Laravel8 implements interface authentication encapsulation using JWT

1. download composer Dependency package

composer require firebase/php-jwt

2. stay App New under file Server Folder , newly build JwtServer class

<?php
 
 
namespace App\Server;
use Firebase\JWT\JWT;
use Firebase\JWT\Key;
 
class JwtServer
{
    public static function createToken($userId)
    {
        $key = "example_key";
        $payload = array(
            "iss" => "http://example.org",
            "aud" => "http://example.com",
            "iat" => 1356999524,
            "nbf" => 1357000000,
            'user_id'=>$userId
        );
        $jwt = JWT::encode($payload, $key, 'HS256');
        return $jwt;
    }
    public static function decodeToken($jwt){
        $key = "example_key";
        $decoded = JWT::decode($jwt, new Key($key, 'HS256'));
        if ($decoded){
            return $decoded;
        }else{
            return  false;
        }
    }


}

3. Create middleware

php artisan make:middleware CheckApiLogin

 4. Write... In the middleware , take token Put in header Transmission of

    public function handle(Request $request, Closure $next)
    {
        // take token Put in header Transmission of 
        $token=$request->header('token');
        if (!$token){
            return response()->json(['code'=>500,'msg'=>'token non-existent ','data'=>[]]);
        }
        $userId=JwtServer::decodeToken($token);
        if ($userId){
            // Encrypt id Decrypt incoming next step 
            $request->attributes->add(['user_id'=>$userId->user_id]);
        }else{
            return response()->json(['code'=>500,'msg'=>'token Be overdue ','data'=>[]]);
        }
        return $next($request);
    }

5. Register middleware

'checkApiLogin' => \App\Http\Middleware\CheckApiLogin::class

6. Use middleware in routing

Route::group(['middleware'=>'checkApiLogin'],function (){
    
    
});


// Generate token
Route::get('createtoken',[Token::class,'createtoken']);
// obtain token Medium userId
Route::get('decodeToken',[Token::class,'decodeToken']);

Route::group(['middleware'=>'checkApiLogin'],function (){

    Route::get('Token',[Token::class,'Token']);
    
});

7. To test

// Generate token
    public function createtoken(){
        $userId = request()->get('userId');
        $token = JwtServer::createToken($userId);
        Redis::setex('token',120,$token);
        dd($token);
    }

    // obtain id
    public function decodeToken()
    {
        $token = Redis::get('token');
        $userId = JwtServer::decodeToken($token);
        $userId = json_decode(json_encode($userId),true);
        dd($userId['user_id']);
    }

    public function Token(){
        dd(' I only have a rose in my pocket , This trip is high and far away .');
    }