Purpose

Create different authentication for both user and admins using Laravel’s default auth process.

Config

    'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],

        'admin' => [
            'driver' => 'session',
            'provider' => 'admins',
        ],

        'api' => [
            'driver' => 'token',
            'provider' => 'users',
            'hash' => false,
        ],
    ],

    'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => App\User::class,
        ],
        'admins' => [
            'driver' => 'eloquent',
            'model' => App\Models\UserM::class,
        ],

        // 'users' => [
        //     'driver' => 'database',
        //     'table' => 'users',
        // ],
    ],

'guards' => [

'web' => [

'driver' => 'session',

'provider' => 'users',

'admin' => [

'driver' => 'session',

'provider' => 'admins',

'api' => [

'driver' => 'token',

'provider' => 'users',

'hash' => false,

'providers' => [

'users' => [

'driver' => 'eloquent',

'model' => App\User::class,

'admins' => [

'driver' => 'eloquent',

'model' => App\Models\UserM::class,

// 'users' => [

// 'driver' => 'database',

// 'table' => 'users',

// ],

Create a guard “admin” and its “provider”.

Model for the provider

namespace App\Models;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Config;
use Illuminate\Database\Eloquent\Model;

use Illuminate\Notifications\Notifiable;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;

use Carbon\Carbon;

class UserM extends Authenticatable{
	use Notifiable;

    protected $table = 'users';
    static $stable = 'users';

    protected $primaryKey = 'id';
    public $timestamps = false;
    const CREATED_AT = 'created_at';
    const UPDATED_AT = 'updated_at';

	protected $fillable = [
        'name', 'account', 'password',
	];
	
	protected $hidden = [
        'password',
	];
	
	protected $guard = 'admin';
}

namespace App\Models;

use Illuminate\Support\Facades\DB;

use Illuminate\Support\Facades\Config;

use Illuminate\Database\Eloquent\Model;

use Illuminate\Notifications\Notifiable;

use Illuminate\Contracts\Auth\MustVerifyEmail;

use Illuminate\Foundation\Auth\User as Authenticatable;

use Carbon\Carbon;

class UserM extends Authenticatable{

use Notifiable;

protected $table = 'users';

static $stable = 'users';

protected $primaryKey = 'id';

public $timestamps = false;

const CREATED_AT = 'created_at';

const UPDATED_AT = 'updated_at';

protected $fillable = [

'name', 'account', 'password',

];

protected $hidden = [

'password',

];

protected $guard = 'admin';

}

This model has to extend Authenticatable
Config some params.

Login Controller

use Illuminate\Support\Facades\Config;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Foundation\Auth\AuthenticatesUsers;

class MainC extends ParentC
{
    use AuthenticatesUsers;

    protected $redirectTo = '/admin/category';

    public function __construct(){
        parent::__construct();
    }

    protected function guard() {
        return \Auth::guard('admin');
    }

    public function username(){
        return 'account';
    }

    public function login_check(Request $req){
        $account = $req->input('account');
        if($account == false){
            show_alert('Incorrect account', BASE_URL . 'admin/login');
        }

        $password = $req->input('password');
        if($password == false){
            show_alert('Incorrect password', BASE_URL . 'admin/login');
        }
		
        $remember = $req->input('remember');
        if($remember == 'yes'){
            $remember = true;
        }else{
            $remember = false;
        }

        $credentials = [
            'account' => $account, 
            'password' => $password
        ];
        //logg($credentials);
        //logg(Hash::make($password));
        //attemps() will create sessions
        if($this->guard()->attempt($credentials, $remember) == true){
            //logg($this->guard()->check());
            return redirect()->intended('/admin/category');
        }
    }

    public function logout(){
        $this->guard()->logout();
        return redirect()->route('admin.login');
    }
}

use Illuminate\Support\Facades\Config;

use Illuminate\Support\Facades\Auth;

use Illuminate\Support\Facades\Hash;

use Illuminate\Foundation\Auth\AuthenticatesUsers;

class MainC extends ParentC

{

use AuthenticatesUsers;

protected $redirectTo = '/admin/category';

public function __construct(){

parent::__construct();

}

protected function guard() {

return \Auth::guard('admin');

}

public function username(){

return 'account';

}

public function login_check(Request $req){

$account = $req->input('account');

if($account == false){

show_alert('Incorrect account', BASE_URL . 'admin/login');

}

$password = $req->input('password');

if($password == false){

show_alert('Incorrect password', BASE_URL . 'admin/login');

}

$remember = $req->input('remember');

if($remember == 'yes'){

$remember = true;

}else{

$remember = false;

}

$credentials = [

'account' => $account,

'password' => $password

];

//logg($credentials);

//logg(Hash::make($password));

//attemps() will create sessions

if($this->guard()->attempt($credentials, $remember) == true){

//logg($this->guard()->check());

return redirect()->intended('/admin/category');

}

public function logout(){

$this->guard()->logout();

return redirect()->route('admin.login');

}

Middleware

// app\Http\Middleware\Authenticate.php

    protected function redirectTo($request)
    {
        //var_dump($request->getRequestUri());
        //var_dump($request->is('b2b*'));
        
        if (! $request->expectsJson()) {
            //Start without "/"
            if($request->is('b2b') == true || $request->is('b2b/*') == true){
                //Redirect by route name
                return route('b2b_login');

                //Redirect by url
                //return url('/b2b/login');
            }

            return route('login');
        }
    }

// app\Http\Middleware\Authenticate.php

protected function redirectTo($request)

{

//var_dump($request->getRequestUri());

//var_dump($request->is('b2b*'));

if (! $request->expectsJson()) {

//Start without "/"

if($request->is('b2b') == true || $request->is('b2b/*') == true){

//Redirect by route name

return route('b2b_login');

//Redirect by url

//return url('/b2b/login');

}

return route('login');

}

Protection by Route:

Route::group(['prefix'=>'b2b', 'middleware'=>'auth:b2b'], function () {
    Route::get('/', 'B2bMember@index');
});

Route::group(['prefix'=>'b2b', 'middleware'=>'auth:b2b'], function () {

Route::get('/', 'B2bMember@index');

});

Protection by middleware

use Illuminate\Support\Facades\Auth;

class CategoryC extends ParentC
{
    $this->user = null;

    public function __construct(){
        parent::__construct();

        $this->middleware('auth:admin');

        $this->middleware(function ($request, $next) {
            //logg(Auth::user());
            $this->user = Auth::user();
 
            return $next($request);
        });
    }

    public function index(Request $req){
        //Auth::guard('admin')->user() -> works
        //Auth::user() -> works
        
        $data['page_title'] = 'Category';
        
        return view('admin.category.index', $data);
    }
}

use Illuminate\Support\Facades\Auth;

class CategoryC extends ParentC

{

$this->user = null;

public function __construct(){

parent::__construct();

$this->middleware('auth:admin');

$this->middleware(function ($request, $next) {

//logg(Auth::user());

$this->user = Auth::user();

return $next($request);

});

}

public function index(Request $req){

//Auth::guard('admin')->user() -> works

//Auth::user() -> works

$data['page_title'] = 'Category';

return view('admin.category.index', $data);

}

Reference:

Two different authentication example:
https://www.facebook.com/notes/jacky-jou/laravel-%E5%85%A9%E7%A8%AE-user-%E8%BA%AB%E4%BB%BD%E7%9A%84%E7%99%BB%E5%85%A5%E9%A9%97%E8%AD%89/10158637107025444/
Detail explanation of middleware:
https://ithelp.ithome.com.tw/articles/10208371?sc=iThelpR
Great tutorial video for this topic:
https://www.youtube.com/watch?v=iKRLrJXNN4M
https://www.youtube.com/watch?v=Ir2nAD9UDGg
https://www.youtube.com/watch?v=P8T3MjZPDdI

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Laravel Auth Process