Is not a valid signature validator class

[bartclaeys]

I am trying to implement the following interface:

<?php
namespace Spatie\WebhookClient\SignatureValidator;

use Illuminate\Http\Request;
use Spatie\WebhookClient\WebhookConfig;

interface SignatureValidator
{
    public function isValid(Request $request, WebhookConfig $config): bool;
}

This implementation results in the below error:

<?php
namespace App\Handler;

use Illuminate\Http\Request;
use Spatie\WebhookClient\WebhookConfig;
use Spatie\WebhookClient\Exceptions\InvalidConfig;
use Spatie\WebhookClient\SignatureValidator\SignatureValidator as SignatureValidator;

class MySignatureValidator implements SignatureValidator
{
    public function isValid(Request $request, WebhookConfig $config): bool
    {
        $signature = $request->header($config->signatureHeaderName);

        if (! $signature) {
            return false;
        }

        $signingSecret = $config->signingSecret;

        if (empty($signingSecret)) {
            throw InvalidConfig::signingSecretNotSet();
        }

        $computedSignature = hash_hmac('sha256', $request->getContent(), $signingSecret);

        return true;
        //return hash_equals($signature, $computedSignature);
    }
}

Error:

Spatie\WebhookClient\Exceptions\InvalidConfig:
`App\Handler\MySignatureValidator` is not a valid signature validator class.
A valid signature validator is a class that implements
`Spatie\WebhookClient\SignatureValidator\SignatureValidator`

I've already spent 4 hours on this and about to give up and remove the package. What might be the case is that the interface is already implemented (in file DefaultSignatureValidator.php of the package) and cannot be implemented twice. But that's a wild guess.

[pjhile]

I was getting this error, and found that the issue was my class WebhookSignatureValidator was in a file SignatureValidator.php. Once I changed the filename to WebhookSignatureValidator.php everything worked fine. shrug

[keepjhonnying]

In my case, change the file to WebhookSignatureValidator.php and the custom class to WebhookSignatureValidator. Once i made this changes, everthing works!