PHP: Exception Handling for Slim Framework

Question

I just finished creating an API application with slim framework, initially in my code I use a dependency container to handle all exceptions, the code is below.

//Add container to handle all exceptions/errors, fail safe and return json
$container['errorHandler'] = function ($container) {
    return function ($request, $response, $exception) use ($container) {
        //Format of exception to return
        $data = [
            'message' => $exception->getMessage()
        ];
        return $container->get('response')->withStatus(500)
            ->withHeader('Content-Type', 'application/json')
            ->write(json_encode($data));
    };
};

But instead of throwing 500 Server Errorall the time, I would like to add another HTTPS response code. I wonder if I can get help on how to do this.

public static function decodeToken($token)
{
    $token = trim($token);
    //Check to ensure token is not empty or invalid
    if ($token === '' || $token === null || empty($token)) {
        throw new JWTException('Invalid Token');
    }
    //Remove Bearer if present
    $token = trim(str_replace('Bearer ', '', $token));

    //Decode token
    $token = JWT::decode($token, getenv('SECRET_KEY'), array('HS256'));

    //Ensure JIT is present
    if ($token->jit == null || $token->jit == "") {
        throw new JWTException('Invalid Token');
    }

    //Ensure User Id is present
    if ($token->data->uid == null || $token->data->uid == "") {
        throw new JWTException("Invalid Token");
    }
    return $token;
}

The problem is even more from such functions as above, since the slim framework decides to handle all exceptions implicitly, I do not have access to use try catchto catch any errors

Answer 1

Not so complicated, it's simple. Rewrite the code:

container['errorHandler'] = function ($container) {
    return function ($request, $response, $exception) use ($container) {
        //Format of exception to return
        $data = [
            'message' => $exception->getMessage()
        ];
        return $container->get('response')->withStatus($response->getStatus())
            ->withHeader('Content-Type', 'application/json')
            ->write(json_encode($data));
    };
}

, ? $response, , , , $response withStatus().

.

Answer 2

withJson() Slim\Http\Response Object

class CustomExceptionHandler
{

    public function __invoke(Request $request, Response $response, Exception $exception)
    {
        $errors['errors'] = $exception->getMessage();
        $errors['responseCode'] = 500;

        return $response
            ->withStatus(500)
            ->withJson($errors);
    }
}

,

$container = $app->getContainer();

//error handler
$container['errorHandler'] = function (Container $c) {
  return new CustomExceptionHandler();
};