<?php

namespace Laravel\Passport\Http\Middleware;

use Closure;
use Laravel\Passport\Exceptions\AuthenticationException;
use Laravel\Passport\TokenRepository;
use League\OAuth2\Server\Exception\OAuthServerException;
use League\OAuth2\Server\ResourceServer;
use Nyholm\Psr7\Factory\Psr17Factory;
use Symfony\Bridge\PsrHttpMessage\Factory\PsrHttpFactory;

abstract class CheckCredentials
{
    /**
     * The Resource Server instance.
     *
     * @var \League\OAuth2\Server\ResourceServer
     */
    protected $server;

    /**
     * Token Repository.
     *
     * @var \Laravel\Passport\TokenRepository
     */
    protected $repository;

    /**
     * Create a new middleware instance.
     *
     * @param  \League\OAuth2\Server\ResourceServer  $server
     * @param  \Laravel\Passport\TokenRepository  $repository
     * @return void
     */
    public function __construct(ResourceServer $server, TokenRepository $repository)
    {
        $this->server = $server;
        $this->repository = $repository;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  mixed  ...$scopes
     * @return mixed
     *
     * @throws \Laravel\Passport\Exceptions\AuthenticationException
     */
    public function handle($request, Closure $next, ...$scopes)
    {
        $psr = (new PsrHttpFactory(
            new Psr17Factory,
            new Psr17Factory,
            new Psr17Factory,
            new Psr17Factory
        ))->createRequest($request);

        try {
            $psr = $this->server->validateAuthenticatedRequest($psr);
        } catch (OAuthServerException $e) {
            throw new AuthenticationException;
        }

        $this->validate($psr, $scopes);

        return $next($request);
    }

    /**
     * Validate the scopes and token on the incoming request.
     *
     * @param  \Psr\Http\Message\ServerRequestInterface  $psr
     * @param  array  $scopes
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\MissingScopeException|\Illuminate\Auth\AuthenticationException
     */
    protected function validate($psr, $scopes)
    {
        $token = $this->repository->find($psr->getAttribute('oauth_access_token_id'));

        $this->validateCredentials($token);

        $this->validateScopes($token, $scopes);
    }

    /**
     * Validate token credentials.
     *
     * @param  \Laravel\Passport\Token  $token
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\AuthenticationException
     */
    abstract protected function validateCredentials($token);

    /**
     * Validate token scopes.
     *
     * @param  \Laravel\Passport\Token  $token
     * @param  array  $scopes
     * @return void
     *
     * @throws \Laravel\Passport\Exceptions\MissingScopeException
     */
    abstract protected function validateScopes($token, $scopes);
}

• [F] CheckClientCredentials.php
  Delete
• [F] CheckClientCredentialsForAnyScope.php
  Delete
• [F] CheckCredentials.php
  Delete
• [F] CheckForAnyScope.php
  Delete
• [F] CheckScopes.php
  Delete
• [F] CreateFreshApiToken.php
  Delete

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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}