Merge pull request #5 from Mueller-Patrick/BETTERZON-38

Betterzon 38: Basic REST Backend for first use case

.gitignore

@@ -1,7 +1,7 @@
 # See http://help.github.com/ignore-files/ for more about ignoring files.
 
 # compiled output
-/dist
+**/dist
 /tmp
 /out-tsc
 # Only exists if Bazel was run
@@ -52,3 +52,6 @@ testem.log
 .DS_Store
 Thumbs.db
 /CucumberTests/target/
+
+# Env files
+.env

Backend/Backend.iml

@@ -2,7 +2,10 @@
 <module type="WEB_MODULE" version="4">
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
-    <content url="file://$MODULE_DIR$" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/dist" />
+    </content>
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
-</module>
+</module>

Backend/app.js

@@ -1,41 +0,0 @@
-var createError = require('http-errors');
-var express = require('express');
-var path = require('path');
-var cookieParser = require('cookie-parser');
-var logger = require('morgan');
-
-var indexRouter = require('./routes/index');
-var usersRouter = require('./routes/users');
-
-var app = express();
-
-// view engine setup
-app.set('views', path.join(__dirname, 'views'));
-app.set('view engine', 'pug');
-
-app.use(logger('dev'));
-app.use(express.json());
-app.use(express.urlencoded({extended: false}));
-app.use(cookieParser());
-app.use(express.static(path.join(__dirname, 'public')));
-
-app.use('/', indexRouter);
-app.use('/users', usersRouter);
-
-// catch 404 and forward to error handler
-app.use(function (req, res, next) {
-    next(createError(404));
-});
-
-// error handler
-app.use(function (err, req, res, next) {
-    // set locals, only providing error in development
-    res.locals.message = err.message;
-    res.locals.error = req.app.get('env') === 'development' ? err : {};
-
-    // render the error page
-    res.status(err.status || 500);
-    res.render('error');
-});
-
-module.exports = app;

Backend/bin/www

@@ -1,90 +0,0 @@
-#!/usr/bin/env node
-
-/**
- * Module dependencies.
- */
-
-var app = require('../app');
-var debug = require('debug')('backend:server');
-var http = require('http');
-
-/**
- * Get port from environment and store in Express.
- */
-
-var port = normalizePort(process.env.PORT || '3000');
-app.set('port', port);
-
-/**
- * Create HTTP server.
- */
-
-var server = http.createServer(app);
-
-/**
- * Listen on provided port, on all network interfaces.
- */
-
-server.listen(port);
-server.on('error', onError);
-server.on('listening', onListening);
-
-/**
- * Normalize a port into a number, string, or false.
- */
-
-function normalizePort(val) {
-    var port = parseInt(val, 10);
-
-    if (isNaN(port)) {
-        // named pipe
-        return val;
-    }
-
-    if (port >= 0) {
-        // port number
-        return port;
-    }
-
-    return false;
-}
-
-/**
- * Event listener for HTTP server "error" event.
- */
-
-function onError(error) {
-    if (error.syscall !== 'listen') {
-        throw error;
-    }
-
-    var bind = typeof port === 'string'
-        ? 'Pipe ' + port
-        : 'Port ' + port;
-
-    // handle specific listen errors with friendly messages
-    switch (error.code) {
-        case 'EACCES':
-            console.error(bind + ' requires elevated privileges');
-            process.exit(1);
-            break;
-        case 'EADDRINUSE':
-            console.error(bind + ' is already in use');
-            process.exit(1);
-            break;
-        default:
-            throw error;
-    }
-}
-
-/**
- * Event listener for HTTP server "listening" event.
- */
-
-function onListening() {
-    var addr = server.address();
-    var bind = typeof addr === 'string'
-        ? 'pipe ' + addr
-        : 'port ' + addr.port;
-    debug('Listening on ' + bind);
-}

Backend/package.json

@@ -1,16 +1,34 @@
 {
-  "name": "backend",
-  "version": "0.0.0",
-  "private": true,
+  "name": "Backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
   "scripts": {
-    "start": "node ./bin/www"
+    "start": "node dist/index",
+    "webpack": "webpack --config webpack.config.ts"
   },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
   "dependencies": {
-    "cookie-parser": "~1.4.4",
-    "debug": "~2.6.9",
-    "express": "~4.16.1",
-    "http-errors": "~1.6.3",
-    "morgan": "~1.9.1",
-    "pug": "2.0.0-beta11"
+    "cors": "^2.8.5",
+    "dotenv": "^8.2.0",
+    "express": "^4.17.1",
+    "helmet": "^4.2.0",
+    "mariadb": "^2.5.1",
+    "typeorm": "^0.2.29"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.8",
+    "@types/dotenv": "^8.2.0",
+    "@types/express": "^4.17.9",
+    "@types/helmet": "^4.0.0",
+    "@types/node": "^14.14.9",
+    "@types/webpack": "^4.41.25",
+    "ts-loader": "^6.2.2",
+    "typescript": "^4.1.2",
+    "webpack": "^5.6.0",
+    "webpack-cli": "^3.3.12",
+    "webpack-node-externals": "^1.7.2"
   }
 }

Backend/public/stylesheets/style.css

@@ -1,8 +0,0 @@
-body {
-  padding: 50px;
-  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
-}
-
-a {
-  color: #00B7FF;
-}

Backend/routes/index.js

@@ -1,11 +0,0 @@
-var express = require('express');
-var router = express.Router();
-
-/* GET home page. */
-router.get('/', function (req, res, next) {
-    res.render('index', {
-        title: 'Express'
-    });
-});
-
-module.exports = router;

Backend/routes/users.js

@@ -1,9 +0,0 @@
-var express = require('express');
-var router = express.Router();
-
-/* GET users listing. */
-router.get('/', function (req, res, next) {
-    res.send('respond with a resource');
-});
-
-module.exports = router;

Backend/src/common/http-exception.ts

@@ -0,0 +1,13 @@
+export default class HttpException extends Error {
+    statusCode: number;
+    message: string;
+    error: string | null;
+
+    constructor(statusCode: number, message: string, error?: string) {
+        super(message);
+
+        this.statusCode = statusCode;
+        this.message = message;
+        this.error = error || null;
+    }
+}

Backend/src/index.ts

@@ -0,0 +1,83 @@
+/**
+ * Required External Modules
+ */
+
+import * as dotenv from 'dotenv';
+import express from 'express';
+import cors from 'cors';
+import helmet from 'helmet';
+import {productsRouter} from './models/products/products.router';
+import {categoriesRouter} from './models/categories/categories.router';
+import {manufacturersRouter} from './models/manufacturers/manufacturers.router';
+import {pricesRouter} from './models/prices/prices.router';
+import {vendorsRouter} from './models/vendors/vendors.router';
+import {errorHandler} from './middleware/error.middleware';
+import {notFoundHandler} from './middleware/notFound.middleware';
+
+dotenv.config();
+
+
+/**
+ * App Variables
+ */
+
+if (!process.env.PORT) {
+    process.exit(1);
+}
+
+const PORT: number = parseInt(process.env.PORT as string, 10);
+
+const app = express();
+
+
+/**
+ *  App Configuration
+ */
+
+app.use(helmet());
+app.use(cors());
+app.use(express.json());
+app.use('/products', productsRouter);
+app.use('/categories', categoriesRouter);
+app.use('/manufacturers', manufacturersRouter);
+app.use('/prices', pricesRouter);
+app.use('/vendors', vendorsRouter);
+
+app.use(errorHandler);
+app.use(notFoundHandler);
+
+
+/**
+ * Server Activation
+ */
+
+const server = app.listen(PORT, () => {
+    console.log(`Listening on port ${PORT}`);
+});
+
+
+/**
+ * Webpack HMR Activation
+ */
+
+type ModuleId = string | number;
+
+interface WebpackHotModule {
+    hot?: {
+        data: any;
+        accept(
+            dependencies: string[],
+            callback?: (updatedDependencies: ModuleId[]) => void,
+        ): void;
+        accept(dependency: string, callback?: () => void): void;
+        accept(errHandler?: (err: Error) => void): void;
+        dispose(callback: (data: any) => void): void;
+    };
+}
+
+declare const module: WebpackHotModule;
+
+if (module.hot) {
+    module.hot.accept();
+    module.hot.dispose(() => server.close());
+}

Backend/src/middleware/error.middleware.ts

@@ -0,0 +1,15 @@
+import HttpException from "../common/http-exception";
+import { Request, Response, NextFunction } from "express";
+
+export const errorHandler = (
+    error: HttpException,
+    request: Request,
+    response: Response,
+    next: NextFunction
+) => {
+    const status = error.statusCode || 500;
+    const message =
+        error.message || "It's not you. It's us. We are having some problems.";
+
+    response.status(status).send(message);
+};

Backend/src/middleware/notFound.middleware.ts

@@ -0,0 +1,12 @@
+import { Request, Response, NextFunction } from "express";
+
+export const notFoundHandler = (
+    request: Request,
+    response: Response,
+    next: NextFunction
+) => {
+
+    const message = "Resource not found";
+
+    response.status(404).send(message);
+};

Backend/src/models/categories/categories.interface.ts

@@ -0,0 +1,5 @@
+import {Category} from './category.interface';
+
+export interface Categories {
+    [key: number]: Category;
+}

Backend/src/models/categories/categories.router.ts

@@ -0,0 +1,112 @@
+/**
+ * Required External Modules and Interfaces
+ */
+
+import express, {Request, Response} from 'express';
+import * as CategoryService from './categories.service';
+import {Category} from './category.interface';
+import {Categories} from './categories.interface';
+
+
+/**
+ * Router Definition
+ */
+
+export const categoriesRouter = express.Router();
+
+
+/**
+ * Controller Definitions
+ */
+
+// GET items/
+
+categoriesRouter.get('/', async (req: Request, res: Response) => {
+    try {
+        const categories: Categories = await CategoryService.findAll();
+
+        res.status(200).send(categories);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:id
+
+categoriesRouter.get('/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const category: Category = await CategoryService.find(id);
+
+        res.status(200).send(category);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:name
+
+categoriesRouter.get('/search/:term', async (req: Request, res: Response) => {
+    const term: string = req.params.term;
+
+    if (!term) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const categories: Categories = await CategoryService.findBySearchTerm(term);
+
+        res.status(200).send(categories);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+
+// POST items/
+
+// categoriesRouter.post('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.create(category);
+//
+//         res.sendStatus(201);
+//     } catch (e) {
+//         res.status(404).send(e.message);
+//     }
+// });
+//
+// // PUT items/
+//
+// categoriesRouter.put('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.update(category);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });
+//
+// // DELETE items/:id
+//
+// categoriesRouter.delete('/:id', async (req: Request, res: Response) => {
+//     try {
+//         const id: number = parseInt(req.params.id, 10);
+//         await CategoryService.remove(id);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });

Backend/src/models/categories/categories.service.ts

@@ -0,0 +1,135 @@
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const mariadb = require('mariadb');
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE,
+    connectionLimit: 5
+});
+
+/**
+ * Data Model Interfaces
+ */
+
+import {Category} from './category.interface';
+import {Categories} from './categories.interface';
+
+
+/**
+ * Service Methods
+ */
+
+export const findAll = async (): Promise<Categories> => {
+    let conn;
+    let categRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT category_id, name FROM categories');
+        for (let row in rows) {
+            if (row !== 'meta') {
+                let categ: Category = {
+                    category_id: 0,
+                    name: ''
+                };
+                const sqlCateg = rows[row];
+
+                categ.category_id = sqlCateg.category_id;
+                categ.name = sqlCateg.name;
+                categRows.push(categ);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return categRows;
+};
+
+export const find = async (id: number): Promise<Category> => {
+    let conn;
+    let categ: any;
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT category_id, name FROM categories WHERE category_id = ?', id);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                categ = rows[row];
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return categ;
+};
+
+export const findBySearchTerm = async (term: string): Promise<Categories> => {
+    let conn;
+    let categRows = [];
+    try {
+        conn = await pool.getConnection();
+        term = '%' + term + '%';
+        const rows = await conn.query('SELECT category_id, name FROM categories WHERE name LIKE ?', term);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                categRows.push(rows[row]);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return categRows;
+};
+
+// export const create = async (newItem: Product): Promise<void> => {
+//     let conn;
+//     try {
+//         conn = await pool.getConnection();
+//         await conn.query("");
+//
+//     } catch (err) {
+//         throw err;
+//     } finally {
+//         if (conn) conn.end();
+//     }
+// };
+//
+// export const update = async (updatedItem: Product): Promise<void> => {
+//     if (models.products[updatedItem.product_id]) {
+//         models.products[updatedItem.product_id] = updatedItem;
+//         return;
+//     }
+//
+//     throw new Error("No record found to update");
+// };
+//
+// export const remove = async (id: number): Promise<void> => {
+//     const record: Product = models.products[id];
+//
+//     if (record) {
+//         delete models.products[id];
+//         return;
+//     }
+//
+//     throw new Error("No record found to delete");
+// };

Backend/src/models/categories/category.interface.ts

@@ -0,0 +1,4 @@
+export interface Category {
+    category_id: number;
+    name: string;
+}

Backend/src/models/manufacturers/manufacturer.interface.ts

@@ -0,0 +1,4 @@
+export interface Manufacturer {
+    manufacturer_id: number;
+    name: string;
+}

Backend/src/models/manufacturers/manufacturers.interface.ts

@@ -0,0 +1,5 @@
+import {Manufacturer} from './manufacturer.interface';
+
+export interface Manufacturers {
+    [key: number]: Manufacturer;
+}

Backend/src/models/manufacturers/manufacturers.router.ts

@@ -0,0 +1,112 @@
+/**
+ * Required External Modules and Interfaces
+ */
+
+import express, {Request, Response} from 'express';
+import * as ManufacturerService from './manufacturers.service';
+import {Manufacturer} from './manufacturer.interface';
+import {Manufacturers} from './manufacturers.interface';
+
+
+/**
+ * Router Definition
+ */
+
+export const manufacturersRouter = express.Router();
+
+
+/**
+ * Controller Definitions
+ */
+
+// GET items/
+
+manufacturersRouter.get('/', async (req: Request, res: Response) => {
+    try {
+        const manufacturers: Manufacturers = await ManufacturerService.findAll();
+
+        res.status(200).send(manufacturers);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:id
+
+manufacturersRouter.get('/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const manufacturer: Manufacturer = await ManufacturerService.find(id);
+
+        res.status(200).send(manufacturer);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:name
+
+manufacturersRouter.get('/search/:term', async (req: Request, res: Response) => {
+    const term: string = req.params.term;
+
+    if (!term) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const manufacturer: Manufacturers = await ManufacturerService.findBySearchTerm(term);
+
+        res.status(200).send(manufacturer);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+
+// POST items/
+
+// manufacturersRouter.post('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.create(category);
+//
+//         res.sendStatus(201);
+//     } catch (e) {
+//         res.status(404).send(e.message);
+//     }
+// });
+//
+// // PUT items/
+//
+// manufacturersRouter.put('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.update(category);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });
+//
+// // DELETE items/:id
+//
+// manufacturersRouter.delete('/:id', async (req: Request, res: Response) => {
+//     try {
+//         const id: number = parseInt(req.params.id, 10);
+//         await CategoryService.remove(id);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });

Backend/src/models/manufacturers/manufacturers.service.ts

@@ -0,0 +1,135 @@
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const mariadb = require('mariadb');
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE,
+    connectionLimit: 5
+});
+
+/**
+ * Data Model Interfaces
+ */
+
+import {Manufacturer} from './manufacturer.interface';
+import {Manufacturers} from './manufacturers.interface';
+
+
+/**
+ * Service Methods
+ */
+
+export const findAll = async (): Promise<Manufacturers> => {
+    let conn;
+    let manRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT manufacturer_id, name FROM manufacturers');
+        for (let row in rows) {
+            if (row !== 'meta') {
+                let man: Manufacturer = {
+                    manufacturer_id: 0,
+                    name: ''
+                };
+                const sqlMan = rows[row];
+
+                man.manufacturer_id = sqlMan.manufacturer_id;
+                man.name = sqlMan.name;
+                manRows.push(man);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return manRows;
+};
+
+export const find = async (id: number): Promise<Manufacturer> => {
+    let conn;
+    let man: any;
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT manufacturer_id, name FROM manufacturers WHERE manufacturer_id = ?', id);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                man = rows[row];
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return man;
+};
+
+export const findBySearchTerm = async (term: string): Promise<Manufacturers> => {
+    let conn;
+    let manRows = [];
+    try {
+        conn = await pool.getConnection();
+        term = '%' + term + '%';
+        const rows = await conn.query('SELECT manufacturer_id, name FROM manufacturers WHERE name LIKE ?', term);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                manRows.push(rows[row]);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return manRows;
+};
+
+// export const create = async (newItem: Product): Promise<void> => {
+//     let conn;
+//     try {
+//         conn = await pool.getConnection();
+//         await conn.query("");
+//
+//     } catch (err) {
+//         throw err;
+//     } finally {
+//         if (conn) conn.end();
+//     }
+// };
+//
+// export const update = async (updatedItem: Product): Promise<void> => {
+//     if (models.products[updatedItem.product_id]) {
+//         models.products[updatedItem.product_id] = updatedItem;
+//         return;
+//     }
+//
+//     throw new Error("No record found to update");
+// };
+//
+// export const remove = async (id: number): Promise<void> => {
+//     const record: Product = models.products[id];
+//
+//     if (record) {
+//         delete models.products[id];
+//         return;
+//     }
+//
+//     throw new Error("No record found to delete");
+// };

Backend/src/models/prices/price.interface.ts

@@ -0,0 +1,7 @@
+export interface Price {
+    price_id: number;
+    product_id: number;
+    vendor_id: number;
+    price_in_cents: number;
+    timestamp: Date;
+}

Backend/src/models/prices/prices.interface.ts

@@ -0,0 +1,5 @@
+import {Price} from './price.interface';
+
+export interface Prices {
+    [key: number]: Price;
+}

Backend/src/models/prices/prices.router.ts

@@ -0,0 +1,112 @@
+/**
+ * Required External Modules and Interfaces
+ */
+
+import express, {Request, Response} from 'express';
+import * as PriceService from './prices.service';
+import {Price} from './price.interface';
+import {Prices} from './prices.interface';
+
+
+/**
+ * Router Definition
+ */
+
+export const pricesRouter = express.Router();
+
+
+/**
+ * Controller Definitions
+ */
+
+// GET items/
+
+pricesRouter.get('/', async (req: Request, res: Response) => {
+    try {
+        const prices: Prices = await PriceService.findAll();
+
+        res.status(200).send(prices);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:id
+
+pricesRouter.get('/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const price: Price = await PriceService.find(id);
+
+        res.status(200).send(price);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:name
+
+pricesRouter.get('/products/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const prices: Prices = await PriceService.findByProduct(id);
+
+        res.status(200).send(prices);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+
+// POST items/
+
+// pricesRouter.post('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.create(category);
+//
+//         res.sendStatus(201);
+//     } catch (e) {
+//         res.status(404).send(e.message);
+//     }
+// });
+//
+// // PUT items/
+//
+// pricesRouter.put('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.update(category);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });
+//
+// // DELETE items/:id
+//
+// pricesRouter.delete('/:id', async (req: Request, res: Response) => {
+//     try {
+//         const id: number = parseInt(req.params.id, 10);
+//         await CategoryService.remove(id);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });

Backend/src/models/prices/prices.service.ts

@@ -0,0 +1,140 @@
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const mariadb = require('mariadb');
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE,
+    connectionLimit: 5
+});
+
+/**
+ * Data Model Interfaces
+ */
+
+import {Price} from './price.interface';
+import {Prices} from './prices.interface';
+
+
+/**
+ * Service Methods
+ */
+
+export const findAll = async (): Promise<Prices> => {
+    let conn;
+    let priceRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices');
+        for (let row in rows) {
+            if (row !== 'meta') {
+                let price: Price = {
+                    price_id: 0,
+                    price_in_cents: 0,
+                    product_id: 0,
+                    timestamp: new Date(),
+                    vendor_id: 0
+                };
+                const sqlPrice = rows[row];
+
+                price.price_id = sqlPrice.price_id;
+                price.product_id = sqlPrice.product_id;
+                price.vendor_id = sqlPrice.vendor_id;
+                price.price_in_cents = sqlPrice.price_in_cents;
+                price.timestamp = sqlPrice.timestamp;
+                priceRows.push(price);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return priceRows;
+};
+
+export const find = async (id: number): Promise<Price> => {
+    let conn;
+    let price: any;
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE price_id = ?', id);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                price = rows[row];
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return price;
+};
+
+export const findByProduct = async (product: number): Promise<Prices> => {
+    let conn;
+    let priceRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE product_id = ?', product);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                priceRows.push(rows[row]);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return priceRows;
+};
+
+// export const create = async (newItem: Product): Promise<void> => {
+//     let conn;
+//     try {
+//         conn = await pool.getConnection();
+//         await conn.query("");
+//
+//     } catch (err) {
+//         throw err;
+//     } finally {
+//         if (conn) conn.end();
+//     }
+// };
+//
+// export const update = async (updatedItem: Product): Promise<void> => {
+//     if (models.products[updatedItem.product_id]) {
+//         models.products[updatedItem.product_id] = updatedItem;
+//         return;
+//     }
+//
+//     throw new Error("No record found to update");
+// };
+//
+// export const remove = async (id: number): Promise<void> => {
+//     const record: Product = models.products[id];
+//
+//     if (record) {
+//         delete models.products[id];
+//         return;
+//     }
+//
+//     throw new Error("No record found to delete");
+// };

Backend/src/models/products/product.interface.ts

@@ -0,0 +1,14 @@
+export interface Product {
+    product_id: number;
+    asin: string;
+    is_active: boolean;
+    name: string;
+    short_description: string;
+    long_description: string;
+    image_guid: string;
+    date_added: Date;
+    last_modified: Date;
+    manufacturer_id: number;
+    selling_rank: string;
+    category_id: number;
+}

Backend/src/models/products/products.interface.ts

@@ -0,0 +1,5 @@
+import {Product} from './product.interface';
+
+export interface Products {
+    [key: number]: Product;
+}

Backend/src/models/products/products.router.ts

@@ -0,0 +1,112 @@
+/**
+ * Required External Modules and Interfaces
+ */
+
+import express, {Request, Response} from 'express';
+import * as ProductService from './products.service';
+import {Product} from './product.interface';
+import {Products} from './products.interface';
+
+
+/**
+ * Router Definition
+ */
+
+export const productsRouter = express.Router();
+
+
+/**
+ * Controller Definitions
+ */
+
+// GET items/
+
+productsRouter.get('/', async (req: Request, res: Response) => {
+    try {
+        const products: Products = await ProductService.findAll();
+
+        res.status(200).send(products);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:id
+
+productsRouter.get('/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const product: Product = await ProductService.find(id);
+
+        res.status(200).send(product);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:name
+
+productsRouter.get('/search/:term', async (req: Request, res: Response) => {
+    const term: string = req.params.term;
+
+    if (!term) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const products: Products = await ProductService.findBySearchTerm(term);
+
+        res.status(200).send(products);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+
+// POST items/
+
+// productsRouter.post('/', async (req: Request, res: Response) => {
+//     try {
+//         const product: Product = req.body.product;
+//
+//         await ProductService.create(product);
+//
+//         res.sendStatus(201);
+//     } catch (e) {
+//         res.status(404).send(e.message);
+//     }
+// });
+//
+// // PUT items/
+//
+// productsRouter.put('/', async (req: Request, res: Response) => {
+//     try {
+//         const product: Product = req.body.product;
+//
+//         await ProductService.update(product);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });
+//
+// // DELETE items/:id
+//
+// productsRouter.delete('/:id', async (req: Request, res: Response) => {
+//     try {
+//         const id: number = parseInt(req.params.id, 10);
+//         await ProductService.remove(id);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });

Backend/src/models/products/products.service.ts

@@ -0,0 +1,156 @@
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const mariadb = require('mariadb');
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE,
+    connectionLimit: 5
+});
+
+/**
+ * Data Model Interfaces
+ */
+
+import {Product} from './product.interface';
+import {Products} from './products.interface';
+
+
+/**
+ * Service Methods
+ */
+
+export const findAll = async (): Promise<Products> => {
+    let conn;
+    let prodRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT product_id, name, asin, is_active, short_description, long_description, image_guid, date_added, last_modified, manufacturer_id, selling_rank, category_id FROM products');
+        for (let row in rows) {
+            if (row !== 'meta') {
+                let prod: Product = {
+                    asin: '',
+                    category_id: 0,
+                    date_added: new Date(),
+                    image_guid: '',
+                    is_active: false,
+                    last_modified: new Date(),
+                    long_description: '',
+                    manufacturer_id: 0,
+                    name: '',
+                    product_id: 0,
+                    selling_rank: '',
+                    short_description: ''
+                };
+                const sqlProd = rows[row];
+
+                prod.product_id = sqlProd.product_id;
+                prod.name = sqlProd.name;
+                prod.asin = sqlProd.asin;
+                prod.is_active = sqlProd.is_active;
+                prod.short_description = sqlProd.short_description;
+                prod.long_description = sqlProd.long_description;
+                prod.image_guid = sqlProd.image_guid;
+                prod.date_added = sqlProd.date_added;
+                prod.last_modified = sqlProd.last_modified;
+                prod.manufacturer_id = sqlProd.manufacturer_id;
+                prod.selling_rank = sqlProd.selling_rank;
+                prod.category_id = sqlProd.category_id;
+                prodRows.push(prod);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return prodRows;
+};
+
+export const find = async (id: number): Promise<Product> => {
+    let conn;
+    let prod: any;
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT product_id, name, asin, is_active, short_description, long_description, image_guid, date_added, last_modified, manufacturer_id, selling_rank, category_id FROM products WHERE product_id = ?', id);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                prod = rows[row];
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return prod;
+};
+
+export const findBySearchTerm = async (term: string): Promise<Products> => {
+    let conn;
+    let prodRows = [];
+    try {
+        conn = await pool.getConnection();
+        term = '%' + term + '%';
+        const rows = await conn.query('SELECT product_id, name, asin, is_active, short_description, long_description, image_guid, date_added, last_modified, manufacturer_id, selling_rank, category_id FROM products WHERE name LIKE ?', term);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                prodRows.push(rows[row]);
+            }
+        }
+
+    } catch (err) {
+        console.log(err);
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return prodRows;
+};
+
+// export const create = async (newItem: Product): Promise<void> => {
+//     let conn;
+//     try {
+//         conn = await pool.getConnection();
+//         await conn.query("");
+//
+//     } catch (err) {
+//         throw err;
+//     } finally {
+//         if (conn) conn.end();
+//     }
+// };
+//
+// export const update = async (updatedItem: Product): Promise<void> => {
+//     if (models.products[updatedItem.product_id]) {
+//         models.products[updatedItem.product_id] = updatedItem;
+//         return;
+//     }
+//
+//     throw new Error("No record found to update");
+// };
+//
+// export const remove = async (id: number): Promise<void> => {
+//     const record: Product = models.products[id];
+//
+//     if (record) {
+//         delete models.products[id];
+//         return;
+//     }
+//
+//     throw new Error("No record found to delete");
+// };

Backend/src/models/vendors/vendor.interface.ts

@@ -0,0 +1,10 @@
+export interface Vendor {
+    vendor_id: number;
+    name: string;
+    streetname: string;
+    zip_code: string;
+    city: string;
+    country_code: string;
+    phone: string;
+    website: string;
+}

Backend/src/models/vendors/vendors.interface.ts

@@ -0,0 +1,5 @@
+import {Vendor} from './vendor.interface';
+
+export interface Vendors {
+    [key: number]: Vendor;
+}

Backend/src/models/vendors/vendors.router.ts

@@ -0,0 +1,112 @@
+/**
+ * Required External Modules and Interfaces
+ */
+
+import express, {Request, Response} from 'express';
+import * as VendorService from './vendors.service';
+import {Vendor} from './vendor.interface';
+import {Vendors} from './vendors.interface';
+
+
+/**
+ * Router Definition
+ */
+
+export const vendorsRouter = express.Router();
+
+
+/**
+ * Controller Definitions
+ */
+
+// GET items/
+
+vendorsRouter.get('/', async (req: Request, res: Response) => {
+    try {
+        const vendors: Vendors = await VendorService.findAll();
+
+        res.status(200).send(vendors);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:id
+
+vendorsRouter.get('/:id', async (req: Request, res: Response) => {
+    const id: number = parseInt(req.params.id, 10);
+
+    if (!id) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const vendor: Vendor = await VendorService.find(id);
+
+        res.status(200).send(vendor);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+// GET items/:name
+
+vendorsRouter.get('/search/:term', async (req: Request, res: Response) => {
+    const term: string = req.params.term;
+
+    if (!term) {
+        res.status(400).send('Missing parameters.');
+        return;
+    }
+
+    try {
+        const vendors: Vendors = await VendorService.findBySearchTerm(term);
+
+        res.status(200).send(vendors);
+    } catch (e) {
+        res.status(404).send(e.message);
+    }
+});
+
+
+// POST items/
+
+// vendorsRouter.post('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.create(category);
+//
+//         res.sendStatus(201);
+//     } catch (e) {
+//         res.status(404).send(e.message);
+//     }
+// });
+//
+// // PUT items/
+//
+// vendorsRouter.put('/', async (req: Request, res: Response) => {
+//     try {
+//         const category: Category = req.body.category;
+//
+//         await CategoryService.update(category);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });
+//
+// // DELETE items/:id
+//
+// vendorsRouter.delete('/:id', async (req: Request, res: Response) => {
+//     try {
+//         const id: number = parseInt(req.params.id, 10);
+//         await CategoryService.remove(id);
+//
+//         res.sendStatus(200);
+//     } catch (e) {
+//         res.status(500).send(e.message);
+//     }
+// });

Backend/src/models/vendors/vendors.service.ts

@@ -0,0 +1,147 @@
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+const mariadb = require('mariadb');
+const pool = mariadb.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE,
+    connectionLimit: 5
+});
+
+/**
+ * Data Model Interfaces
+ */
+
+import {Vendor} from './vendor.interface';
+import {Vendors} from './vendors.interface';
+
+
+/**
+ * Service Methods
+ */
+
+export const findAll = async (): Promise<Vendors> => {
+    let conn;
+    let vendorRows = [];
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors');
+        for (let row in rows) {
+            if (row !== 'meta') {
+                let vendor: Vendor = {
+                    city: '',
+                    country_code: '',
+                    name: '',
+                    phone: '',
+                    streetname: '',
+                    vendor_id: 0,
+                    website: '',
+                    zip_code: ''
+                };
+                const sqlVendor = rows[row];
+
+                vendor.vendor_id = sqlVendor.vendor_id;
+                vendor.name = sqlVendor.name;
+                vendor.streetname = sqlVendor.streetname;
+                vendor.zip_code = sqlVendor.zip_code;
+                vendor.city = sqlVendor.city;
+                vendor.country_code = sqlVendor.country_code;
+                vendor.phone = sqlVendor.phone;
+                vendor.website = sqlVendor.website;
+                vendorRows.push(vendor);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return vendorRows;
+};
+
+export const find = async (id: number): Promise<Vendor> => {
+    let conn;
+    let vendor: any;
+    try {
+        conn = await pool.getConnection();
+        const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE vendor_id = ?', id);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                vendor = rows[row];
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return vendor;
+};
+
+export const findBySearchTerm = async (term: string): Promise<Vendors> => {
+    let conn;
+    let vendorRows = [];
+    try {
+        conn = await pool.getConnection();
+        term = '%' + term + '%';
+        const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE name LIKE ?', term);
+        for (let row in rows) {
+            if (row !== 'meta') {
+                vendorRows.push(rows[row]);
+            }
+        }
+
+    } catch (err) {
+        throw err;
+    } finally {
+        if (conn) {
+            conn.end();
+        }
+    }
+
+    return vendorRows;
+};
+
+// export const create = async (newItem: Product): Promise<void> => {
+//     let conn;
+//     try {
+//         conn = await pool.getConnection();
+//         await conn.query("");
+//
+//     } catch (err) {
+//         throw err;
+//     } finally {
+//         if (conn) conn.end();
+//     }
+// };
+//
+// export const update = async (updatedItem: Product): Promise<void> => {
+//     if (models.products[updatedItem.product_id]) {
+//         models.products[updatedItem.product_id] = updatedItem;
+//         return;
+//     }
+//
+//     throw new Error("No record found to update");
+// };
+//
+// export const remove = async (id: number): Promise<void> => {
+//     const record: Product = models.products[id];
+//
+//     if (record) {
+//         delete models.products[id];
+//         return;
+//     }
+//
+//     throw new Error("No record found to delete");
+// };

Backend/tsconfig.json

@@ -0,0 +1,70 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig.json to read more about this file */
+
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    // "outDir": "./",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+    // "noUncheckedIndexedAccess": true,      /* Include 'undefined' in index signature results */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "skipLibCheck": true,                     /* Skip type checking of declaration files. */
+    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
+  }
+}

Backend/views/error.pug

@@ -1,6 +0,0 @@
-extends layout
-
-block content
-  h1= message
-  h2= error.status
-  pre #{error.stack}

Backend/views/index.pug

@@ -1,6 +0,0 @@
-extends layout
-
-block content
-  h1= title
-  p Welcome to #{title}, young Padawan! Glad you're here!
-  p Hello There! <br> - General Kenobi!

Backend/views/layout.pug

@@ -1,7 +0,0 @@
-doctype html
-html
-  head
-    title= title
-    link(rel='stylesheet', href='/stylesheets/style.css')
-  body
-    block content

Backend/webpack.config.ts

@@ -0,0 +1,32 @@
+const webpack = require("webpack");
+const path = require("path");
+const nodeExternals = require("webpack-node-externals");
+
+module.exports = {
+    entry: ["webpack/hot/poll?100", "./src/index.ts"],
+    watch: false,
+    target: "node",
+    externals: [
+        nodeExternals({
+            whitelist: ["webpack/hot/poll?100"]
+        })
+    ],
+    module: {
+        rules: [
+            {
+                test: /.tsx?$/,
+                use: "ts-loader",
+                exclude: /node_modules/
+            }
+        ]
+    },
+    mode: "development",
+    resolve: {
+        extensions: [".tsx", ".ts", ".js"]
+    },
+    plugins: [new webpack.HotModuleReplacementPlugin()],
+    output: {
+        path: path.join(__dirname, "dist"),
+        filename: "index.js"
+    }
+};

Frontend/Frontend.iml

@@ -3,8 +3,8 @@
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/e2e" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/res" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/e2e" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
       <excludeFolder url="file://$MODULE_DIR$/dist" />
       <excludeFolder url="file://$MODULE_DIR$/tmp" />