Obtaining validation failure errors in a form request

I have a client that's getting a 422 response from a form request validation failure. The client is remote and I can't see the response body they receive, so I'm trying to log why the request is failing on the server side. Looking at the form request docs, I see that there is a withValidator hook that allows me to inspect the validation rules before they are applied. What I want is something similar but that occurs after evaluation, but before the response is delivered back to the client so that I can log the errors and find out what it's up to.

Where can I inject or intercept that data?

Snapey

3 years ago

Level 122

You could add this to Exceptions/Handler.php

use Illuminate\Validation\ValidationException;


        $this->renderable(function (ValidationException $e, $request) {

            info($request->path());
            info($request->all());
            
        });

which will log the url and request data of any validation exception ??

tykus

3 years ago

Best Answer

Level 104

If you want to temporarily target a specific Form Request; you can use the failedValidation method in that specific Form Request class:

protected function failedValidation(Validator $validator)
{
	// you have an instance of the validator from which you can get the errors, e.g.
	\Log::debug('Validation Failed', $validator->errors());

    parent::failedValidation($validator);
}

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Synchro

3 years ago

Level 2

@tykus That's exactly what I was looking for, and it's not in the docs, thank you!

I needed to do a minor tweak to log the errors as the logger didn't like the MessageBag arg:

$validator->errors()->toArray()

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