feat: rate limiter

package.json

@@ -40,6 +40,7 @@
     "env-var": "^7.4.1",
     "express": "^4.18.2",
     "express-async-errors": "^3.1.1",
+    "express-rate-limit": "^7.2.0",
     "http-status-codes": "^2.3.0",
     "jsonwebtoken": "^9.0.2",
     "langchain": "^0.1.21",

src/presentation/routes.ts

@@ -3,12 +3,21 @@ import { ChatbotService } from './chatbot/service';
 import { envs } from '../config/envs';
 import { ChatbotController } from './chatbot/controller';
 import { ChatbotRoutes } from './chatbot/routes';
+import rateLimiter from 'express-rate-limit';
 
 export class AppRoutes {
   static get routes(): Router {
     const router = Router();
 
-    router.use('/api/chat', ChatbotRoutes.routes);
+    const apiLimiter = rateLimiter({
+      windowMs: 60 * 1000,
+      max: 100,
+      message: {
+        msg: 'Máximo de peticiones alcanzado, reintentalo tras 1 minuto',
+      },
+    });
+
+    router.use('/api/chat', apiLimiter, ChatbotRoutes.routes);
 
     return router;
   }