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Installation Authentication
Last updated 2 years ago.
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on every post request laravel sends a token, this is also stored on the session, laravel matches the token on the request with the one on the session if the tokens mismatch this exception occurs.

https://laravel.com/docs/5.3/csrf

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astroanu said:

on every post request laravel sends a token, this is also stored on the session, laravel matches the token on the request with the one on the session if the tokens mismatch this exception occurs.

https://laravel.com/docs/5.3/csrf

@astroanu thanks for reply :) how could it be mismatched? i installed most defaultly. and used php artisan make auth. and then i served my app. but appears error like that.

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is it right sessiontoken changed on every time i did refresh page?

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If you are sending data via html form, try including {{csrf_token()}}. This will generate a token that will be sent with your form

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its just default auth login from

<form class="form-horizontal" role="form" method="POST" action="{{ url('/login') }}"> {{ csrf_field() }}
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when i press refresh =>

protected function tokensMatch($request) { $sessionToken = $request->session()->token();

    $token = $request->input('_token') ?: $request->header('X-CSRF-TOKEN');

    if (! $token && $header = $request->header('X-XSRF-TOKEN')) {
        $token = $this->encrypter->decrypt($header);
    }

    if (! is_string($sessionToken) || ! is_string($token)) {
        return false;
    }



    echo $sessionToken; /this token changes every time i refresh/
    echo '<br>';
    echo $token; /this token not changes /

    return hash_equals($sessionToken, $token);
}
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is there any solution on windows?

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on every action refresh click register login etc there is a new session file created in storage/framework/sessions folder.

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