Express+Mongoose - unique option not working

[Kushagra_Kesav]

Hello @Nir_Gluzman,

Welcome to the MongoDB Community forums

@Nir_Gluzman

For some reason, unique does not enforce uniqueness on the property and I do not get a duplicate key error.
I am using create() function to create a new document.

I tested your Git repository code base, and it worked perfectly fine for me. I received the following error in Postman when I tried to insert a document with the same email ID:

{ "error": "E11000 duplicate key error collection: test.blogs index: email_1 dup key: { email: \"mike@gmail.com\" }" }

To better understand the issue, could you share the workflow you followed to insert the document in MongoDB?

@Nir_Gluzman

This subject has been discussed heavily in the past.

Could you please elaborate on what you meant by the above statement?

Best,
Kushagra