Mpesa Call Back Json pattern and saving

call back json

{
    "Body": {
        "stkCallback": {
            "MerchantRequestID": "8948-2950929-465",
            "CheckoutRequestID": "ws_CO_251120171533239788",
            "ResultCode": 0,
            "ResultDesc": "The service request is processed successfully.",
            "CallbackMetadata": {
                "Item": [
                    {
                        "Name": "Amount",
                        "Value": 150
                    },
                    {
                        "Name": "MpesaReceiptNumber",
                        "Value": "LKP3DA0Q6F"
                    },
                    {
                        "Name": "Balance"
                    },
                    {
                        "Name": "TransactionDate",
                        "Value": 20171125153789
                    },
                    {
                        "Name": "PhoneNumber",
                        "Value": 254724540039
                    }
                ]
            }
        }
    }
}

transactions.sql

-- phpMyAdmin SQL Dump
-- version 4.6.5.2
-- https://www.phpmyadmin.net/
--
-- Host: localhost
-- Generation Time: Dec 21, 2017 at 08:14 AM
-- Server version: 10.1.21-MariaDB
-- PHP Version: 7.0.15

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;

--
-- Database: `eldoclassifieds`
--

-- --------------------------------------------------------

--
-- Table structure for table `transactions`
--

CREATE TABLE `transactions` (
  `id` int(10) UNSIGNED NOT NULL,
  `merchant_id` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
  `checkout_id` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
  `result_code` varchar(191) COLLATE utf8mb4_unicode_ci NOT NULL,
  `phone_no` varchar(191) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `amount` varchar(191) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `mpesa_receipt_no` varchar(191) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `valid` tinyint(1) NOT NULL DEFAULT '0',
  `user_id` varchar(191) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `listing_id` varchar(191) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

--
-- Dumping data for table `transactions`
--

INSERT INTO `transactions` (`id`, `merchant_id`, `checkout_id`, `result_code`, `phone_no`, `amount`, `mpesa_receipt_no`, `valid`, `user_id`, `listing_id`, `created_at`, `updated_at`) VALUES
(1, '13759-195812-2', 'ws_CO_26112017005057355', '0', '254724540039', '240', 'LKQ5DKNPU9', 1, '1', '1', '2017-11-25 18:53:02', '2017-11-27 15:44:41'),
(5, '8956-3002815-1', 'ws_CO_26112017005513937', '0', '254724540039', '200', 'LKQ5DKO1QB', 1, '1', '10', '2017-11-25 18:58:34', '2017-12-13 12:46:17'),
(6, '8948-2950929-1', 'ws_CO_25112017153323944', '0', '254724540039', '10', 'LKP3DA0Q0J', 1, '1', '13', '2017-12-18 12:00:47', '2017-12-18 13:49:05'),
(7, '8948-2950929-465', 'ws_CO_251120171533239788', '0', '254724540039', '150', 'LKP3DA0Q6F', 1, '1', '12', '2017-12-18 12:03:24', '2017-12-18 13:51:19');

--
-- Indexes for dumped tables
--

--
-- Indexes for table `transactions`
--
ALTER TABLE `transactions`
  ADD PRIMARY KEY (`id`),
  ADD UNIQUE KEY `transactions_mpesa_receipt_no_unique` (`mpesa_receipt_no`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `transactions`
--
ALTER TABLE `transactions`
  MODIFY `id` int(10) UNSIGNED NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=8;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;