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In this post, I will show you how to login with email or username with laravel jetstream authentication.

Sometimes, we may need to let users log in using either their email or username. How can you do this this if you've implemented the Laravel jetstream authentication scaffold?

I'll walk you through a simple solution that allows users to log in with either their email or username.

we simply go to FortifyServiceProvider.php provider file and overwrite authenticateUsing() method with the following code:

App/Providers/FortifyServiceProvider.php

<?php

namespace App\Providers;

use App\Actions\Fortify\CreateNewUser;
use App\Actions\Fortify\ResetUserPassword;
use App\Actions\Fortify\UpdateUserPassword;
use App\Actions\Fortify\UpdateUserProfileInformation;
use Illuminate\Cache\RateLimiting\Limit;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\RateLimiter;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Str;
use Laravel\Fortify\Fortify;
use App\Models\User;
use Hash;

class FortifyServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     */
    public function register(): void
    {
        //
    }

    /**
     * Bootstrap any application services.
     */
    public function boot(): void
    {
        Fortify::createUsersUsing(CreateNewUser::class);
        Fortify::updateUserProfileInformationUsing(UpdateUserProfileInformation::class);
        Fortify::updateUserPasswordsUsing(UpdateUserPassword::class);
        Fortify::resetUserPasswordsUsing(ResetUserPassword::class);

        Fortify::authenticateUsing(function (Request $request) {
            $user = User::where('email', $request->login)
                ->orWhere('username', $request->login)
                ->first();
     
            if ($user &
                Hash::check($request->password, $user->password)) {
                return $user;
            }
        });

        RateLimiter::for('login', function (Request $request) {
            $throttleKey = Str::transliterate(Str::lower($request->input(Fortify::username())).'|'.$request->ip());

            return Limit::perMinute(5)->by($throttleKey);
        });

        RateLimiter::for('two-factor', function (Request $request) {
            return Limit::perMinute(5)->by($request->session()->get('login.id'));
        });
    }
}

You can also see the following video:

You can see the output:

I hope it can help you...