Resolvendo issues de manutenibilidade

src/index.ts

@@ -1,14 +1,28 @@
 import express, { Express, Request, Response } from 'express';
 import dotenv from 'dotenv';
-import cors from 'cors'
-import httpProxy from 'express-http-proxy'
+import cors from 'cors';
+import httpProxy from 'express-http-proxy';
 import { getHost, getUrl } from './utils';
 
 dotenv.config();
 
 const app: Express = express();
+app.disable('x-powered-by');
 
-app.use(cors())
+const allowedOrigins = ['http://your-frontend-domain.com', 'http://another-allowed-domain.com'];
+
+const corsOptions = {
+    origin: (origin: string | undefined, callback: (err: Error | null, allow?: boolean) => void) => {
+        if (!origin || allowedOrigins.indexOf(origin) !== -1) {
+            callback(null, true);
+        } else {
+            callback(new Error('Not allowed by CORS'));
+        }
+    },
+    optionsSuccessStatus: 200,
+};
+
+app.use(cors(corsOptions));
 
 const port = 8888;
 const host = "0.0.0.0";
@@ -21,8 +35,7 @@ app.use('/*', httpProxy(getHost, {
     proxyReqPathResolver(req) {
         return getUrl(req);
     }
-}))
-
+}));
 
 app.listen(port, host, () => {
     console.log(`⚡️[server]: Server is running at http://${host}:${port}`);

src/utils.ts

@@ -14,22 +14,25 @@ const getUrl = (req: Request) => {
 
     const queryString = parts[1];
     const updatedPath = parts[0];
-    return baseUrl + updatedPath + (queryString ? '?' + queryString : '')
+    return baseUrl + updatedPath + (queryString ? '?' + queryString : '');
 }
 
+const videoServiceRegex = /\/videoservice/;
+const userServiceRegex = /\/userservice/;
+const adminServiceRegex = /\/adminservice/;
+
 const getHost = (req: Request) => {
-    if (req.baseUrl.match('/videoservice')) {
+    if (videoServiceRegex.exec(req.baseUrl)) {
         console.log("VIDEO CALLED");
         return VIDEO_API_URL;
-    } else if (req.baseUrl.match('/userservice')) {
+    } else if (userServiceRegex.exec(req.baseUrl)) {
         console.log("USER CALLED");
         return USER_API_URL;
-    } else if (req.baseUrl.match('/adminservice')) {
+    } else if (adminServiceRegex.exec(req.baseUrl)) {
         console.log("ADMIN CALLED");
         return ADMIN_API_URL;
-    }    
-    else {
-        return ''
+    } else {
+        return '';
     }
 }