Creating new user with firebase in Swift - ios

Question

I am new to Firebase and have been trying to implement a "Sign Up" page for my app. Currently, I am only using the email feature, just to test things out. I am able to create the new user and store it in the "Login & Auth" tab in the dashboard, but for what ever reason I cannot retrieve the UID. The only way is if I close out of my app and reload it, then it can access the UID. Any suggestions on why this is?

Answer 1

Swift 4.1 FireBase User Create/Login Steps:-
STEP 1:- Register new firebase authentication Pod in to your Podfile :
pod 'Firebase/Auth'
STEP 2:- Open terminal and install pod with your related project directory path:
pod install
STEP 3:- import firebase authentication library in your UIViewController where ever you want:
import FirebaseAuth
STEP 4:- On your Registration UIButton Action write this snippet :
Auth.auth().createUser(withEmail: (txtEmail.text ?? ""), password: (txtPass.text ?? "")) { (result, error) in
if let _eror = error {
//something bad happning
print(_eror.localizedDescription )
}else{
//user registered successfully
print(result)
}
}
STEP 5:- If you want to Sign In after Registration use this snippet on your Sign in UIButton:
Auth.auth().signIn(withEmail: (txtEmail.text ?? ""), password: (txtPass.text ?? "")) { (result, error) in
if let _eror = error{
print(_eror.localizedDescription)
}else{
if let _res = result{
print(_res)
}
}
}
Happy Codding ;)!!!!

Answer 2

Example of how to create users:
Auth.auth().createUser(withEmail: email, password: password, completion: { (result, error) -> Void in
if (error == nil) {
UserDefaults.standardUserDefaults().setValue(result.uid, forKey: "uid")
print("Account created :)")
let userDict = ["Name": name!, "Major": major!, "Email": email!]
let uid = result!.uid
self.dismissViewControllerAnimated(true, completion: nil)
}
else{
print(error)
}
})
Hope this helps.

Answer 3

Creating user in Firebase is very easy, just add firebase to your project using cocoa pods and then create a signup screen. You need email and password. Now first import Firebase
import Firebase
Then inside on viewDidLoad() method configure firebase
FIRApp.configure()
Now get email and password from textfields and use the following code for registration.
FIRAuth.auth()?.createUserWithEmail(email!, password: password!, completion: { (user: FIRUser?, error) in
if error == nil {
//registration successful
}else{
//registration failure
}
})
Thats it.
Source: Firebase Swift Tutorial

Answer 4

Before you try any code, make sure your password is at least 6 characters long. Print the error if is possible, I would print the error on each function. sign up and sign in just to keep track of what you are doing.
#IBAction func signUp(_ sender: Any) {
Auth.auth().createUser(withEmail: self.usernameTextField.text!, password: self.passwordTextField.text!) {(user, error) in
if user != nil {
print("User Has SignUp")
}
if error != nil {
print(":(",error)
}
}
Auth.auth().signIn(withEmail: self.usernameTextField.text!, password: self.passwordTextField.text!) {(user, error) in
if user != nil {
print("User Has Sign In")
}
if error != nil {
print(":(",error)
}
}