Encountering connectivity issues with MongoDB client and struggling to insert data while utilizing promises

Currently, I am experimenting with nodeJS and encountering an error when trying to establish a connection to the MongoDB Client. I have implemented promises for improved readability but am facing issues connecting. The code involves connecting to the database, inserting a document, retrieving entries, and then cleaning the database by dropping the collection. However, the connection is failing, and I'm unsure of the mistake in my approach. Here is the snippet of my code:

// The code snippet goes here
// More code goes here

Upon attempting to connect to the server, the error message I receive is as follows:

// The error details go here
// More error information here

The expected output should resemble the image linked below:

Image Description

Answer №1

Dealing with a similar problem, I managed to resolve it by switching (err, client) around in the initial .then method

Erroneous Code: MongoClient.connect(url).then((err, client)

Corrected Code: MongoClient.connect(url).then((client, err)

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