fetchPiket.php

<?php
$method = $_SERVER['REQUEST_METHOD'];
if ($method == "OPTIONS") {
    header('Access-Control-Allow-Origin: *');
    header('Access-Control-Allow-Headers: access');
    header('Access-Control-Allow-Methods: POST');
    header('Content-Type: application/json');
    header('Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With');
    header('HTTP/1.1 200 OK');
    die();
}

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: access');
header('Access-Control-Allow-Methods: POST');
header('Content-Type: application/json');
header('Access-Control-Allow-Headers: Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With');

require_once __DIR__ . '/src/dbConnect.php';
require_once __DIR__ . '/src/jsonHandler.php';

if ($_SERVER['REQUEST_METHOD'] == 'POST') :
    $data = json_decode(file_get_contents('php://input'));

    $id = trim($data->id);

    $sql = "SELECT * FROM piket WHERE `id`='$id'";
    $query = mysqli_query($conn, $sql);

    $array = array();
    while ($row = mysqli_fetch_array($query, MYSQLI_ASSOC)) {
        $array[] = $row;
    }
    jsonHandler(200, '', $array);

endif;

jsonHandler(405, 'HTTP method untuk request harus POST');