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Implementing mail send on errors

We have a web application used by several clients, and it would be useful if, upon specific errors happening in production environments (I was thinking errors of type critical, alert o emergency, if possible), the system would send us developers a quick email to let us know, and also retain the current behavior of showing an error page. I started by trying a custom exception exception handler (app/Libraries/CustomExceptionHandler.php)

PHP Code:

namespace App\Libraries;


* Extends BaseExceptionHandler to send mail in case of serious app errors
* @package App\Libraries
class CustomExceptionHandler extends BaseExceptionHandler implements ExceptionHandlerInterface
    public ?string $viewPath APPPATH 'Views/errors';

    public function handle(
        Throwable $exception,
        RequestInterface $request,
        ResponseInterface $response,
        int $statusCode,
        int $exitCode
): void {
        log_message('error'"handling an exception of statusCode $statusCode. ".$exception->getMessage());
        // TODO actually implement sending an email.


and I configured app/Config/Exceptions.php like
PHP Code:
public function handler(int $statusCodeThrowable $exception): ExceptionHandlerInterface
        if (in_array($statusCode, [400404500], true)) {
            return new \App\Libraries\CustomExceptionHandler($this);

        if ($exception instanceof PageNotFoundException) {
            return new \App\Libraries\CustomExceptionHandler($this);

        return new ExceptionHandler($this);

With, thus far, just an extra log_message or two to see that it was working. It does work, but what I see in the browser is not the normal exception trace for development or the error page for production, but an error "The error view files were not found. Cannot render exception trace."
What am I missing? I tried leaving $viewPath as null or removing it from my custom class, but the error message about view files remains.
Then I also read that I could add a custom Logger to send mail in the cases I need. What would be the best thing to do in my case?
Best regards,

Messages In This Thread
Implementing mail send on errors - by adrianovaroli - 04-11-2024, 12:22 PM
RE: Implementing mail send on errors - by kenjis - 04-11-2024, 05:15 PM

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