Let’s consider, we have a demo Restful service (created in Java Spring here but you can create in any language) to login user which accepts username and password as input and returns Success/Failure in response.
Request Object : Demo Login Request class :
Response Object :
Here is how to call it in curl :
$service_url = 'type complete service url here’'; $curl = curl_init ( $service_url ); $loginRequest = array ( 'username' => ‘enter username here’, 'password' => ‘enter password here’, ); // input php array $data_string = json_encode ( $loginRequest ); // convert php array to json $options = array ( CURLOPT_RETURNTRANSFER => true, CURLOPT_HTTPHEADER => array ( 'Content-type: application/json' ) ); curl_setopt_array ( $curl, $options ); curl_setopt ( $curl, CURLOPT_CUSTOMREQUEST, "POST" ); curl_setopt ( $curl, CURLOPT_POSTFIELDS, $data_string ); curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, true ); curl_setopt ( $curl, CURLOPT_HTTPHEADER, array ( 'Content-Type: application/json', 'Content-Length: ' . strlen ( $data_string ) ) $response_json = curl_exec ( $curl ); $response = json_decode($response_json ,true); print_r($response); // you get response object in json format in response.