Update multiple depedencies

# Conflicts:
#	src/models/rapla-middleware/icalgenerator/icalgenerator.service.ts

.gitignore

@@ -2,3 +2,11 @@
 .idea
 **/*.iml
 .env
+
+# Build output
+dist/
+logs/
+node_modules/
+public/
+coverage/
+testResults/

app.ts

@@ -1,6 +1,8 @@
 import express from 'express';
 import * as http from 'http';
 import * as dotenv from 'dotenv';
+import swaggerUi from 'swagger-ui-express';
+import swaggerJSDoc from 'swagger-jsdoc';
 // Router imports
 import {partyPlanerRouter} from './src/models/partyplaner/PartyPlaner.router';
 import {highlightMarkerRouter} from './src/models/twitch-highlight-marker/HighlightMarker.router';
@@ -28,8 +30,58 @@ const server: http.Server = http.createServer(app);
 // here we are adding middleware to parse all incoming requests as JSON
 app.use(express.json());
 
-// Use CORS
+// Configure CORS
-app.use(cors());
+let allowedHosts = [
+	'https://rapla.p4ddy.com',
+	'https://betterzon.p4ddy.com'
+];
+app.use(cors({
+	origin: function (origin: any, callback: any) {
+		// Allow requests with no origin
+		if (!origin) return callback(null, true);
+
+		// Block requests with wrong origin
+		if (allowedHosts.indexOf(origin) === -1) {
+			return callback(new Error('The CORS policy doesn\'t allow access for your origin.'), false);
+		}
+
+		// Allow all other requests
+		return callback(null, true);
+	}
+}));
+
+// Swagger documentation
+const swaggerDefinition = {
+	openapi: '3.0.0',
+	info: {
+		title: 'Pluto Development REST API',
+		version: '2.0.0',
+		license: {
+			name: 'Licensed Under MIT',
+			url: 'https://spdx.org/licenses/MIT.html'
+		},
+		contact: {
+			name: 'Pluto Development',
+			url: 'https://www.pluto-development.de'
+		}
+	}
+};
+
+const options = {
+	swaggerDefinition,
+	// Paths to files containing OpenAPI definitions
+	apis: [
+		'./src/models/**/*.router.ts'
+	]
+};
+
+const swaggerSpec = swaggerJSDoc(options);
+
+app.use(
+	'/docs',
+	swaggerUi.serve,
+	swaggerUi.setup(swaggerSpec)
+);
 
 // Add routers
 app.use('/dhbw-service', dhbwServiceRouter);

jest.config.js

@@ -0,0 +1,8 @@
+/** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  roots: [
+    'test'
+  ]
+};

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "PlutoDevExpressAPI",
+	"name": "plutodev_express_api",
 	"version": "1.0.0",
 	"description": "",
 	"main": "index.js",
@@ -7,7 +7,7 @@
 		"start": "tsc && node ./dist/app.js",
 		"build": "tsc",
 		"debug": "export DEBUG=* && npm run start",
-    "test": "echo \"Error: no test specified\" && exit 1"
+		"test": "jest --coverage --testResultsProcessor ./node_modules/jest-sonar-reporter/index.js"
 	},
 	"keywords": [],
 	"author": "",
@@ -19,21 +19,37 @@
 		"cors": "^2.8.5",
 		"debug": "^4.3.1",
 		"dotenv": "^8.2.0",
-    "express": "^4.17.1",
+		"express": "^4.18.2",
 		"guid-typescript": "^1.0.9",
-    "mariadb": "^2.5.3",
+		"mariadb": "^3.0.2",
 		"random-words": "^1.1.1",
+		"swagger-jsdoc": "^6.1.0",
+		"swagger-ui-express": "^4.3.0",
 		"winston": "^3.3.3"
 	},
 	"devDependencies": {
 		"@types/app-root-path": "^1.2.4",
 		"@types/bcrypt": "^3.0.1",
 		"@types/debug": "^4.1.5",
-    "@types/express": "^4.17.11",
+		"@types/express": "^4.17.15",
+		"@types/jest": "^28.1.3",
+		"@types/node": "^18.11.17",
 		"@types/random-words": "^1.1.2",
+		"@types/swagger-jsdoc": "^6.0.1",
+		"@types/swagger-ui-express": "^4.1.3",
 		"@types/winston": "^2.4.4",
+		"is-number": "^7.0.0",
+		"jest": "^28.1.1",
+		"jest-sonar-reporter": "^2.0.0",
 		"source-map-support": "^0.5.19",
+		"ts-jest": "^28.0.5",
 		"tslint": "^6.1.3",
-    "typescript": "^4.1.5"
+		"typescript": "^4.9.4"
+	},
+	"jestSonar": {
+		"sonar56x": true,
+		"reportPath": "testResults",
+		"reportFile": "sonar-report.xml",
+		"indent": 4
 	}
 }

sonar-project.properties

@@ -0,0 +1,6 @@
+sonar.projectKey=pd-api
+sonar.sources=src
+sonar.tests=test
+sonar.language=ts
+sonar.javascript.lcov.reportPaths=coverage/lcov.info
+sonar.testExecutionReportPaths=testResults/sonar-report.xml

src/models/betterzon/Betterzon.db.ts

@@ -13,7 +13,7 @@ export namespace BetterzonDB {
 		connectionLimit: 5
 	});
 
-    export function getConnection() {
+	export const getConnection = async () => {
-        return pool;
+		return pool.getConnection();
-    }
+	};
 }

src/models/betterzon/Betterzon.router.ts

@@ -35,7 +35,7 @@ betterzonRouter.use('/crawlingstatus', crawlingstatusRouter);
 betterzonRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('Pluto Development Betterzon API Endpoint');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/betterzon/categories/categories.router.ts

@@ -25,7 +25,7 @@ categoriesRouter.get('/', async (req: Request, res: Response) => {
 		const categories: Categories = await CategoryService.findAll();
 
 		res.status(200).send(categories);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -44,7 +44,7 @@ categoriesRouter.get('/:id', async (req: Request, res: Response) => {
 		const category: Category = await CategoryService.find(id);
 
 		res.status(200).send(category);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -63,7 +63,7 @@ categoriesRouter.get('/search/:term', async (req: Request, res: Response) => {
 		const categories: Categories = await CategoryService.findBySearchTerm(term);
 
 		res.status(200).send(categories);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/categories/categories.service.ts

@@ -18,7 +18,7 @@ dotenv.config();
  * Fetches and returns all known categories
  */
 export const findAll = async (): Promise<Categories> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let categRows = [];
 	try {
 		const rows = await conn.query('SELECT category_id, name FROM categories');
@@ -38,6 +38,9 @@ export const findAll = async (): Promise<Categories> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return categRows;
@@ -48,7 +51,7 @@ export const findAll = async (): Promise<Categories> => {
  * @param id The id of the category to fetch
  */
 export const find = async (id: number): Promise<Category> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let categ: any;
 	try {
 		const rows = await conn.query('SELECT category_id, name FROM categories WHERE category_id = ?', id);
@@ -60,6 +63,9 @@ export const find = async (id: number): Promise<Category> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return categ;
@@ -70,7 +76,7 @@ export const find = async (id: number): Promise<Category> => {
  * @param term the term to match
  */
 export const findBySearchTerm = async (term: string): Promise<Categories> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let categRows = [];
 	try {
 		term = '%' + term + '%';
@@ -83,6 +89,9 @@ export const findBySearchTerm = async (term: string): Promise<Categories> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return categRows;

src/models/betterzon/contact_persons/contact_persons.router.ts

@@ -7,7 +7,6 @@ import * as ContactPersonService from './contact_persons.service';
 import {Contact_Person} from './contact_person.interface';
 import {Contact_Persons} from './contact_persons.interface';
 import * as UserService from '../users/users.service';
-import * as PriceService from '../prices/prices.service';
 
 
 /**
@@ -27,7 +26,7 @@ contactpersonsRouter.get('/', async (req: Request, res: Response) => {
 		const contacts: Contact_Persons = await ContactPersonService.findAll();
 
 		res.status(200).send(contacts);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -46,7 +45,7 @@ contactpersonsRouter.get('/:id', async (req: Request, res: Response) => {
 		const contact: Contact_Person = await ContactPersonService.find(id);
 
 		res.status(200).send(contact);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -65,7 +64,7 @@ contactpersonsRouter.get('/byvendor/:id', async (req: Request, res: Response) =>
 		const contacts: Contact_Persons = await ContactPersonService.findByVendor(id);
 
 		res.status(200).send(contacts);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -95,7 +94,7 @@ contactpersonsRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -126,7 +125,7 @@ contactpersonsRouter.put('/:id', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/contact_persons/contact_persons.service.ts

@@ -18,7 +18,7 @@ dotenv.config();
  * Fetches and returns all known contact persons
  */
 export const findAll = async (): Promise<Contact_Persons> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let contRows = [];
 	try {
 		const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons');
@@ -30,6 +30,9 @@ export const findAll = async (): Promise<Contact_Persons> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return contRows;
@@ -40,7 +43,7 @@ export const findAll = async (): Promise<Contact_Persons> => {
  * @param id The id of the contact person to fetch
  */
 export const find = async (id: number): Promise<Contact_Person> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let cont: any;
 	try {
 		const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons WHERE contact_person_id = ?', id);
@@ -52,6 +55,9 @@ export const find = async (id: number): Promise<Contact_Person> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return cont;
@@ -62,7 +68,7 @@ export const find = async (id: number): Promise<Contact_Person> => {
  * @param id The id of the vendor to fetch contact persons for
  */
 export const findByVendor = async (id: number): Promise<Contact_Persons> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let contRows = [];
 	try {
 		const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons WHERE vendor_id = ?', id);
@@ -74,6 +80,9 @@ export const findByVendor = async (id: number): Promise<Contact_Persons> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return contRows;
@@ -90,7 +99,7 @@ export const findByVendor = async (id: number): Promise<Contact_Persons> => {
  * @param phone The phone number of the contact person
  */
 export const createContactEntry = async (user_id: number, vendor_id: number, first_name: string, last_name: string, gender: string, email: string, phone: string): Promise<Boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Check if the user is authorized to manage the requested vendor
 		const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
@@ -105,6 +114,9 @@ export const createContactEntry = async (user_id: number, vendor_id: number, fir
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -120,7 +132,7 @@ export const createContactEntry = async (user_id: number, vendor_id: number, fir
  * @param phone The phone number of the contact person
  */
 export const updateContactEntry = async (user_id: number, contact_person_id: number, vendor_id: number, first_name: string, last_name: string, gender: string, email: string, phone: string): Promise<Boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Check if the user is authorized to manage the requested vendor
 		const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
@@ -135,5 +147,8 @@ export const updateContactEntry = async (user_id: number, contact_person_id: num
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/crawling_status/crawling_status.router.ts

@@ -5,7 +5,6 @@
 import express, {Request, Response} from 'express';
 import * as CrawlingStatusService from './crawling_status.service';
 import {Crawling_Status} from './crawling_status.interface';
-import {Crawling_Statuses} from './crawling_statuses.interface';
 import * as UserService from '../users/users.service';
 
 
@@ -37,7 +36,7 @@ crawlingstatusRouter.get('/', async (req: Request, res: Response) => {
 		const status: Crawling_Status = await CrawlingStatusService.getCurrent();
 
 		res.status(200).send(status);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/crawling_status/crawling_status.service.ts

@@ -17,7 +17,7 @@ dotenv.config();
  * Fetches and returns the current crawling status if the issuing user is an admin
  */
 export const getCurrent = async (): Promise<Crawling_Status> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Get the current crawling process
 		let process_info = {
@@ -55,5 +55,8 @@ export const getCurrent = async (): Promise<Crawling_Status> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/favorite_shops/favoriteshops.router.ts

@@ -4,8 +4,6 @@
 
 import express, {Request, Response} from 'express';
 import * as FavoriteShopsService from './favoriteshops.service';
-import {FavoriteShop} from './favoriteshop.interface';
-import {FavoriteShops} from './favoriteshops.interface';
 import * as UserService from '../users/users.service';
 
 
@@ -31,7 +29,7 @@ favoriteshopsRouter.get('/', async (req: Request, res: Response) => {
 		const priceAlarms = await FavoriteShopsService.getFavoriteShops(user.user_id);
 
 		res.status(200).send(priceAlarms);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -65,7 +63,7 @@ favoriteshopsRouter.post('/', async (req: Request, res: Response) => {
 			res.status(500).send(JSON.stringify({success: false}));
 			return;
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -99,7 +97,7 @@ favoriteshopsRouter.delete('/:id', async (req: Request, res: Response) => {
 			res.status(500).send(JSON.stringify({success: false}));
 			return;
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/favorite_shops/favoriteshops.service.ts

@@ -19,13 +19,16 @@ dotenv.config();
  * @param vendor_id The id of the vendor to set as favorite
  */
 export const createFavoriteShop = async (user_id: number, vendor_id: number): Promise<boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		const res = await conn.query('INSERT INTO favorite_shops (vendor_id, user_id) VALUES (?, ?)', [vendor_id, user_id]);
 
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -34,7 +37,7 @@ export const createFavoriteShop = async (user_id: number, vendor_id: number): Pr
  * @param user_id
  */
 export const getFavoriteShops = async (user_id: number): Promise<FavoriteShops> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let shops = [];
 	try {
 		const rows = await conn.query('SELECT favorite_id, vendor_id, user_id FROM favorite_shops WHERE user_id = ?', user_id);
@@ -47,6 +50,9 @@ export const getFavoriteShops = async (user_id: number): Promise<FavoriteShops>
 		return shops;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -56,12 +62,15 @@ export const getFavoriteShops = async (user_id: number): Promise<FavoriteShops>
  * @param favorite_id The favorite shop to delete
  */
 export const deleteFavoriteShop = async (user_id: number, favorite_id: number): Promise<boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		const res = await conn.query('DELETE FROM favorite_shops WHERE favorite_id = ? AND user_id = ?', [favorite_id, user_id]);
 
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/manufacturers/manufacturers.router.ts

@@ -25,7 +25,7 @@ manufacturersRouter.get('/', async (req: Request, res: Response) => {
 		const manufacturers: Manufacturers = await ManufacturerService.findAll();
 
 		res.status(200).send(manufacturers);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -44,7 +44,7 @@ manufacturersRouter.get('/:id', async (req: Request, res: Response) => {
 		const manufacturer: Manufacturer = await ManufacturerService.find(id);
 
 		res.status(200).send(manufacturer);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -63,7 +63,7 @@ manufacturersRouter.get('/search/:term', async (req: Request, res: Response) =>
 		const manufacturer: Manufacturers = await ManufacturerService.findBySearchTerm(term);
 
 		res.status(200).send(manufacturer);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/manufacturers/manufacturers.service.ts

@@ -18,7 +18,7 @@ dotenv.config();
  * Fetches and returns all known manufacturers
  */
 export const findAll = async (): Promise<Manufacturers> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let manRows = [];
 	try {
 		const rows = await conn.query('SELECT manufacturer_id, name FROM manufacturers');
@@ -38,6 +38,9 @@ export const findAll = async (): Promise<Manufacturers> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return manRows;
@@ -48,7 +51,7 @@ export const findAll = async (): Promise<Manufacturers> => {
  * @param id The id of the manufacturer to fetch
  */
 export const find = async (id: number): Promise<Manufacturer> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let man: any;
 	try {
 		const rows = await conn.query('SELECT manufacturer_id, name FROM manufacturers WHERE manufacturer_id = ?', id);
@@ -60,6 +63,9 @@ export const find = async (id: number): Promise<Manufacturer> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return man;
@@ -70,7 +76,7 @@ export const find = async (id: number): Promise<Manufacturer> => {
  * @param term the term to match
  */
 export const findBySearchTerm = async (term: string): Promise<Manufacturers> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let manRows = [];
 	try {
 		term = '%' + term + '%';
@@ -83,6 +89,9 @@ export const findBySearchTerm = async (term: string): Promise<Manufacturers> =>
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return manRows;

src/models/betterzon/pricealarms/pricealarms.router.ts

@@ -4,8 +4,6 @@
 
 import express, {Request, Response} from 'express';
 import * as PriceAlarmsService from './pricealarms.service';
-import {PriceAlarm} from './pricealarm.interface';
-import {PriceAlarms} from './pricealarms.interface';
 import * as UserService from '../users/users.service';
 
 
@@ -31,7 +29,7 @@ pricealarmsRouter.get('/', async (req: Request, res: Response) => {
 		const priceAlarms = await PriceAlarmsService.getPriceAlarms(user.user_id);
 
 		res.status(200).send(priceAlarms);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -66,7 +64,7 @@ pricealarmsRouter.post('/', async (req: Request, res: Response) => {
 			res.status(500).send(JSON.stringify({success: false}));
 			return;
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -101,7 +99,7 @@ pricealarmsRouter.put('/', async (req: Request, res: Response) => {
 			res.status(500).send(JSON.stringify({success: false}));
 			return;
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -127,7 +125,7 @@ pricealarmsRouter.delete('/:id', async (req, res) => {
 			res.status(500).send(JSON.stringify({success: false}));
 			return;
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/pricealarms/pricealarms.service.ts

@@ -20,13 +20,16 @@ dotenv.config();
  * @param defined_price The defined price for the price alarm
  */
 export const createPriceAlarm = async (user_id: number, product_id: number, defined_price: number): Promise<boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		const res = await conn.query('INSERT INTO price_alarms (user_id, product_id, defined_price) VALUES (?, ?, ?)', [user_id, product_id, defined_price]);
 
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -35,7 +38,7 @@ export const createPriceAlarm = async (user_id: number, product_id: number, defi
  * @param user_id
  */
 export const getPriceAlarms = async (user_id: number): Promise<PriceAlarms> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceAlarms = [];
 	try {
 		const rows = await conn.query('SELECT alarm_id, user_id, product_id, defined_price FROM price_alarms WHERE user_id = ?', user_id);
@@ -48,6 +51,9 @@ export const getPriceAlarms = async (user_id: number): Promise<PriceAlarms> => {
 		return priceAlarms;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -58,13 +64,16 @@ export const getPriceAlarms = async (user_id: number): Promise<PriceAlarms> => {
  * @param defined_price The defined price for the price alarm
  */
 export const updatePriceAlarm = async (alarm_id: number, user_id: number, defined_price: number): Promise<boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		const res = await conn.query('UPDATE price_alarms SET defined_price = ? WHERE alarm_id = ? AND user_id = ?', [defined_price, alarm_id, user_id]);
 
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -74,12 +83,15 @@ export const updatePriceAlarm = async (alarm_id: number, user_id: number, define
  * @param user_id The id of the user that wants to update the price alarm
  */
 export const deletePriceAlarm = async (alarm_id: number, user_id: number): Promise<boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		const res = await conn.query('DELETE FROM price_alarms WHERE alarm_id = ? AND user_id = ?', [alarm_id, user_id]);
 
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/prices/prices.router.ts

@@ -39,7 +39,7 @@ pricesRouter.get('/', async (req: Request, res: Response) => {
 		}
 
 		res.status(200).send(prices);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -58,7 +58,7 @@ pricesRouter.get('/:id', async (req: Request, res: Response) => {
 		const price: Price = await PriceService.find(id);
 
 		res.status(200).send(price);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -77,7 +77,7 @@ pricesRouter.get('/bestDeals/:amount', async (req: Request, res: Response) => {
 		const prices: Prices = await PriceService.getBestDeals(amount);
 
 		res.status(200).send(prices);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -96,7 +96,7 @@ pricesRouter.get('/byProduct/list/:ids', async (req: Request, res: Response) =>
 		const prices: Prices = await PriceService.findListByProducts(productIds);
 
 		res.status(200).send(prices);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -123,7 +123,7 @@ pricesRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/prices/prices.service.ts

@@ -18,7 +18,7 @@ dotenv.config();
  * Fetches and returns all known prices
  */
 export const findAll = async (): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows = [];
 	try {
 		const rows = await conn.query('SELECT price_id, product_id, v.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE active_listing = true AND v.isActive = true');
@@ -44,6 +44,9 @@ export const findAll = async (): Promise<Prices> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
@@ -54,7 +57,7 @@ export const findAll = async (): Promise<Prices> => {
  * @param id The id of the price to fetch
  */
 export const find = async (id: number): Promise<Price> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let price: any;
 	try {
 		const rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE price_id = ? AND active_listing = true AND v.isActive = true', id);
@@ -66,6 +69,9 @@ export const find = async (id: number): Promise<Price> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return price;
@@ -76,7 +82,7 @@ export const find = async (id: number): Promise<Price> => {
  * @param product the product to fetch the prices for
  */
 export const findByProduct = async (product: number): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows = [];
 	try {
 		const rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND active_listing = true AND v.isActive = true', product);
@@ -88,6 +94,9 @@ export const findByProduct = async (product: number): Promise<Prices> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
@@ -102,7 +111,7 @@ export const findByProduct = async (product: number): Promise<Prices> => {
  * @param type The type of prices, e.g. newest / lowest
  */
 export const findByType = async (product: string, type: string): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows = [];
 	try {
 		let rows = [];
@@ -138,6 +147,9 @@ export const findByType = async (product: string, type: string): Promise<Prices>
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
@@ -153,7 +165,7 @@ export const findByType = async (product: string, type: string): Promise<Prices>
  * @param type The type of prices, e.g. newest / lowest
  */
 export const findByVendor = async (product: string, vendor: string, type: string): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows = [];
 	try {
 		let rows = [];
@@ -176,6 +188,9 @@ export const findByVendor = async (product: string, vendor: string, type: string
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
@@ -187,7 +202,7 @@ export const findByVendor = async (product: string, vendor: string, type: string
  * @param amount The amount of deals to return
  */
 export const getBestDeals = async (amount: number): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows = [];
 	try {
 		let allPrices: Record<number, Price[]> = {};
@@ -268,6 +283,9 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
 	} catch (err) {
 		console.log(err);
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
@@ -278,7 +296,7 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
  * @param productIds the ids of the products
  */
 export const findListByProducts = async (productIds: [number]): Promise<Prices> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let priceRows: Price[] = [];
 	try {
 		let allPrices: Record<number, Price[]> = {};
@@ -325,13 +343,16 @@ export const findListByProducts = async (productIds: [number]): Promise<Prices>
 		});
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return priceRows;
 };
 
 export const createPriceEntry = async (user_id: number, vendor_id: number, product_id: number, price_in_cents: number): Promise<Boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Check if the user is authorized to manage the requested vendor
 		const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
@@ -346,5 +367,8 @@ export const createPriceEntry = async (user_id: number, vendor_id: number, produ
 		return res.affectedRows === 1;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/products/products.router.ts

@@ -25,7 +25,7 @@ productsRouter.get('/', async (req: Request, res: Response) => {
 		const products: Products = await ProductService.findAll();
 
 		res.status(200).send(products);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -44,7 +44,7 @@ productsRouter.get('/:id', async (req: Request, res: Response) => {
 		const product: Product = await ProductService.find(id);
 
 		res.status(200).send(product);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -63,7 +63,7 @@ productsRouter.get('/search/:term', async (req: Request, res: Response) => {
 		const products: Products = await ProductService.findBySearchTerm(term);
 
 		res.status(200).send(products);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -82,7 +82,7 @@ productsRouter.get('/list/:ids', async (req: Request, res: Response) => {
 		const products: Products = await ProductService.findList(ids);
 
 		res.status(200).send(products);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -101,7 +101,7 @@ productsRouter.get('/vendor/:id', async (req: Request, res: Response) => {
 		const products: Products = await ProductService.findByVendor(id);
 
 		res.status(200).send(products);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -124,7 +124,7 @@ productsRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/products/products.service.ts

@@ -19,7 +19,7 @@ dotenv.config();
  * Fetches and returns all known products
  */
 export const findAll = async (): Promise<Products> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let prodRows = [];
 	try {
 		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');
@@ -59,6 +59,9 @@ export const findAll = async (): Promise<Products> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return prodRows;
@@ -69,7 +72,7 @@ export const findAll = async (): Promise<Products> => {
  * @param id The id of the product to fetch
  */
 export const find = async (id: number): Promise<Product> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let prod: any;
 	try {
 		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);
@@ -81,6 +84,9 @@ export const find = async (id: number): Promise<Product> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return prod;
@@ -91,7 +97,7 @@ export const find = async (id: number): Promise<Product> => {
  * @param term the term to match
  */
 export const findBySearchTerm = async (term: string): Promise<Products> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let prodRows = [];
 	try {
 		term = '%' + term + '%';
@@ -105,6 +111,9 @@ export const findBySearchTerm = async (term: string): Promise<Products> => {
 	} catch (err) {
 		console.log(err);
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return prodRows;
@@ -115,7 +124,7 @@ export const findBySearchTerm = async (term: string): Promise<Products> => {
  * @param ids The list of product ids to fetch the details for
  */
 export const findList = async (ids: [number]): Promise<Products> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let prodRows = [];
 	try {
 		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 IN (?)', [ids]);
@@ -127,6 +136,9 @@ export const findList = async (ids: [number]): Promise<Products> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return prodRows;
@@ -137,7 +149,7 @@ export const findList = async (ids: [number]): Promise<Products> => {
  * @param id The id of the vendor to fetch the products for
  */
 export const findByVendor = async (id: number): Promise<Products> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let prodRows = [];
 	try {
 		// Get the relevant product ids
@@ -159,6 +171,9 @@ export const findByVendor = async (id: number): Promise<Products> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return prodRows;

src/models/betterzon/users/users.router.ts

@@ -5,7 +5,6 @@
 import express, {Request, Response} from 'express';
 import * as UserService from './users.service';
 import {User} from './user.interface';
-import {Users} from './users.interface';
 import {Session} from './session.interface';
 
 
@@ -51,7 +50,7 @@ usersRouter.post('/register', async (req: Request, res: Response) => {
 			session_id: session.session_id,
 			session_key: session.session_key
 		});
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -84,7 +83,7 @@ usersRouter.post('/login', async (req: Request, res: Response) => {
 			session_id: session.session_id,
 			session_key: session.session_key
 		});
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -114,7 +113,7 @@ usersRouter.post('/checkSessionValid', async (req: Request, res: Response) => {
 
 		// Send the session details back to the user
 		res.status(200).send(user);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/users/users.service.ts

@@ -21,7 +21,7 @@ dotenv.config();
  * Creates a user record in the database, also creates a session. Returns the session if successful.
  */
 export const createUser = async (username: string, password: string, email: string, ip: string): Promise<Session> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Hash password and generate + hash session key
 		const pwHash = bcrypt.hashSync(password, 10);
@@ -63,9 +63,10 @@ export const createUser = async (username: string, password: string, email: stri
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
-
-    return {} as Session;
 };
 
 /**
@@ -73,7 +74,7 @@ export const createUser = async (username: string, password: string, email: stri
  * Returns the session information in case of a successful login
  */
 export const login = async (username: string, password: string, ip: string): Promise<Session> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Get saved password hash
 		const query = 'SELECT user_id, bcrypt_password_hash FROM users WHERE username = ?';
@@ -125,16 +126,17 @@ export const login = async (username: string, password: string, ip: string): Pro
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
-
-    return {} as Session;
 };
 
 /**
  * Checks if the given session information are valid and returns the user information if they are
  */
 export const checkSession = async (sessionId: string, sessionKey: string, ip: string): Promise<User> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Get saved session key hash
 		const query = 'SELECT user_id, session_key_hash, validUntil FROM sessions WHERE session_id = ?';
@@ -202,6 +204,9 @@ export const checkSession = async (sessionId: string, sessionKey: string, ip: st
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -234,7 +239,7 @@ export interface Status {
  * @param email The email to check
  */
 export const checkUsernameAndEmail = async (username: string, email: string): Promise<Status> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Create user entry in SQL
 		const usernameQuery = 'SELECT username FROM users WHERE username = ?';
@@ -282,5 +287,8 @@ export const checkUsernameAndEmail = async (username: string, email: string): Pr
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/betterzon/vendors/vendors.router.ts

@@ -26,7 +26,7 @@ vendorsRouter.get('/', async (req: Request, res: Response) => {
 		const vendors: Vendors = await VendorService.findAll();
 
 		res.status(200).send(vendors);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -44,7 +44,7 @@ vendorsRouter.get('/managed', async (req: Request, res: Response) => {
 		const vendors = await VendorService.getManagedShops(user.user_id);
 
 		res.status(200).send(vendors);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -63,7 +63,7 @@ vendorsRouter.get('/:id', async (req: Request, res: Response) => {
 		const vendor: Vendor = await VendorService.find(id);
 
 		res.status(200).send(vendor);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -82,7 +82,7 @@ vendorsRouter.get('/search/:term', async (req: Request, res: Response) => {
 		const vendors: Vendors = await VendorService.findBySearchTerm(term);
 
 		res.status(200).send(vendors);
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -108,7 +108,7 @@ vendorsRouter.put('/manage/deactivatelisting', async (req: Request, res: Respons
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -133,7 +133,7 @@ vendorsRouter.put('/manage/shop/deactivate/:id', async (req: Request, res: Respo
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}
@@ -158,7 +158,7 @@ vendorsRouter.put('/manage/shop/activate/:id', async (req: Request, res: Respons
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		console.log('Error handling a request: ' + e.message);
 		res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
 	}

src/models/betterzon/vendors/vendors.service.ts

@@ -18,7 +18,7 @@ dotenv.config();
  * Fetches and returns all known vendors
  */
 export const findAll = async (): Promise<Vendors> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let vendorRows = [];
 	try {
 		const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE isActive = true');
@@ -50,6 +50,9 @@ export const findAll = async (): Promise<Vendors> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return vendorRows;
@@ -60,7 +63,7 @@ export const findAll = async (): Promise<Vendors> => {
  * @param id The id of the vendor to fetch
  */
 export const find = async (id: number): Promise<Vendor> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let vendor: any;
 	try {
 		const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE vendor_id = ? AND isActive = true', id);
@@ -72,6 +75,9 @@ export const find = async (id: number): Promise<Vendor> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return vendor;
@@ -82,7 +88,7 @@ export const find = async (id: number): Promise<Vendor> => {
  * @param term the term to match
  */
 export const findBySearchTerm = async (term: string): Promise<Vendors> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let vendorRows = [];
 	try {
 		term = '%' + term + '%';
@@ -95,6 +101,9 @@ export const findBySearchTerm = async (term: string): Promise<Vendors> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return vendorRows;
@@ -105,7 +114,7 @@ export const findBySearchTerm = async (term: string): Promise<Vendors> => {
  * @param user The user to return the managed shops for
  */
 export const getManagedShops = async (user_id: number): Promise<Vendors> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	let vendorRows = [];
 	try {
 		const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE admin_id LIKE ?', user_id);
@@ -117,6 +126,9 @@ export const getManagedShops = async (user_id: number): Promise<Vendors> => {
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 
 	return vendorRows;
@@ -129,7 +141,7 @@ export const getManagedShops = async (user_id: number): Promise<Vendors> => {
  * @param product_id The product id of the product to deactivate the listing for
  */
 export const deactivateListing = async (user_id: number, vendor_id: number, product_id: number): Promise<Boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Check if the user is authorized to manage the requested vendor
 		const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
@@ -142,9 +154,10 @@ export const deactivateListing = async (user_id: number, vendor_id: number, prod
 		return status.affectedRows > 0;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
-
-    return false;
 };
 
 /**
@@ -154,7 +167,7 @@ export const deactivateListing = async (user_id: number, vendor_id: number, prod
  * @param isActive The new active state
  */
 export const setShopStatus = async (user_id: number, vendor_id: number, isActive: boolean): Promise<Boolean> => {
-    let conn = BetterzonDB.getConnection();
+	let conn = await BetterzonDB.getConnection();
 	try {
 		// Check if the user is authorized to manage the requested vendor
 		const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
@@ -168,7 +181,8 @@ export const setShopStatus = async (user_id: number, vendor_id: number, isActive
 		return status.affectedRows > 0;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
-
-    return false;
 };

src/models/climbing-route-rating/ClimbingRouteRating.db.ts

@@ -13,7 +13,7 @@ export namespace ClimbingRouteRatingDB {
 		connectionLimit: 5
 	});
 
-    export function getConnection() {
+	export const getConnection = async () => {
-        return pool;
+		return pool.getConnection();
-    }
+	};
 }

src/models/climbing-route-rating/ClimbingRouteRating.router.ts

@@ -23,7 +23,7 @@ crrRouter.use('/ratings', routeRatingsRouter);
 crrRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('Pluto Development Climbing Route Rating API Endpoint');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/climbing-route-rating/climbing_gyms/climbingGyms.router.ts

@@ -13,12 +13,49 @@ import {verifyCaptcha} from '../common/VerifyCaptcha';
  */
 export const climbingGymRouter = express.Router();
 
+/**
+ * @swagger
+ * /crr/gyms:
+ *      get:
+ *          summary: Retrieve all known climbing gyms
+ *          description: Returns all climbing gyms in a JSON list
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              200:
+ *                  description: Success
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: array
+ *                              items:
+ *                                  type: object
+ *                                  properties:
+ *                                      gym_id:
+ *                                          type: integer
+ *                                          description: The gym id
+ *                                          example: 1
+ *                                      name:
+ *                                          type: string
+ *                                          description: The gym name
+ *                                          example: DAV Kletterhalle
+ *                                      city:
+ *                                          type: string
+ *                                          description: The city where the gym is in
+ *                                          example: Karlsruhe
+ *                                      verified:
+ *                                          type: boolean
+ *                                          description: If the gym is verified
+ *                                          example: 1
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ */
 climbingGymRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		const gyms: ClimbingGym[] = await GymService.findAll();
 
 		res.status(200).send(gyms);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -29,11 +66,60 @@ climbingGymRouter.get('/', async (req: Request, res: Response) => {
 	}
 });
 
+/**
+ * @swagger
+ * /crr/gyms:
+ *      post:
+ *          summary: Create a new climbing gym
+ *          description: Creates a new climbing gym and returns the id of the created gym
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              201:
+ *                  description: Created
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: object
+ *                              properties:
+ *                                  gym_id:
+ *                                      type: integer
+ *                                      description: The gym id
+ *                                      example: 1
+ *              400:
+ *                  description: Wrong parameters, see response body for detailed information
+ *              403:
+ *                  description: Invalid captcha, please try again.
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: query
+ *                  name: name
+ *                  required: true
+ *                  description: The name of the gym
+ *                  schema:
+ *                      type: string
+ *                  example: DAV Kletterhalle
+ *              -   in: query
+ *                  name: city
+ *                  required: true
+ *                  description: The city where the gym is in
+ *                  schema:
+ *                      type: string
+ *                  example: Karlsruhe
+ *              -   in: query
+ *                  name: hcaptcha_response
+ *                  required: true
+ *                  description: The hCaptcha response key
+ *                  schema:
+ *                      type: string
+ *                  example: P0_ey[...]bVu
+ */
 climbingGymRouter.post('/', async (req: Request, res: Response) => {
 	try {
 		let name = req.query.name as string;
 		let city = req.query.city as string;
-        let captcha_token = req.query['h-captcha-response'] as string;
+		let captcha_token = req.query['hcaptcha_response'] as string;
 
 		if (!name || !city || !captcha_token) {
 			res.status(400).send({'message': 'Missing parameters'});
@@ -41,7 +127,8 @@ climbingGymRouter.post('/', async (req: Request, res: Response) => {
 		}
 
 		// Verify captcha
-        if (!await verifyCaptcha(captcha_token)) {
+		let success = await verifyCaptcha(captcha_token);
+		if (!success) {
 			res.status(403).send({'message': 'Invalid Captcha. Please try again.'});
 			return;
 		}
@@ -53,7 +140,7 @@ climbingGymRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/climbing-route-rating/climbing_gyms/climbingGyms.service.ts

@@ -6,11 +6,14 @@ import {ClimbingGym} from './ClimbingGym.interface';
  * @return Promise<ClimbingHall[]> The climbing halls
  */
 export const findAll = async (): Promise<ClimbingGym[]> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		return await conn.query('SELECT gym_id, name, city, verified FROM climbing_gyms');
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -21,13 +24,16 @@ export const findAll = async (): Promise<ClimbingGym[]> => {
  * @return number The id of the climbing hall
  */
 export const createGym = async (name: string, city: string): Promise<number> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 
 	try {
 		let res = await conn.query('INSERT INTO climbing_gyms (name, city) VALUES (?, ?) RETURNING gym_id', [name, city]);
 
-        return res[0].hall_id;
+		return res[0].gym_id;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/climbing-route-rating/climbing_routes/climbingRoutes.router.ts

@@ -13,12 +13,53 @@ import {verifyCaptcha} from '../common/VerifyCaptcha';
  */
 export const climbingRoutesRouter = express.Router();
 
+/**
+ * @swagger
+ * /crr/routes:
+ *      get:
+ *          summary: Retrieve all known climbing routes
+ *          description: Returns all climbing routes in a JSON list
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              200:
+ *                  description: Success
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: array
+ *                              items:
+ *                                  type: object
+ *                                  properties:
+ *                                      route_id:
+ *                                          type: string
+ *                                          description: The route id
+ *                                          example: duck-score-guide
+ *                                      gym_id:
+ *                                          type: integer
+ *                                          description: The id of the gym that the route belongs to
+ *                                          example: 1
+ *                                      name:
+ *                                          type: string
+ *                                          description: The route name
+ *                                          example: Mary Poppins
+ *                                      difficulty:
+ *                                          type: string
+ *                                          description: The difficulty of the route
+ *                                          example: 'DE: 5, FR: 5c'
+ *                                      route_setting_date:
+ *                                          type: datetime
+ *                                          description: The route setting date
+ *                                          example: 2022-01-07T23:00:00.000Z
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ */
 climbingRoutesRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		const routes: ClimbingRoute[] = await RouteService.findAll();
 
 		res.status(200).send(routes);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -29,6 +70,55 @@ climbingRoutesRouter.get('/', async (req: Request, res: Response) => {
 	}
 });
 
+/**
+ * @swagger
+ * /crr/routes/{id}:
+ *      get:
+ *          summary: Retrieve the route with the given id
+ *          description: Returns the climbing route with the given id if it exists
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              200:
+ *                  description: Success
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: array
+ *                              items:
+ *                                  type: object
+ *                                  properties:
+ *                                      route_id:
+ *                                          type: string
+ *                                          description: The route id
+ *                                          example: duck-score-guide
+ *                                      gym_id:
+ *                                          type: integer
+ *                                          description: The id of the gym that the route belongs to
+ *                                          example: 1
+ *                                      name:
+ *                                          type: string
+ *                                          description: The route name
+ *                                          example: Mary Poppins
+ *                                      difficulty:
+ *                                          type: string
+ *                                          description: The difficulty of the route
+ *                                          example: 'DE: 5, FR: 5c'
+ *                                      route_setting_date:
+ *                                          type: datetime
+ *                                          description: The route setting date
+ *                                          example: 2022-01-07T23:00:00.000Z
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: path
+ *                  name: id
+ *                  required: true
+ *                  description: The id of the route
+ *                  schema:
+ *                      type: string
+ *                  example: duck-score-guide
+ */
 climbingRoutesRouter.get('/:id', async (req: Request, res: Response) => {
 	try {
 		let route_id = req.params.id;
@@ -36,7 +126,7 @@ climbingRoutesRouter.get('/:id', async (req: Request, res: Response) => {
 		const route: ClimbingRoute = await RouteService.findById(route_id);
 
 		res.status(200).send(route);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -47,12 +137,68 @@ climbingRoutesRouter.get('/:id', async (req: Request, res: Response) => {
 	}
 });
 
+/**
+ * @swagger
+ * /crr/routes:
+ *      post:
+ *          summary: Create a new climbing route
+ *          description: Creates a new climbing route and returns the id of the created route
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              201:
+ *                  description: Created
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: object
+ *                              properties:
+ *                                  route_id:
+ *                                      type: string
+ *                                      description: The route id
+ *                                      example: duck-score-guide
+ *              400:
+ *                  description: Wrong parameters, see response body for detailed information
+ *              403:
+ *                  description: Invalid captcha, please try again.
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: query
+ *                  name: gym_id
+ *                  required: true
+ *                  description: The gym id of the gym that the route belongs to
+ *                  schema:
+ *                      type: integer
+ *                  example: 1
+ *              -   in: query
+ *                  name: name
+ *                  required: true
+ *                  description: The name of the route
+ *                  schema:
+ *                      type: string
+ *                  example: Mary Poppins
+ *              -   in: query
+ *                  name: difficulty
+ *                  required: true
+ *                  description: The difficulty of the route
+ *                  schema:
+ *                      type: string
+ *                  example: 'DE: 5, FR: 5c'
+ *              -   in: query
+ *                  name: hcaptcha_response
+ *                  required: true
+ *                  description: The hCaptcha response key
+ *                  schema:
+ *                      type: string
+ *                  example: P0_ey[...]bVu
+ */
 climbingRoutesRouter.post('/', async (req: Request, res: Response) => {
 	try {
 		let gym_id = Number(req.query.gym_id);
 		let name = req.query.name as string;
 		let difficulty = req.query.difficulty as string;
-        let captcha_token = req.query['h-captcha-response'] as string;
+		let captcha_token = req.query['hcaptcha_response'] as string;
 
 		if (isNaN(gym_id) || !name || !difficulty || !captcha_token) {
 			res.status(400).send({'message': 'Missing parameters'});
@@ -68,7 +214,7 @@ climbingRoutesRouter.post('/', async (req: Request, res: Response) => {
 		let route_id = await RouteService.createRoute(gym_id, name, difficulty);
 
 		res.status(201).send({'route_id': route_id});
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/climbing-route-rating/climbing_routes/climbingRoutes.service.ts

@@ -7,11 +7,14 @@ import random from 'random-words';
  * @return Promise<ClimbingRoute[]> The climbing routes
  */
 export const findAll = async (): Promise<ClimbingRoute[]> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		return await conn.query('SELECT route_id, gym_id, name, difficulty, route_setting_date FROM climbing_routes');
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -21,11 +24,14 @@ export const findAll = async (): Promise<ClimbingRoute[]> => {
  * @return Promise<ClimbingRoute> The climbing route
  */
 export const findById = async (route_id: string): Promise<ClimbingRoute> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		return await conn.query('SELECT route_id, gym_id, name, difficulty, route_setting_date FROM climbing_routes WHERE route_id = ?', route_id);
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -37,7 +43,7 @@ export const findById = async (route_id: string): Promise<ClimbingRoute> => {
  * @return string The id of the created route
  */
 export const createRoute = async (gym_id: number, name: string, difficulty: string): Promise<string> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 
 	// Generate route id
 	let route_id = '';
@@ -55,5 +61,8 @@ export const createRoute = async (gym_id: number, name: string, difficulty: stri
 		return route_id;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/climbing-route-rating/common/VerifyCaptcha.ts

@@ -1,22 +1,15 @@
 import * as dotenv from 'dotenv';
-import * as querystring from 'querystring';
+import * as querystring from 'qs';
 import axios from 'axios';
 
 dotenv.config();
 
 export const verifyCaptcha = async (captcha_token: string): Promise<boolean> => {
-    var postData = querystring.stringify({
+	let postData = querystring.stringify({
 		response: captcha_token,
 		secret: process.env.HCAPTCHA_SECRET
 	});
 
-    axios.post('https://hcaptcha.com/siteverify', postData)
+	let res = await axios.post('https://hcaptcha.com/siteverify', postData);
-        .then(res => {
 	return res.data.success;
-        })
-        .catch(error => {
-            throw(error);
-        });
-
-    return false;
 };

src/models/climbing-route-rating/route_comments/routeComments.router.ts

@@ -7,6 +7,51 @@ import {verifyCaptcha} from '../common/VerifyCaptcha';
 
 export const routeCommentsRouter = express.Router();
 
+/**
+ * @swagger
+ * /crr/comments/by/route/{id}:
+ *      get:
+ *          summary: Retrieve the comments for the given route
+ *          description: Returns all comments for the route with the specified id
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              200:
+ *                  description: Success
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: array
+ *                              items:
+ *                                  type: object
+ *                                  properties:
+ *                                      comment_id:
+ *                                          type: integer
+ *                                          description: The comment id
+ *                                          example: 2
+ *                                      route_id:
+ *                                          type: string
+ *                                          description: The id of the route that the comment belongs to
+ *                                          example: duck-score-guide
+ *                                      comment:
+ *                                          type: string
+ *                                          description: The comment text
+ *                                          example: Nice route! Was a lot of fun!
+ *                                      timestamp:
+ *                                          type: datetime
+ *                                          description: The time when the comment was sent
+ *                                          example: 2022-01-08T21:43:31.000Z
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: path
+ *                  name: id
+ *                  required: true
+ *                  description: The id of the route
+ *                  schema:
+ *                      type: string
+ *                  example: duck-score-guide
+ */
 routeCommentsRouter.get('/by/route/:id', async (req: Request, res: Response) => {
 	try {
 		let route_id = req.params.id;
@@ -14,7 +59,7 @@ routeCommentsRouter.get('/by/route/:id', async (req: Request, res: Response) =>
 		const comments: RouteComment[] = await CommentService.findByRoute(route_id);
 
 		res.status(200).send(comments);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -25,11 +70,60 @@ routeCommentsRouter.get('/by/route/:id', async (req: Request, res: Response) =>
 	}
 });
 
+/**
+ * @swagger
+ * /crr/comments:
+ *      post:
+ *          summary: Create a new comment
+ *          description: Creates a new comment and returns the id of the created comment
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              201:
+ *                  description: Created
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: object
+ *                              properties:
+ *                                  comment_id:
+ *                                      type: integer
+ *                                      description: The comment id
+ *                                      example: 1
+ *              400:
+ *                  description: Wrong parameters, see response body for detailed information
+ *              403:
+ *                  description: Invalid captcha, please try again.
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: query
+ *                  name: route_id
+ *                  required: true
+ *                  description: The id of the route to create the comment for
+ *                  schema:
+ *                      type: string
+ *                  example: duck-score-guide
+ *              -   in: query
+ *                  name: comment
+ *                  required: true
+ *                  description: The comment text
+ *                  schema:
+ *                      type: string
+ *                  example: Nice route! Was a lot of fun!
+ *              -   in: query
+ *                  name: hcaptcha_response
+ *                  required: true
+ *                  description: The hCaptcha response key
+ *                  schema:
+ *                      type: string
+ *                  example: P0_ey[...]bVu
+ */
 routeCommentsRouter.post('/', async (req: Request, res: Response) => {
 	try {
 		let route_id = req.query.route_id as string;
 		let comment = req.query.comment as string;
-        let captcha_token = req.query['h-captcha-response'] as string;
+		let captcha_token = req.query['hcaptcha_response'] as string;
 
 		if (!route_id || !comment || !captcha_token) {
 			res.status(400).send({'message': 'Missing parameters'});
@@ -49,7 +143,7 @@ routeCommentsRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/climbing-route-rating/route_comments/routeComments.service.ts

@@ -6,11 +6,14 @@ import {RouteComment} from './RouteComment.interface';
  * @return Promise<RouteComment[]> The comments
  */
 export const findByRoute = async (route_id: string): Promise<RouteComment[]> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		return await conn.query('SELECT comment_id, route_id, comment, timestamp FROM route_comments WHERE route_id = ?', route_id);
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -21,12 +24,15 @@ export const findByRoute = async (route_id: string): Promise<RouteComment[]> =>
  * @return number The id of the comment
  */
 export const createComment = async (route_id: string, comment: string): Promise<number> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		let res = await conn.query('INSERT INTO route_comments (route_id, comment) VALUES (?, ?) RETURNING comment_id', [route_id, comment]);
 
 		return res[0].comment_id;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/climbing-route-rating/route_ratings/routeRatings.router.ts

@@ -6,6 +6,37 @@ import {verifyCaptcha} from '../common/VerifyCaptcha';
 
 export const routeRatingsRouter = express.Router();
 
+/**
+ * @swagger
+ * /crr/ratings/by/route/{id}:
+ *      get:
+ *          summary: Retrieve the rating for the given route
+ *          description: Returns the medium amount of stars that the route got
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              200:
+ *                  description: Success
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: object
+ *                              properties:
+ *                                  rating:
+ *                                      type: float
+ *                                      description: The median amount of stars
+ *                                      example: 4.5
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: path
+ *                  name: id
+ *                  required: true
+ *                  description: The id of the route
+ *                  schema:
+ *                      type: string
+ *                  example: duck-score-guide
+ */
 routeRatingsRouter.get('/by/route/:id', async (req: Request, res: Response) => {
 	try {
 		let route_id = req.params.id;
@@ -13,7 +44,7 @@ routeRatingsRouter.get('/by/route/:id', async (req: Request, res: Response) => {
 		let rating = await RatingService.getStarsForRoute(route_id);
 
 		res.status(200).send({'rating': rating});
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -24,11 +55,60 @@ routeRatingsRouter.get('/by/route/:id', async (req: Request, res: Response) => {
 	}
 });
 
+/**
+ * @swagger
+ * /crr/ratings:
+ *      post:
+ *          summary: Create a new rating
+ *          description: Creates a new rating and returns the id of the created rating
+ *          tags:
+ *              - climbing-route-rating
+ *          responses:
+ *              201:
+ *                  description: Created
+ *                  content:
+ *                      application/json:
+ *                          schema:
+ *                              type: object
+ *                              properties:
+ *                                  rating_id:
+ *                                      type: integer
+ *                                      description: The rating id
+ *                                      example: 1
+ *              400:
+ *                  description: Wrong parameters, see response body for detailed information
+ *              403:
+ *                  description: Invalid captcha, please try again.
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: query
+ *                  name: route_id
+ *                  required: true
+ *                  description: The id of the route to create the rating for
+ *                  schema:
+ *                      type: string
+ *                  example: duck-score-guide
+ *              -   in: query
+ *                  name: stars
+ *                  required: true
+ *                  description: The amount of stars to give
+ *                  schema:
+ *                      type: integer
+ *                  example: 4
+ *              -   in: query
+ *                  name: hcaptcha_response
+ *                  required: true
+ *                  description: The hCaptcha response key
+ *                  schema:
+ *                      type: string
+ *                  example: P0_ey[...]bVu
+ */
 routeRatingsRouter.post('/', async (req: Request, res: Response) => {
 	try {
 		let route_id = req.query.route_id as string;
 		let stars = Number(req.query.stars);
-        let captcha_token = req.query['h-captcha-response'] as string;
+		let captcha_token = req.query['hcaptcha_response'] as string;
 
 		if (!route_id || isNaN(stars) || !captcha_token) {
 			res.status(400).send({'message': 'Missing parameters'});
@@ -48,7 +128,7 @@ routeRatingsRouter.post('/', async (req: Request, res: Response) => {
 		} else {
 			res.status(500).send({});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/climbing-route-rating/route_ratings/routeRatings.service.ts

@@ -7,11 +7,14 @@ import {RouteRating} from './RouteRating.interface';
  * @return Promise<RouteRating[]> The ratings
  */
 export const findByRoute = async (route_id: string): Promise<RouteRating[]> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		return await conn.query('SELECT rating_id, route_id, stars, timestamp FROM route_ratings WHERE route_id = ?', route_id);
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -41,12 +44,15 @@ export const getStarsForRoute = async (route_id: string): Promise<number> => {
  * @return number The id of the created rating
  */
 export const createRating = async (route_id: string, stars: number): Promise<number> => {
-    let conn = ClimbingRouteRatingDB.getConnection();
+	let conn = await ClimbingRouteRatingDB.getConnection();
 	try {
 		let res = await conn.query('INSERT INTO route_ratings (route_id, stars) VALUES (?, ?) RETURNING rating_id', [route_id, stars]);
 
 		return res[0].comment_id;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/dhbw-rapla-changes/DHBWRaPlaChanges.db.ts

@@ -13,7 +13,7 @@ export namespace RaPlaChangesDB {
 		connectionLimit: 5
 	});
 
-    export function getConnection() {
+	export const getConnection = async () => {
-        return pool;
+		return pool.getConnection();
-    }
+	};
 }

src/models/dhbw-rapla-changes/DHBWRaPlaChanges.router.ts

@@ -18,7 +18,7 @@ dhbwRaPlaChangesRouter.get('/', async (req: Request, res: Response) => {
 		let changes = await ChangeService.getChanges('TINF19B4', week);
 
 		res.status(200).send(changes);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -36,7 +36,7 @@ dhbwRaPlaChangesRouter.get('/:id', async (req: Request, res: Response) => {
 		let changes = await ChangeService.getEventById('TINF19B4', id);
 
 		res.status(200).send(changes);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/dhbw-rapla-changes/changes/changes.service.ts

@@ -6,7 +6,7 @@ import {RaPlaChangesDB} from '../DHBWRaPlaChanges.db';
 dotenv.config();
 
 export const getChanges = async (course: string, week: string): Promise<Event[]> => {
-    let conn = RaPlaChangesDB.getConnection();
+	let conn = await RaPlaChangesDB.getConnection();
 	try {
 		let relevantEventsRows = await conn.query('SELECT DISTINCT(entry_id) FROM rapla_changes WHERE new_start > ? AND new_start < DATE_ADD(?, INTERVAL 7 DAY)', [week, week]);
 
@@ -68,11 +68,14 @@ export const getChanges = async (course: string, week: string): Promise<Event[]>
 		return Array.from(eventsMap.values()) as Event[];
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
 export const getEventById = async (course: string, id: string): Promise<Event> => {
-    let conn = RaPlaChangesDB.getConnection();
+	let conn = await RaPlaChangesDB.getConnection();
 	try {
 		let rows = await conn.query('SELECT c.change_id, c.entry_id, c.change_timestamp, c.isDeleted, c.new_summary, c.new_description, c.new_start, c.new_last_modified, c.new_end, c.new_created, c.new_location, c.new_organizer, c.new_categories, e.uid FROM rapla_changes c LEFT OUTER JOIN rapla_entries e ON c.entry_id = e.entry_id WHERE e.uid = ? ORDER BY c.change_id', id);
 
@@ -123,5 +126,8 @@ export const getEventById = async (course: string, id: string): Promise<Event> =
 		return Array.from(eventsMap.values())[0];
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/dhbw-service/DHBWService.router.ts

@@ -17,7 +17,7 @@ dhbwServiceRouter.use('/generalInfo', generalInfoRouter);
 dhbwServiceRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('Pluto Development DHBW Service App API Endpoint');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/dhbw-service/generalInfo/GeneralInfo.router.ts

@@ -13,7 +13,7 @@ export const generalInfoRouter = express.Router();
 generalInfoRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('GET generalInfo v2.1');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -27,7 +27,7 @@ generalInfoRouter.get('/', async (req: Request, res: Response) => {
 generalInfoRouter.post('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('POST generalInfo v2.1');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/PartyPlaner.db.ts

@@ -20,10 +20,10 @@ export namespace PartyPlanerDB {
 		connectionLimit: 5
 	});
 
-    export function getConnection(useDev: boolean = false) {
+	export const getConnection = async (useDev: boolean = false) => {
 		if (useDev) {
-            return dev_pool;
+			return dev_pool.getConnection();
-        }
-        return prod_pool;
 		}
+		return prod_pool.getConnection();
+	};
 }

src/models/partyplaner/PartyPlaner.router.ts

@@ -29,7 +29,7 @@ partyPlanerRouter.use('/user', userRouter);
 partyPlanerRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('Pluto Development PartyPlaner API Endpoint V2');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/event/Event.router.ts

@@ -14,7 +14,6 @@ export const eventRouter = express.Router();
 
 eventRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 	try {
-        throw new Error('Test');
 		let userId = (req.query.userId ?? '').toString();
 		let sessionId = (req.query.sessionId ?? '').toString();
 		let sessionKey = (req.query.sessionKey ?? '').toString();
@@ -39,7 +38,7 @@ eventRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 		let data = await EventService.getEventData(useDev, userId);
 
 		res.status(200).send(data);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/event/event.service.ts

@@ -11,7 +11,7 @@ dotenv.config();
  * @return Event[] A list of events
  */
 export const getEventData = async (useDev: boolean, userId: string): Promise<Event[]> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let eventRows = await conn.query('SELECT event_id, name, description, takes_place_date, registration_until_date, max_participants FROM events WHERE creator_id = ?', userId);
 
@@ -69,5 +69,8 @@ export const getEventData = async (useDev: boolean, userId: string): Promise<Eve
 		return eventsList;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/partyplaner/friendship/Friendship.router.ts

@@ -38,7 +38,7 @@ friendshipRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 		let data = await FriendshipService.getFriendshipData(useDev, userId);
 
 		res.status(200).send(data);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/friendship/friendship.service.ts

@@ -11,7 +11,7 @@ dotenv.config();
  * @return Friendship[] A list of friends
  */
 export const getFriendshipData = async (useDev: boolean, userId: string): Promise<Friendship[]> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let rows = await conn.query('SELECT f.friendship_id, f.friend_id, u.first_name as friend_first_name, u.last_name as friend_last_name, u.username as friend_username FROM friendships f LEFT OUTER JOIN users u ON f.friend_id = u.user_id WHERE f.user_id = ?', userId);
 
@@ -30,5 +30,8 @@ export const getFriendshipData = async (useDev: boolean, userId: string): Promis
 		return friends;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/partyplaner/invite/Invite.router.ts

@@ -38,7 +38,7 @@ inviteRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 		let data = await InviteService.getInvitesData(useDev, userId);
 
 		res.status(200).send(data);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/invite/invite.service.ts

@@ -11,7 +11,7 @@ dotenv.config();
  * @return ReceivedInvite[] A list of invites
  */
 export const getInvitesData = async (useDev: boolean, userId: string): Promise<ReceivedInvite[]> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let rows = await conn.query('SELECT i.invite_id, i.valid_until, i.already_used, i.invite_key, e.name as event_name, e.description as event_description, e.takes_place_date, e.registration_until_date, e.max_participants, e.creator_id, u.first_name, u.last_name FROM invitations i LEFT OUTER JOIN events e ON e.event_id = i.event_id LEFT OUTER JOIN users u ON u.user_id = e.creator_id WHERE i.user_id = ?', userId);
 
@@ -37,5 +37,8 @@ export const getInvitesData = async (useDev: boolean, userId: string): Promise<R
 		return invites;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/partyplaner/login/Login.router.ts

@@ -58,7 +58,7 @@ loginRouter.post('/:isDevCall', async (req: Request, res: Response) => {
 		let session = await UserService.loginUser(useDev, username, email, password, userIP, deviceInfo);
 
 		res.status(200).send(session);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/register/Register.router.ts

@@ -77,7 +77,7 @@ registerRouter.post('/:isDevCall', async (req: Request, res: Response) => {
 		let session = await UserService.registerUser(useDev, username, email, firstName, lastName, password, userIP, deviceInfo);
 
 		res.status(201).send(session);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/session/Session.router.ts

@@ -38,7 +38,7 @@ sessionRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 		let data = await SessionService.getSessionData(useDev, userId);
 
 		res.status(200).send(data);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/session/session.service.ts

@@ -11,7 +11,7 @@ dotenv.config();
  * @return SessionData[] A list containing objects with the session data
  */
 export const getSessionData = async (useDev: boolean, userId: string): Promise<SessionData[]> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let rows = await conn.query('SELECT session_id, type, last_login, last_ip FROM sessions WHERE user_id = ? AND valid_until > NOW()', userId);
 
@@ -29,5 +29,8 @@ export const getSessionData = async (useDev: boolean, userId: string): Promise<S
 		return sessions;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/partyplaner/user/User.router.ts

@@ -37,7 +37,7 @@ userRouter.get('/:isDevCall', async (req: Request, res: Response) => {
 		let data = await UserService.getUserData(useDev, userId);
 
 		res.status(200).send(data);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/partyplaner/user/user.service.ts

@@ -15,7 +15,7 @@ dotenv.config();
  * @return UserData An object containing the user data
  */
 export const getUserData = async (useDev: boolean, userId: string): Promise<UserData> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let rows = await conn.query('SELECT username, email, first_name, last_Name, last_login, email_is_verified, is_premium_user FROM users WHERE user_id = ?', userId);
 
@@ -36,6 +36,9 @@ export const getUserData = async (useDev: boolean, userId: string): Promise<User
 		return user;
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -45,7 +48,7 @@ export const getUserData = async (useDev: boolean, userId: string): Promise<User
  * @return any An object with a list of usernames and emails
  */
 export const getExistingUsernamesAndEmails = async (useDev: boolean): Promise<any> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		const rows = await conn.query('SELECT username, email FROM users');
 
@@ -63,6 +66,9 @@ export const getExistingUsernamesAndEmails = async (useDev: boolean): Promise<an
 		};
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -78,7 +84,7 @@ export const getExistingUsernamesAndEmails = async (useDev: boolean): Promise<an
  * @param deviceInfo The user agent of the new user
  */
 export const registerUser = async (useDev: boolean, username: string, email: string, firstName: string, lastName: string, password: string, ip: string, deviceInfo: string): Promise<Session> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		const pwHash = bcrypt.hashSync(password, 10);
 		const sessionKey = Guid.create().toString();
@@ -125,6 +131,9 @@ export const registerUser = async (useDev: boolean, username: string, email: str
 		};
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -138,7 +147,7 @@ export const registerUser = async (useDev: boolean, username: string, email: str
  * @param deviceInfo The user agent of the new user
  */
 export const loginUser = async (useDev: boolean, username: string, email: string, password: string, ip: string, deviceInfo: string): Promise<Session> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let query_result;
 
@@ -197,6 +206,9 @@ export const loginUser = async (useDev: boolean, username: string, email: string
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
@@ -207,7 +219,7 @@ export const loginUser = async (useDev: boolean, username: string, email: string
  * @param email The email to check
  */
 export const checkUsernameAndEmail = async (useDev: boolean, username: string, email: string): Promise<Status> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		const usernameQuery = 'SELECT username FROM users WHERE username = ?';
 		const emailQuery = 'SELECT email FROM users WHERE email = ?';
@@ -254,11 +266,14 @@ export const checkUsernameAndEmail = async (useDev: boolean, username: string, e
 
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };
 
 export const checkSession = async (useDev: boolean, userId: string, sessionId: string, sessionKey: string): Promise<boolean> => {
-    let conn = PartyPlanerDB.getConnection(useDev);
+	let conn = await PartyPlanerDB.getConnection(useDev);
 	try {
 		let rows = await conn.query('SELECT session_key_hash FROM sessions WHERE user_id = ? AND session_id = ?', [userId, sessionId]);
 
@@ -270,5 +285,8 @@ export const checkSession = async (useDev: boolean, userId: string, sessionId: s
 		return bcrypt.compareSync(sessionKey, savedHash);
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

src/models/rapla-middleware/RaPlaMiddleware.router.ts

@@ -11,6 +11,59 @@ import * as icalgenerator from './icalgenerator/icalgenerator.service';
  */
 export const raPlaMiddlewareRouter = express.Router();
 
+/**
+ * @swagger
+ * /rapla-middleware:
+ *      get:
+ *          summary: Retrieve the adjusted RaPla .ics file
+ *          description: Downloads the current .ics file from DHBW servers, removes unwanted events and returns the file.
+ *              Required urls can be generated on https://rapla-middleware.p4ddy.com
+ *          tags:
+ *              - rapla-middleware
+ *          responses:
+ *              200:
+ *                  description: The .ics file
+ *              400:
+ *                  description: Wrong parameters, see response body for detailed information
+ *              500:
+ *                  description: A server error occurred. Please try again. If this issue persists, contact the admin.
+ *          parameters:
+ *              -   in: query
+ *                  name: user
+ *                  required: true
+ *                  description: The user from RaPla, can be taken directly from the RaPla link
+ *                  schema:
+ *                      type: string
+ *                  example: mueller
+ *              -   in: query
+ *                  name: file
+ *                  required: true
+ *                  description: The file from RaPla, can be taken directly from the RaPla link
+ *                  schema:
+ *                      type: string
+ *                  example: TINF19B4
+ *              -   in: query
+ *                  name: blockers
+ *                  required: false
+ *                  description: Whether to remove blockers from the .ics file
+ *                  schema:
+ *                      type: boolean
+ *                  example: 1
+ *              -   in: query
+ *                  name: wahl
+ *                  required: false
+ *                  description: The chosen elective module which is not to be filtered out
+ *                  schema:
+ *                      type: integer
+ *                  example: 0
+ *              -   in: query
+ *                  name: pflicht
+ *                  required: false
+ *                  description: The chosen profile module which is not to be filtered out
+ *                  schema:
+ *                      type: integer
+ *                  example: 2
+ */
 raPlaMiddlewareRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		let user = (req.query.user ?? '').toString();
@@ -33,7 +86,7 @@ raPlaMiddlewareRouter.get('/', async (req: Request, res: Response) => {
 
 		res.set({'Content-Disposition': 'attachment; filename=' + file + '.ics'});
 		res.status(200).send(resultingFile);
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/rapla-middleware/icalgenerator/icalgenerator.service.ts

@@ -153,7 +153,11 @@ export const removeElective = function (ical: iCalFile, chosenElective: string):
 		{name: 'Kryptographische Verfahren'},
 		{name: 'Robotik'},
 		{name: 'Web-Services'},
-        {name: 'High Performance Computing'}
+		{name: 'High Performance Computing'},
+		{name: 'Digitale Audiosignalverarbeitung'},
+		{name: 'Psychologische Grundlagen für Informatiker'},
+		{name: 'Erklärbare Künstliche Intelligenz'},
+		{name: 'Innovation Management'}
 	];
 	electiveToRemove.splice(parseInt(chosenElective), 1);
 

src/models/twitch-highlight-marker/HighlightMarker.db.ts

@@ -13,7 +13,7 @@ export namespace HighlightMarkerDB {
 		connectionLimit: 5
 	});
 
-    export function getConnection() {
+	export const getConnection = async () => {
-        return pool;
+		return pool.getConnection();
-    }
+	};
 }

src/models/twitch-highlight-marker/HighlightMarker.router.ts

@@ -16,7 +16,7 @@ highlightMarkerRouter.use('/addHighlight', addHighlightRouter);
 highlightMarkerRouter.get('/', async (req: Request, res: Response) => {
 	try {
 		res.status(200).send('Pluto Development Twitch Highlight Marker API Endpoint');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/twitch-highlight-marker/addHighlight/AddHighlight.router.ts

@@ -14,7 +14,7 @@ export const addHighlightRouter = express.Router();
 addHighlightRouter.get('/', (req: Request, res: Response) => {
 	try {
 		res.status(200).send('GET endpoint not defined.');
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({
@@ -45,7 +45,7 @@ addHighlightRouter.post('/', (req: Request, res: Response) => {
 			res.type('application/json');
 			res.status(200).send({'status': 'success', 'description': ''});
 		}
-    } catch (e) {
+	} catch (e: any) {
 		let errorGuid = Guid.create().toString();
 		logger.error('Error handling a request: ' + e.message, {reference: errorGuid});
 		res.status(500).send({

src/models/twitch-highlight-marker/addHighlight/addHighlights.service.ts

@@ -8,7 +8,7 @@ dotenv.config();
  * @param req_body The request body
  */
 export const createHighlightEntry = async (req_body: any) => {
-    let conn = HighlightMarkerDB.getConnection();
+	let conn = await HighlightMarkerDB.getConnection();
 	try {
 		const streamers = await conn.query('SELECT streamer_id FROM streamers WHERE username = ?', req_body.streamer);
 		let streamer_id: number = -1;
@@ -24,5 +24,8 @@ export const createHighlightEntry = async (req_body: any) => {
 		const rows = await conn.query('INSERT INTO highlights (streamer_id, stream_id, description, stream_timestamp, issuing_user, game) VALUES (?, ?, ?, ?, ?, ?)', params);
 	} catch (err) {
 		throw err;
+	} finally {
+		// Return connection
+		await conn.end();
 	}
 };

test/template.test.ts

@@ -0,0 +1,3 @@
+test('Test template', async () => {
+	expect(true).toBe(true);
+});