abort() helper explained

1.php

<?php

abort(
    response()->json(['message' => 'Ooops!.'], 402)
);

2.json

{
    "message": "Ooops!."
}

3.php

<?php

class Handler implements ExceptionHandlerContract
{
    //...


    public function render($request, Exception $e)
    {
        if (method_exists($e, 'render') && $response = $e->render($request)) {
            return Router::toResponse($request, $response);
        } elseif ($e instanceof Responsable) {
            return $e->toResponse($request);
        }

        $e = $this->prepareException($e);

        if ($e instanceof HttpResponseException) {
            return $e->getResponse();
        } elseif ($e instanceof AuthenticationException) {
            return $this->unauthenticated($request, $e);
        } elseif ($e instanceof ValidationException) {
            return $this->convertValidationExceptionToResponse($e, $request);
        }

        return $request->expectsJson()
                        ? $this->prepareJsonResponse($request, $e)
                        : $this->prepareResponse($request, $e);
    }

}

4.php

<?php

if (! function_exists('abort')) {
    /**
     * Throw an HttpException with the given data.
     *
     * @param  \Symfony\Component\HttpFoundation\Response|\Illuminate\Contracts\Support\Responsable|int     $code
     * @param  string  $message
     * @param  array   $headers
     * @return void
     *
     * @throws \Symfony\Component\HttpKernel\Exception\HttpException
     * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException
     */
    function abort($code, $message = '', array $headers = [])
    {
        if ($code instanceof Response) {
            throw new HttpResponseException($code);
        } elseif ($code instanceof Responsable) {
            throw new HttpResponseException($code->toResponse(request()));
        }
        app()->abort($code, $message, $headers);
    }
}