createUser({ body }, res) {
auth.createUser({
    email: body.email,
    password: body.password,
    displayName: body.displayName || '',
    photoURL: body.photoURL || DEFAULT_PHOTO_URL,
  })
  .then((userRecord) => {
    console.log('Successfully created new user:', userRecord);
    res.send(userRecord);
  })
  .catch((error) => {
    console.log('Error creating new user:', error);
    res.send(error);
  });
}

createUser(properties: Object): Observable<any> {
const body = JSON.stringify(properties);
const url = 'api/user';
const headers = new Headers({ 'Content-Type': 'application/json' });
const options = new RequestOptions({ headers: headers });
return this.http
  .post(url, body, options)
  .map((res: Response) => res.json())
  .catch((error: any) => Observable.throw(error.json()));
}

registerWithEmailAndPassword(): void {
const properties = {
  'displayName': this.registerForm.get('firstname').value.toString() + ' ' + this.registerForm.get('lastname').value.toString(),
  'email': this.registerForm.get('email').value.toString(),
  'password': this.registerForm.get('password').value.toString()
};
this.authService.createUser(properties).subscribe(
  res => {
    console.log('res: ', res);
  }, error => {
    console.error('error: ', error);
  }
);
}