below:
myContainer.fetchUserRecordID { (thisID, thisError) in
if let userError = thisError {
print("DEBUG: error getting user id; \(userError)")
} else {
if let userID = thisID {
self.publicDatabase.fetch(withRecordID: userID, completionHandler: { (fetchedUser, fetchedError) in
if let thisError = fetchedError {
print("DEBUG: error getting user record; \(thisError)")
}
DEBUG: error getting user record; <CKError 0x174045010: "Internal Error" (1/5001); "Couldn't get a PCS object to unwrap encrypted data for field encryptedPublicSharingKey: (null)">
Error in the code, or my fault for trying beta software (iOS 10, Swift 3 & xCode-beta 8.0 beta 2 (8S162m)
From your example it is not clear if self.publicDatabase is equal to myContainer.publicCloudDatabase.
Make sure you fetch it from the same container's database, otherwise it will obviously not work.
myContainer.fetchUserRecordID { userID, error in
guard error == nil else {
print("DEBUG: error getting user id; \(userError)")
return
}
guard let userRecID = userID else {
print("DEBUG: Can't unwrap userID")
return
}
myContainer.publicCloudDatabase.fetch(withRecordID: userRecID, completionHandler: { (fetchedUser, fetchedError) in
//handle the error and the user
print("DEBUG: User fetch FINISHED!", fetchedUser)
})
}
I needed to change from publicDatabase to privateDatabase.
self.publicDatabase.fetch(withRecordID: userID, completionHandler: { (fetchedUser, fetchedError) in
to
self.privateDatabase.fetch(withRecordID: userID, completionHandler: { (fetchedUser, fetchedError) in