Wordpress api to fetch user data .

<?php 
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST');
header("Access-Control-Allow-Headers: X-Requested-With");
include('wp-load.php');
    $usernme = $_GET['usermail'];      
	$pass = $_GET['password'];
	$userpass = md5($pass);
	if(isset($usernme)  && !empty($pass)){
$user = get_user_by( 'login', $usernme );
if (wp_check_password( $pass, $user->data->user_pass, $user->ID) )
{
           /*wp_setcookie($usernme, $pass, true);
           wp_set_current_user($user->ID, $usernme);   
           do_action('wp_login', $usernme);*/
           //wp_redirect(home_url()); 
           $all_meta_for_user = get_user_meta($user->ID);
           $json = json_encode($all_meta_for_user);
           echo $json;
}
else
{ echo "Incorrect Password"; } }
else{ echo 'Something went wrong'; }
header('Content-type: application/json');
exit;