curl request from restful Api laravel

i am working on laravel i have created laravel restful api now i want to use it for web and get the api response using curl but restful api not responding.

     // Make Post Fields Array

    $data2 = [
        'data1' => 'value_1',
        'data2' => 'value_2',
    ];

    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL => "url/api/v1/oauth/token",
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => "",
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 30000,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "POST",
        CURLOPT_POSTFIELDS => json_encode($data2),
        CURLOPT_HTTPHEADER => array(
            // Set here requred headers
            "accept: */*",
            "accept-language: en-US,en;q=0.8",
            "content-type: application/json",
        ),
    ));

    $response = curl_exec($curl);
    $err = curl_error($curl);

    curl_close($curl);

    if ($err) {
        echo "cURL Error #:" . $err;
    } else {
        print_r(json_decode($response));
    }

i am posting and getting json response

via Chebli Mohamed