Can't run Backend Redbus

[airlangga2377]

MongoParseError: options usecreateindex, usefindandmodify are not supported
at parseOptions (C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongodb\lib\connection_string.js:290:15)
at new MongoClient (C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongodb\lib\mongo_client.js:64:63)
at C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\connection.js:801:16
at new Promise ()
at NativeConnection.Connection.openUri (C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\connection.js:798:19)
at C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\index.js:380:10
at C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\helpers\promiseOrCallback.js:32:5
at new Promise ()
at promiseOrCallback (C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\helpers\promiseOrCallback.js:31:10)
at Mongoose._promiseOrCallback (C:\Users\Intel\Downloads\redbus\back-end-redbus\node_modules\mongoose\lib\index.js:1225:10) {
[Symbol(errorLabels)]: Set(0) {}
}

[rohity20]

We can modify the code for connecting the server with the backend i.e connect function as :
const connect = () => {
const db = mongoose.connection;

db.on('error', (error) => {
console.error('MongoDB connection error:', error);
});

db.once('open', () => {
console.log('MongoDB connection established.');
});

return mongoose.connect(
"mongodb+srv://redbus_db_user_1:[email protected]/redbus?retryWrites=true&w=majority",
{
useCreateIndex: true,
useNewUrlParser: true,
useUnifiedTopology: true,
useFindAndModify: false,
}
);
};
These changes allow you to handle MongoDB connection events correctly and avoid the errors related to listening to events on the Db class.