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BETTERZON-90: Adding API endpoint for creating price alarms (#42)
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@ -14,6 +14,7 @@ import {vendorsRouter} from './models/vendors/vendors.router';
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import {errorHandler} from './middleware/error.middleware';
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import {notFoundHandler} from './middleware/notFound.middleware';
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import {usersRouter} from './models/users/users.router';
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import {pricealarmsRouter} from './models/pricealarms/pricealarms.router';
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dotenv.config();
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@ -44,6 +45,7 @@ app.use('/manufacturers', manufacturersRouter);
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app.use('/prices', pricesRouter);
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app.use('/users', usersRouter);
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app.use('/vendors', vendorsRouter);
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app.use('/pricealarms', pricealarmsRouter);
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app.use(errorHandler);
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app.use(notFoundHandler);
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6
Backend/src/models/pricealarms/pricealarm.interface.ts
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6
Backend/src/models/pricealarms/pricealarm.interface.ts
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@ -0,0 +1,6 @@
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export interface PriceAlarm {
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alarm_id: number;
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user_id: number;
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product_id: number;
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defined_price: number;
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}
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5
Backend/src/models/pricealarms/pricealarms.interface.ts
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5
Backend/src/models/pricealarms/pricealarms.interface.ts
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import {PriceAlarm} from './pricealarm.interface';
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export interface PriceAlarms {
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[key: number]: PriceAlarm;
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}
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62
Backend/src/models/pricealarms/pricealarms.router.ts
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62
Backend/src/models/pricealarms/pricealarms.router.ts
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@ -0,0 +1,62 @@
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/**
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* Required External Modules and Interfaces
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*/
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import express, {Request, Response} from 'express';
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import * as PriceAlarmsService from './pricealarms.service';
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import {PriceAlarm} from './pricealarm.interface';
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import {PriceAlarms} from './pricealarms.interface';
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import * as UserService from '../users/users.service';
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/**
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* Router Definition
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*/
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export const pricealarmsRouter = express.Router();
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/**
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* Controller Definitions
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*/
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// POST priceAlarms/create
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pricealarmsRouter.post('/create', async (req: Request, res: Response) => {
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try {
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// Authenticate user
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const session_id = req.body.session_id;
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const session_key = req.body.session_key;
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const user_ip = req.connection.remoteAddress ?? '';
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if (!session_id || !session_key) {
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// Missing
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res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
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return;
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}
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const user = await UserService.checkSession(session_id, session_key, user_ip);
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// Get info for price alarm creation
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const product_id = req.body.product_id;
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const defined_price = req.body.defined_price;
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if (!product_id || !defined_price) {
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// Missing
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res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
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return;
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}
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// Create price alarm
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const success = await PriceAlarmsService.createPriceAlarm(user.user_id, product_id, defined_price);
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if(success) {
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res.status(200).send(JSON.stringify({success: true}));
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return;
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} else {
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res.status(400).send(JSON.stringify({success: false}));
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return;
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}
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} catch (e) {
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console.log('Error handling a request: ' + e.message);
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res.status(500).send(JSON.stringify({"message": "Internal Server Error. Try again later."}));
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}
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});
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47
Backend/src/models/pricealarms/pricealarms.service.ts
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47
Backend/src/models/pricealarms/pricealarms.service.ts
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import * as dotenv from 'dotenv';
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dotenv.config();
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const mariadb = require('mariadb');
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const pool = mariadb.createPool({
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host: process.env.DB_HOST,
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user: process.env.DB_USER,
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password: process.env.DB_PASSWORD,
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database: process.env.DB_DATABASE,
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connectionLimit: 5
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});
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/**
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* Data Model Interfaces
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*/
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import {PriceAlarm} from './pricealarm.interface';
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import {PriceAlarms} from './pricealarms.interface';
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/**
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* Service Methods
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*/
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/**
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* Creates a price alarm for the given user for the product with the defined price
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*/
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export const createPriceAlarm = async (user_id: number, product_id: number, defined_price: number): Promise<Boolean> => {
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let conn;
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try {
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conn = await pool.getConnection();
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const affected_rows = await conn.query('INSERT INTO price_alarms (user_id, product_id, defined_price) VALUES (?, ?, ?)', [user_id, product_id, defined_price]);
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console.log(affected_rows);
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return true;
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} catch (err) {
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throw err;
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} finally {
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if (conn) {
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conn.end();
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}
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}
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return false;
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};
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@ -4,7 +4,7 @@
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>de.taskhub</groupId>
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<groupId>xyz.betterzon</groupId>
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<artifactId>CucumberTests</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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@ -30,4 +30,4 @@
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<version>3.8.1</version>
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</dependency>
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</dependencies>
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</project>
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</project>
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