API call via cURL in php

$api_data = array(
'post' => $post
);

$api_data_json = json_encode($api_data);

$base_url = home_url().'wp-json/gic/v1/subscriber';

$curl = curl_init();
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $api_data_json);

curl_setopt($curl, CURLOPT_URL, $base_url);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
  'Content-Type: application/json',
));
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($curl);
        if(!$result){die("Connection Failure");}
        curl_close($curl);




https://www.weichieprojects.com/blog/curl-api-calls-with-php/