I have used Parse for several projects and It’s reasonably priced. This simple example is about using the PFUser object to sign up a new user to your application.
I will assume you have the Parse IOS Swift SDK installed in your new Xcode project.
1. Make sure you have your provided API Keys setup in the AppDelegate.swift
import Parse @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { // Override point for customization after application launch. Parse.setApplicationId("API Key", clientKey: "Client Key") return true } ..
2. In our ViewController.swift we will create some @IBOutlets to some text fields.
@IBOutlet weak var usernameField: UITextField! @IBOutlet weak var emailField: UITextField! @IBOutlet weak var passwordField: UITextField!
3. We will create an @IBAction that links to a button
@IBAction func signUpBtn(sender: UIButton) {
// Check to make sure the username field is not empty
guard let username = self.usernameField.text where username != "" else{
print("Username is required") // Print error for now
return
}
// Check to make sure the email field is not empty
guard let email = emailField.text where email != "" else{
print("Email is required") // Print error for now
return
}
// Check to make sure the password field is not empty
guard let password = passwordField.text where password != "" else{
print("Password is required")// Print error for now
return
}
// If all fields contain values then we call the method below and pass in those values.
signUpWith(username, email: email, password: password)
}4. The signUpWith(username, email, password) method
func signUpWith(username: String, email: String, password: String){ let newUser = PFUser() newUser.password = password newUser.email = email newUser.username = username newUser.signUpInBackgroundWithBlock { (success: Bool, serviceError: NSError?) -> Void in if let error = serviceError { // If there was an error, it will be assigned to the [error] constant. print("Please try again") } else { if success{ // If the signup is successful it will return a Bool value, which we assign to [success] print("New user is signed up! Yay!") } } } }
If all goes well, then you would see a new user in your Parse dashboard for the User class.