Adding API endpoint for twitch highlights marker

app.ts

@@ -1,13 +1,26 @@
 import express from 'express';
 import * as http from 'http';
 import * as bodyparser from 'body-parser';
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+if (!process.env.PORT) {
+    console.log('No port');
+    process.exit(1);
+}
+
+const port: number = parseInt(process.env.PORT as string, 10);
 
 import {CommonRoutesConfig} from './src/common/common.routes.config';
+// DHBW Service
 import {GeneralInfoRoutes} from './src/models/dhbw-service/generalInfo.routes.config';
 
+// Twitch Highlight Marker
+import {AddHighlightRoutes} from './src/models/twitch-highlight-marker/addHighlight.routes.config';
+
 const app: express.Application = express();
 const server: http.Server = http.createServer(app);
-const port: Number = 443;
 const routes: Array<CommonRoutesConfig> = [];
 
 // here we are adding middleware to parse all incoming requests as JSON
@@ -16,6 +29,7 @@ app.use(bodyparser.json());
 // here we are adding the UserRoutes to our array,
 // after sending the Express.js application object to have the routes added to our app!
 routes.push(new GeneralInfoRoutes(app));
+routes.push(new AddHighlightRoutes(app));
 
 // this is a simple route to make sure everything is working properly
 app.get('/', (req: express.Request, res: express.Response) => {