Lambda timeout after 10s both in serverless offline and online - node.js

Question

I am new to lambda, mongodb and nodejs and I'm trying to access a mongodb database follwoing this tutorial: [pretty nice tutorial][1] . This is my second attempt at connecting to mongodb and after spending hours setting things up I run into an unsurmountable wall and none of all the answers on stack overflow have helped. Any help will be greatly appreciated.
I have inserted console.log instructions and they both are executed so the timout happens after connecting to the database, but after that I don't know what is executed. I have also set up VPC properly in AWS Lambda so I have no idea why this is timing out. ( See edit below) It might be worth mentioning that I have never been able to get past this stage: of all the things I have tried there is always a timeout error.
I have a handler.js file which, among other functions, has this one:
'use strict';
require('dotenv').config({ path: './variables.env' });
const connectToDatabase = require('./db');
const Note = require('./models/Note');
module.exports.create = (event, context, callback) => {
context.callbackWaitsForEmptyEventLoop = false;
console.log("here1");
connectToDatabase()
.then(() => {
Note.create(JSON.parse(event.body))
.then(note => callback(null, {
statusCode: 200,
body: JSON.stringify(note)
}))
.catch(err => callback(null, {
statusCode: err.statusCode || 500,
headers: { 'Content-Type': 'text/plain' },
body: 'Could not create the note.'
}));
});
console.log("here2");
};
I also have a db.js file and a Note.js file as instructed in the tutorial ( here posted respectively )
//file db.js
const mongoose = require('mongoose');
mongoose.Promise = global.Promise;
let isConnected;
module.exports = connectToDatabase = () => {
if (isConnected) {
console.log('=> using existing database connection');
return Promise.resolve();
}
console.log('=> using new database connection');
return mongoose.connect(process.env.DB)
.then(db => {
isConnected = db.connections[0].readyState;
});
};
//file Note.js
const mongoose = require('mongoose');
const NoteSchema = new mongoose.Schema({
title: String,
description: String
});
module.exports = mongoose.model('Note', NoteSchema);
Both serverless offline and serverless online give me a timeout error:
Serverless offline:
here1
=> using new database connection
here2
✖ Lambda timeout.
Serverless online:
START RequestId: f75c6e23-84e2-485c-8fb4-065a95bbbb9b Version: $LATEST
2022-10-25T11:53:44.171Z f75c6e23-84e2-485c-8fb4-065a95bbbb9b INFO here1
2022-10-25T11:53:44.171Z f75c6e23-84e2-485c-8fb4-065a95bbbb9b INFO => using new database connection
2022-10-25T11:53:44.311Z f75c6e23-84e2-485c-8fb4-065a95bbbb9b INFO here2
END RequestId: f75c6e23-84e2-485c-8fb4-065a95bbbb9b
REPORT RequestId: f75c6e23-84e2-485c-8fb4-065a95bbbb9b Duration: 10013.48 ms Billed Duration: 10000 ms Memory Size: 128 MB Max Memory Used: 100 MB Init Duration: 864.37 ms
2022-10-25T11:53:54.174Z f75c6e23-84e2-485c-8fb4-065a95bbbb9b Task timed out after 10.01 seconds
I am sending this JSON POST request through Insomnia:
{
"title":"some title",
"description": "some description"
}
After changing the timeout time to 5 mins, I am getting an error related to the connection to mongo saying I should whitelist my IP. It is whitelisted but I will investigate.
[1]: https://medium.com/hackernoon/building-a-serverless-rest-api-with-node-js-and-mongodb-2e0ed0638f47