/api/products and /api/orders
This commit is contained in:
97
server/db/database.js
Normal file
97
server/db/database.js
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@@ -0,0 +1,97 @@
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import mdb from "mariadb"
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export default class DBAdapter {
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#dbhost = 'localhost';
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#dbPort = 3306;
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#dbName = 'N';
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#dbUserLogin = 'u';
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#dbUserPassword = 'p';
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#dbClient = null;
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constructor({
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dbHost,
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dbPort,
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dbName,
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dbUserLogin,
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dbUserPassword
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}) {
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this.#dbhost = dbHost;
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this.#dbPort = dbPort;
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this.#dbName = dbName;
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this.#dbUserLogin = dbUserLogin;
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this.#dbUserPassword = dbUserPassword;
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this.#dbClient = new mdb.createPool({
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host: this.#dbhost,
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port: this.#dbPort,
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database: this.#dbName,
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user: this.#dbUserLogin,
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password: this.#dbUserPassword
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});
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}
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async connect() {
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try {
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// Проверяем подключение, выполняя простой запрос
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const conn = await this.#dbClient.getConnection();
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console.log("✅ Database connection test successful");
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conn.release();
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} catch (err) {
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console.error("❌ Database connection failed:", err.message);
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// Пробрасываем ошибку дальше
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return Promise.reject();
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}
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}
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async disconnect() {
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await this.#dbClient.end();
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console.log("DISCONNECT");
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}
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async getProducts() {
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try {
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const products = await this.#dbClient.query('SELECT * FROM products ORDER BY name');
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console.log("All products:", products);
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return products;
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} catch(err){
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console.log(`WHOOPS`);
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return Promise.reject();
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}
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}
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async getOrders() {
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try {
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const raw_orders = await this.#dbClient.query('SELECT * FROM orders ORDER BY order_date ASC');
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console.log("All orders:", raw_orders);
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const items = await this.#dbClient.query(
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`SELECT order_items.*, products.name AS product_name FROM order_items
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JOIN products ON order_items.product_id = products.id`
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);
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console.log("All order items:", items);
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const groupedItems = {};
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if (items && items.length > 0) {
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items.forEach(item => {
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const orderId = item.order_id;
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if (!groupedItems[orderId]) {
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groupedItems[orderId] = [];
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}
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groupedItems[orderId].push(item);
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});
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}
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const ordersWithItems = raw_orders.map(order => {
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return {
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...order,
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items: groupedItems[order.id] || []
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};
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});
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console.log("Orders with items:", ordersWithItems);
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return ordersWithItems;
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} catch(err) {
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console.log(`WHOOPS: ${err.message}`);
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return Promise.reject(err);
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}
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}
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}
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162
server/server.js
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162
server/server.js
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@@ -0,0 +1,162 @@
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import express from "express";
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import randomUUID from "crypto";
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import dotenv from "dotenv"
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import DBAdapter from "./db/database.js";
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import { error, timeStamp } from "console";
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dotenv.config({
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path: './server/.env'
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});
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const {
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HOST,
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PORT,
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DATABASE,
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USER,
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PASSWORD
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} = process.env;
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const app = express();
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app.use(express.json());
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const adapter = new DBAdapter({
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dbHost: HOST,
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dbPort: PORT,
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dbName: DATABASE,
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dbUserLogin: USER,
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dbUserPassword: PASSWORD
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});
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let currentDate = (new Date()).toISOString().slice(0, 10);
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async function getCurrentDate() {
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return currentDate;
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}
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function AddDays(dateString, days) {
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let date = new Date(dateString);
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date.setDate(date.getDate() + days);
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return formatDate(date);
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}
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function Random_Increase() {
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return Math.floor(Math.random() * 5) + 1;
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}
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app.get('/api/current-date', async (req, res) => {
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let currentDate = await getCurrentDate();
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res.json({ currentDate });
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});
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app.get('/api/products', async(req, res) => {
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try {
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const db_products = await adapter.getProducts();
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const products = db_products.map(
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( {id, name, quantity} ) => ({
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ID: id,
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pr_name: name,
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count: quantity
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})
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);
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res.statusCode = 200;
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res.message = "OK";
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res.json(products);
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} catch (err){
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res.statusCode = 500;
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res.message = "WHOOPS";
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res.json({
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timeStamp: new Date().toISOString(),
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statusCode: 500,
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error : `${err}`
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})
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}
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});
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app.post('/api/current-date/advance', async (req, res) => {
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let currentDate = await getCurrentDate();
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// TODO: select orders with current date and delete them from database
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// TODO: get all products and increase with Random_Increase()
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let nextDate = AddDays(currentDate, 1);
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currentDate = nextDate;
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res.json({ currentDate: nextDate });
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});
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app.get('/api/orders', async(req, res) => {
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try {
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const db_orders = await adapter.getOrders();
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const orders = db_orders.map(
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( {id, customer_name, order_date, status, total_amount, items} ) => ({
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ID: id,
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customer: customer_name,
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date: order_date,
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status: status,
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total: total_amount,
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items: items ? items.map(item => ({
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product_id: item.product_id,
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product_name: item.product_name || item.name,
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quantity: item.quantity,
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price: item.price
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})) : []
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})
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);
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res.statusCode = 200;
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res.message = "OK";
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res.json(orders);
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} catch (err) {
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res.statusCode = 500;
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res.message = "WHOOPS";
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res.json({
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timeStamp: new Date().toISOString(),
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statusCode: 500,
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error: `${err}`
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});
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}
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});
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app.post('/api/orders', async (req, res) => {
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let { customerName, orderDate } = req.body;
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if (!customerName || !orderDate) {
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return res.status(400).json({ message: 'Full name and date, please!' });
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}
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let currentDate = await getCurrentDate();
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if (orderDate < currentDate) {
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return res.status(400).json({ message: 'Date of order can\'t be more, than current!' });
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}
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let id = randomUUID();
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// TODO: Insert id into orders
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res.status(201).json({ id, customer_name: customerName, date: orderDate });
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});
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app.use((req, res) => {
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res.status(404).json({ error: 'Invalid route' });
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});
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app.use((err, req, res, next) => {
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console.error(err.stack);
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res.status(500).json({ error: 'Something went wrong!' });
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});
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app.listen(3000, async() => {
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try {
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await adapter.connect();
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console.log(`✅ Server running on port 3000`);
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console.log(`📡 Local: http://localhost:3000`);
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} catch(err){
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console.log("Shutting down application...");
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process.exit(100);
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}
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});
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process.on('SIGTERM', () => {
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console.log("CLOSE APP");
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app.close( async() => {
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await adapter.disconnect();
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console.log("DB DISCONNECTED");
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});
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});
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