I'm having a bit of trouble adding users to Firebase. If anyone could help me out with this, it would be significantly appreciated.
Here is my code:
var myRootRef = Firebase(url:"https://plattrapp.firebaseio.com/users")
myRootRef.createUser(emailSignUpEntered, password: passwordSignUpEntered,
withValueCompletionBlock: { error, result in
if error != nil {
// There was an error creating the account
} else {
let uid = result["uid"] as? String
println("Successfully created user account with uid: \(uid)")
}
})
It does display in the println statement within my debugger that a user has been created, but doesn't actually display within my firebase database.
Anything I may be doing wrong?
Firebase Authentication does not automatically create any information about the user in the associated database.
Most applications end up creating this information from their own code under a top-level users node. This is covered in the section called "Storing User Data" in the Firebase programming guide for iOS.
It is in general a good idea to read the Firebase documentation on the topic that you are working on. It will prevent a lot of grey/lost hair and wasted time.
Related
so I'm working these days on a new project and I have a problem I can't solve, I hope someone can help me.
I'm working on an iOS app, I'm storing all user data on Firebase Real time dB.
My main goal is to get specific data from all users from particular positions,
For example:
Inside users, I have different UIDs of all the users in the dB.
In each one of them, there is a username, I would like to retrieve the username of each user.
In the future, I would like to store the location for each user under "Location". and then I would like to get all users that their location is "New-York".
I'll be glad to get some ideas on how to figure it out!
Thanks!
users
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username: "Donald"
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username: "Barak"
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username: "Abdul"
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username: "Ron"
You can:
Load all JSON from /Users.
Loop over snapshot.children.
Then get the value of each child's username property.
These are also the most common navigation tactics when it comes to Firebase Realtime Database, so you'll apply these to pretty much any read operation.
Something like this:
Database.database().reference().child("isers").observe(.value, with: { (snapshot) in
if !snapshot.exists() {
print("No users found")
} else {
for case let userSnapshot as DataSnapshot in snapshot.children {
guard let dict = userSnapshot.value as? [String:Any] else {
print("Error")
return
}
let username = dict["username"] as? String
print(username)
}
}
})
Also see:
the documentation on reading data.
the documentation on listening for lists of data with a value event.
How to properly use queryOrderedByValue
Get Children of Children in Firebase Using Swift
And more from searching on [firebase-realtime-database][swift] children.
I am setting up a social media app and currently working on a way to create authentic usernames(no duplicates) for the user to enter, similar to that of Instagram.
The problem that I'm facing is that I can't find a way to delete the users previous username(in case anyone else wants to use it). The way that my database is setup for usernames is like:
Usernames
- username:"testUsername"
I have attempted to delete the code using this
let usernameRef = FIRDatabase.database().reference().child("Usernames").child("username").child(usersCurrentUsername)
usernameRef.removeValue(completionBlock: {(error, ref) in
if error != nil {
print("There was an error in removing the current username\(error?.localizedDescription)")
} else {
print(ref)
print("The child was removed")
}
})
I capture the users current username via snapshot in the viewdidload and store it in usersCurrentUsername.
Any help would be appreciated
let usernameRef = FIRDatabase.database().reference().child("Usernames").child("username");
usernameRef.removeValue();
Note that if the child of Usernames is only the username, the Usernames node will also be deleted.
I'm building an iOS App that is using Amazon MobileHub. Currently it's associated with Cognito and the sign up and sign in flow works great.
What I'm trying to achieve is for one user to be able to add another user as a friend so to speak. To make that possible, I need to check if a user with a specific username exists and if it does, get some attributes such as the name of that target user.
I've tried to use the get user > get details function but it gives me an error Authentication delegate not set.
Here's the code I used:
var pool: AWSCognitoIdentityUserPool?
let user = pool?.getUser(usernameField.text!)
self.pool = AWSCognitoIdentityUserPool.init(forKey: AWSCognitoUserPoolsSignInProviderKey)
user?.getDetails().continueWith { (task: AWSTask<AWSCognitoIdentityUserGetDetailsResponse>) -> Any? in
if let error = task.error as NSError? {
print("ERROR: " + error.localizedDescription)
return ""
}
print(task.result)
return ""
}
An approach I thought of was to store the username and the attributes I want to access to DynamoDB and then access it there but that will just create double unnecessary entries.
The issue you'll run into is that user attributes aren't publicly visible. Only the user who has signed in can call GetUser. If it's a back end process, you could do this via the AdminGetUser operation, but this looks client side so I wouldn't recommend that. The only real way around this would be to do what you suggested at the bottom of your post, ultimately.
I am building a project with Firebase that involves users. There is a known Firebase bug where even after a user has been deleted from the Firebase Authentication section, the user is still able to access the app and still has read/write permissions to the database. I believe it has something to do with the token being stored by Firebase on the user's device.
As a work around to this, I have implemented a "user checkup" where my app will check to see if the userID of the logged in user exists in my real-time database. This way all i have to do is delete the userID node from the real-time database and that will cause this checkup to fail and thus log the user out permanently.
The problem i am having is that the call to observeSingleEvent(of: .value...) is sporadically not returning. By this i mean that sometimes it returns immediately as is expected, however sometimes it just doesn't return at all. For example yesterday morning it wasn't working at all. Yesterday afternoon and night it worked fine. Now today it is no longer working again. Code below...
func checkDatabaseForFIRUser(withId: String, callback: #escaping (Bool)-> Void) {
let fireUsersRef = fireRootRef.child("all-users").child(withId)
fireUsersRef.observeSingleEvent(of: .value, with: {(snapshot)-> Void in
print("user check result -> \(snapshot)")
if snapshot.exists() {
print("SNAP EXISTS")
callback(true)
} else {
print("SNAP NOT EXISTS")
callback(false)
}
}, withCancel: {(error)-> Void in
print("CANCEL BLOCK ERROR = \(error) and localized description = \(error.localizedDescription)")
})
}
I have also noticed that during the times when I am unable to retrieve data I am also unable to write anything to the database, it is as if nothing at all works. My Firebase Rules have been set to "Public" so anyone can read/write. And I have a working internet connection on my device
EDIT: everything works fine on Simulator. Issue is only occurring on the actual device
EDIT #2: This issue seems to have subsided, I haven't noticed it for at least a few weeks now
I bet that by the time you are calling observeSingleEvent, you are log out, so probably that's why it is not returning anything.
By following the information on this link, I am currently working on trying to create a user using Firebase, as shown in the code below. However, it appears no user is created when the app is run. Any input is greatly appreciated. The Firebase URL was taken from my test database.
let ref = Firebase(url: "https://test-96df2.firebaseio.com")
ref.createUser("bobtony#example.com", password: "correcthorsebatterystaple",
withValueCompletionBlock: { error, result in
if error != nil {
// There was an error creating the account
print("error creating account")
} else {
let uid = result["uid"] as? String
print("Successfully created user account with uid: \(uid)")
}
})
Edit:
The propagated error is:
Error Code: AUTHENTICATION_DISABLED) Projects created at
console.firebase.google.com must use the new Firebase Authentication
SDKs available from firebase.google.com/docs/auth/
However, as shown below, the email/password authentication is enabled in the Firebase console.
You have already authorized the email registration as I can see in your screenshot. So the problem doesnt realies on AUTHENTICATION_DISABLED.
From your error message and the snippet code I can see that you have created a new project but you are trying to use the legacy firebase SDK and so you will have compatibility issues. Also, you are looking into the old firebase documentation.
First of all you will need to make sure you have configured your project as documented in new firebase start guide.
After, you can take a look at the documentation for creating a new user with the new sdk. You can find the 3.x create user call bellow.
FIRAuth.auth()?.createUserWithEmail(email, password: password) { (user, error) in
// ...
}