The mongoose fails to establish a connection with the Mongo Db Atlas

I am having issues with my simple node express app when trying to connect to MongoDB atlas. Despite deleting node_modules and re-downloading all packages, I am still encountering the same error.

The specific error message reads as follows: Cannot read properties of undefined (reading 'constructor').

My approach involves importing mongoose at the start of the page using this command:

import mongoose from 'mongoose'

Additionally, below is the snippet for my connection function:

const connectToMongo = async () => {
  try {
    await mongoose.connect(process.env.DATABASE_URL as string, { autoIndex: true, dbName: 'personal-blog' });
    console.log('connected to MongoDB');
  } catch (error) {
    console.log('error connection to MongoDB:', error.message);
  }
};

Answer №1

While MongoDB might overlook undefined fields, it is important to note that Mongoose operates differently. This is because Mongoose relies on a schema to guide its data handling and type casting processes.

Answer №2

Here is something I like to include:

autoIndex: true

And guess what? It actually works!

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