Question 301387 in Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript – MongoServerError: Invalid Namespace in Node.js App Using Mongoose with MongoDB Atlas

I’m developing a Node.js twitter-like application where I use Mongoose (version 8.0.2) to interact with a MongoDB Atlas database. However, I’ve encountered an error saying MongoServerError: Invalid namespace specified 'Twitter/.users'. This issue arises when I try to perform operations using my Mongoose models.

Here’s a brief overview of my setup:

  1. Mongoose User Model
 const mongoose = require('mongoose');

   const userSchema = new mongoose.Schema({
       username: String,
       password: String,
       email: String,
       registerDate: Date
   });

   module.exports = mongoose.model('User', userSchema);
  1. Database Connection
    I’m using the following connection string to connect to MongoDB Atlas:
mongoose.connect("mongodb+srv://:[password]@[cluster].mongodb.net/Twitter/?retryWrites=true&w=majority", { useNewUrlParser: true, useUnifiedTopology: true });

Despite following the standard practices, I’m getting the mentioned error. It’s puzzling because there’s no direct reference to .users in my code.

I’ve tried the following without success:

  1. Ensuring the database name is correct in the Atlas console.
  2. Double-checking the collection names and model definitions.
  3. Searching my entire codebase for any accidental references to .users.

I suspect it might be related to how Mongoose interacts with MongoDB Atlas, but I’m not sure what exactly is causing this issue or how to resolve it.

Has anyone encountered a similar issue or can suggest what might be going wrong?

Tags:

2

Answers


  1. 0

    The error message "MongoServerError: Invalid namespace specified ‘Twitter/.users’" indicates that there is an issue with the namespace being used in MongoDB. The namespace is typically a combination of the database name and the collection name.

    In your case, it seems that the issue is related to the database name ‘Twitter’. MongoDB Atlas clusters may have certain restrictions or configurations that can affect the namespace. Here are a few steps you can take to troubleshoot and resolve the issue:

    1. Check Database and Collection Names:
      Double-check the database name and collection names in both your Mongoose model and the MongoDB Atlas cluster. Ensure that they match exactly, including case sensitivity.

    2. Update Connection String:
      Modify your connection string to include the database name directly instead of appending it to the URL. Update your connection code as follows:

      mongoose.connect("mongodb+srv://[username]:[password]@[cluster].mongodb.net/Twitter", { useNewUrlParser: true, useUnifiedTopology: true });

      This ensures that the database name is not included in the URL and is specified separately.

    3. Check MongoDB Atlas Configuration:
      Log in to your MongoDB Atlas account and check the configuration settings for your cluster. Ensure that the database name is set correctly and matches the one you are using in your code.

    4. Use Connection Options:
      Consider adding the dbName option to your connection options:

      mongoose.connect("mongodb+srv://[username]:[password]@[cluster].mongodb.net/", {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    dbName: 'Twitter'
});

      This explicitly sets the database name in the connection options.

    5. Update Mongoose Version:
      Ensure that your Mongoose version is compatible with the MongoDB Atlas cluster. Sometimes, using an older or newer version of Mongoose might cause compatibility issues.

    After making these changes, restart your Node.js application and see if the issue persists. If the problem continues, consider checking the MongoDB Atlas documentation or contacting MongoDB support for assistance with any specific cluster configurations or restrictions that might be causing this issue.

    Login or Signup to reply.
  2. 0

    The problem is you have a trailing forward slash after your Twitter database name here:

    mongodb.net/Twitter/?retryWrites=true&w=majority

    Simply change your connection string to remove that forward slash:

    mongodb.net/Twitter?retryWrites=true&w=majority
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search