CLIO intregration in localhost

I am trying to integrate Clio in my localhost with below code:

Redirect url in the portal

$endpoint = "https://eu.app.clio.com/oauth/authorize";
$client = new \GuzzleHttp\Client();
$response = $client->request('GET', $endpoint, ['query' => [
'response_type' => 'code',
'client_id' => '***',
'redirect_uri' => 'http://127.0.0.1/callback',
'redirect_on_decline' => true,
]]);
$statusCode = $response->getStatusCode();


I am trying to get code to generate token but callback url is not getting called to get generated code from clio.

Route::get('/callback', function () {
Log::error(request()->query('code'));
return response('OK', 200)->header('Content-Type', 'text/plain');
});


Getting nothing in my log.

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