unsupported_grant_type when trying to POST request to PayPal Connect from Laravel

[sallminrexha]

Hi all, 

I have an issue where after sending post request to PayPal connect I get the error of unsupported_grant_type.

My code:

$client = new \GuzzleHttp\Client();
$clientId = "MY_CLIENT_ID";
$clientSecret = "MY_CLIENT_SECRET";
$authorizationString = base64_encode($clientId . ':' . $clientSecret);
$res = $client->request('POST', 'https://api.sandbox.paypal.com/v1/oauth2/token', ['headers' => [
    'Authorization' => 'Basic ' . $authorizationString,
],
    'form_params' => [
        'grant_type ' => 'authorization_code',
        'code ' => $data['code']
    ]
]);

[anemr1r1]

i have any problem !

[sallminrexha · Accepted solution]

I managed to fix this one only by marking grant_type with double braces "grant_type" nothing else