Laravel Auth with SMS OTP (no email)

You may use the default Laravel login/registration logic using phone number instead of email, with SMS one-time passwords.

For this example, the authentication system uses phone numbers and SMS OTPs via Vonage.

The User Model is updated to store phone and OTP-related fields:

app/Models/User.php:

use Illuminate\Notifications\Notification;
 
class User extends Authenticatable
{
    protected $fillable = [
        'name',
        'phone',
        'password',
        'verified_at',
        'otp_code',
        'otp_expires_at',
    ];
 
    protected $hidden = [
        'password',
        'remember_token',
        'otp_code',
    ];
 
    protected function casts(): array
    {
        return [
            'verified_at' => 'datetime',
            'otp_expires_at' => 'datetime',
            'password' => 'hashed',
        ];
    }
 
    public function routeNotificationForVonage(Notification $notification): string
    {
        return $this->phone;
    }
}

---

Registration Flow

• User submits name, phone, and password
• Input is validated (using PhoneNumber rule)
• User is created
• OTP is generated and saved to otp_code and otp_expires_at
• OTP is sent via Vonage SMS
• User is logged in and redirected to phone verification page

app/Http/Controllers/Auth/RegisteredUserController.php:

use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;
use Illuminate\Support\Facades\URL;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Http\RedirectResponse;
use Illuminate\Validation\Rules\Password;
use App\Notifications\SendOtpNotification;
 
class RegisteredUserController extends Controller
{
    // ...
 
    public function store(Request $request): RedirectResponse
    {
        $request->validate([
            'name'       => ['required', 'string', 'max:255'],
            'phone_full' => ['required', 'numeric', Rule::unique('users', 'phone')],
            'password'   => ['required', 'confirmed', Password::defaults()],
        ]);
 
        $user = User::create([
            'name'     => $request->name,
            'phone'    => $request->phone_full,
            'password' => Hash::make($request->password),
        ]);
 
        $otp = rand(100000, 999999);
 
        $user->update([
            'otp_code'       => $otp,
            'otp_expires_at' => now()->addMinutes(10),
        ]);
 
        $user->notify(new SendOtpNotification($otp));
 
        Auth::login($user);
 
        return redirect(URL::signedRoute('verification.notice'));
    }
}

The notification class for...

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