mobilebackendgateway/app/Exceptions/Handler.php

<?php

namespace App\Exceptions;

use App\Traits\ApiResponser;
use GuzzleHttp\Exception\ClientException;
use GuzzleHttp\Exception\ServerException;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Auth\AuthenticationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Http\Response;
use Illuminate\Validation\ValidationException;
use Laravel\Lumen\Exceptions\Handler as ExceptionHandler;
use League\OAuth2\Server\Exception\OAuthServerException;
use Symfony\Component\HttpFoundation\Response as ResponseAlias;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Throwable;

class Handler extends ExceptionHandler
{
    use ApiResponser;
    /**
     * A list of the exception types that should not be reported.
     *
     * @var array
     */
    protected $dontReport = [
        AuthorizationException::class,
        HttpException::class,
        ModelNotFoundException::class,
        ValidationException::class,
    ];

    /**
     * Report or log an exception.
     *
     * This is a great spot to send exceptions to Sentry, Bugsnag, etc.
     *
     * @param  \Throwable  $exception
     * @return void
     *
     * @throws \Exception
     */
    public function report(Throwable $exception)
    {
        parent::report($exception);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Throwable  $exception
     * @return \Symfony\Component\HttpFoundation\Response
     *
     * @throws \Throwable
     */
    public function render($request, Throwable $exception)
    {
//        return parent::render($request, $exception);
        if ($exception instanceof  HttpException)
        {
            $code = $exception->getStatusCode();
            $message = Response::$statusTexts[$code];

            return  $this->errorResponse($message,$code);
        }

        if($exception instanceof ModelNotFoundException)
        {
            $model = strtolower(class_basename($exception->getModel()));

            return $this->errorResponse(trans('errors.model_not_found',['model'=>$model]),
                ResponseAlias::HTTP_NOT_FOUND);
        }

        if($exception instanceof AuthorizationException)
        {
            return  $this->errorResponse($exception->getMessage(),Response::HTTP_UNAUTHORIZED);
        }

        if($exception instanceof ValidationException)
        {
            $errors = $exception->validator->errors()->getMessages();

            return $this->errorResponse($errors, ResponseAlias::HTTP_UNPROCESSABLE_ENTITY);
        }

        if ( $exception instanceof ClientException)
        {
            $message = $exception->getResponse()->getBody()->getContents();
            $error  =json_decode($message) ;
            $code = $exception->getCode();

            if($error)
                return $this->errorResponse($error->error,$code);
            else
                return $this->errorResponse($message,$code);
        }

        if($exception instanceof AuthenticationException)
        {
            return  $this->errorResponse($exception->getMessage(), ResponseAlias::HTTP_UNAUTHORIZED);
        }

        if ($exception instanceof OAuthServerException)
        {
            return $this->errorResponse($exception->getMessage(), ResponseAlias::HTTP_INTERNAL_SERVER_ERROR);
        }

        if ($exception instanceof ServerException)
        {
            $errorBody = $exception->getResponse()->getBody()->getContents();
            $error = json_decode($errorBody);
            $message = $error?->error ?? $exception->getMessage();
            $code =  $error?->status ?? ResponseAlias::HTTP_INTERNAL_SERVER_ERROR;
            return $this->errorResponse($message,$code);
        }

        if( env('APP_DEBUG', false))
        {
            return parent::render($request,$exception);
        }

        return $this->errorResponse(trans('errors.unexpected_error'),
            Response::HTTP_INTERNAL_SERVER_ERROR);
    }
}