Auth

Using the Auth service, we can easily authenticate a user against various social services. Not only social services such as Google, Twitter, and LinkedIn, we can also set up a simple e-mail and password authentication as well. You can view a list of authentication providers here: http://docs.ionic.io/services/auth/#authentication-providers.
And using the Auth service, this is how we manage authentication:

import { Auth, UserDetails, IDetailedError } from '@ionic/cloud-angular'; 

@Component({ 
   selector : 'auth-page' 
}) 
export class AuthPage { 
   private testUser: UserDetails = { 'email': '[e-mail]', 'password': 'password' }; 

    // construct 
    constructor( 
        private auth: Auth, 
        private user: User) {} 

    signup() { 
        this.auth.signup(testUser).then(() => { 
            // testUser is now registered 
            console...