added another API for db connection

server/src/config/db.ts

@@ -11,4 +11,26 @@ const connectDB  = async (): Promise<void> => {
     }
 }
 
-export default connectDB;
+// const readyState = (): string => {
+//     if (mongoose.connection.readyState === 0) {
+//         return "Disconnected"
+//     } else if (mongoose.connection.readyState === 1) {
+//         return "Connected"
+//     } else if (mongoose.connection.readyState === 2) {
+//         return "Connecting"
+//     } else if (mongoose.connection.readyState === 3) {
+//         return "Disconnecting"
+//     }
+// }
+
+const readyState = () : string => {
+    const states: Record<number, string> = {
+    0: 'Disconnected',
+    1: 'Connected',
+    2: 'Connecting',
+    3: 'Disconnecting',
+    };
+    return states[mongoose.connection.readyState] ?? 'Unknown';
+};
+
+export {connectDB, readyState}

server/src/server.ts

@@ -1,7 +1,7 @@
 import express, {Application, Request, Response} from 'express';
 import cors from 'cors';
 import  {ENV} from './config/env';
-import connectDB from './config/db';
+import {connectDB, readyState} from './config/db';
 
 const app: Application = express()
 
@@ -16,6 +16,16 @@ app.get('/health', (_req: Request, res: Response)=> {
     });
 });
 
+//for checking database connection
+
+app.get('/health/db', (req: Request, res: Response)=> {
+    res.json({
+        db_status: readyState(),
+        environment: ENV.NODE_ENV,
+        timestamp: new Date().toISOString()
+    })
+});
+
 
 //start Server