UPDATE new features = redis in docker and Caching Mechanism

src/app.ts

@@ -1,11 +1,12 @@
 import { startWebSocketServer } from './websocket';
 import express from 'express';
+import { Request, Response, NextFunction } from 'express';
 import cors from 'cors';
 import http from 'http';
 import routes from './routes';
 import { getPort } from './config';
 import logger from './utils/logger';
-
+import redisClient from './utils/redisClient';
 const port = getPort();
 
 const app = express();
@@ -18,6 +19,43 @@ const corsOptions = {
 app.use(cors(corsOptions));
 app.use(express.json());
 
+app.use(async (req: Request, res: Response, next: NextFunction) => {
+  const cache = req.query.cache as string;
+
+  if (cache === '1') {
+    const cacheKey = req.originalUrl || req.url;
+
+    try {
+      const cachedData = await redisClient.get(cacheKey);
+
+      if (cachedData) {
+        logger.info(`Cache hit for ${cacheKey}`);
+        const jsonData = JSON.parse(cachedData);
+        return res.json(JSON.parse(jsonData));
+      } else {
+        const originalSend = res.send.bind(res);
+
+        res.send = (body: any) => {
+          const result = originalSend(body);
+
+          redisClient
+            .setEx(cacheKey, 3600, JSON.stringify(body))
+            .then(() => logger.info(`Cache set for ${cacheKey}`))
+            .catch((err) => logger.error(`Redis setEx error: ${err}`));
+
+          return result;
+        };
+
+        next();
+      }
+    } catch (error) {
+      logger.error(`Unexpected error: ${error}`);
+      next();
+    }
+  } else {
+    next();
+  }
+});
 app.use('/api', routes);
 app.get('/api', (_, res) => {
   res.status(200).json({ status: 'ok' });