Next.js TypeScript app fetch error with MongoDB – ECONNREFUSED ::1:59999

Next.js TypeScript app fetch error with MongoDB – ECONNREFUSED ::1:59999

If you are encountering the ECONNREFUSED ::1:59999 error when trying to fetch data from MongoDB in your Next.js TypeScript app, don’t worry, you’re not alone. This error typically occurs when the MongoDB connection is refused or not properly configured. In this blog post, we will explore a couple of solutions to help you resolve this issue.

Solution 1: Check MongoDB Connection Configuration

The first step is to ensure that your MongoDB connection configuration is correct. Make sure you have the correct host, port, and authentication details in your app’s configuration file. Here’s an example of a typical MongoDB connection configuration:

    const mongoose = require('mongoose');
    
    mongoose.connect('mongodb://localhost:27017/mydatabase', {
      useNewUrlParser: true,
      useUnifiedTopology: true,
      useFindAndModify: false,
      useCreateIndex: true
    });
  

Make sure to replace mongodb://localhost:27017/mydatabase with your actual MongoDB connection string. Once you have verified the configuration, restart your Next.js app and check if the error persists.

Solution 2: Allow MongoDB Connections from Localhost

In some cases, the error can be caused by MongoDB not allowing connections from localhost. To fix this, you need to modify the MongoDB configuration to allow connections from the loopback address. Follow these steps:

1. Open the MongoDB configuration file (usually located at /etc/mongod.conf).
2. Look for the bindIp configuration and change it to bindIp: 127.0.0.1.
3. Save the file and restart the MongoDB service.

After making these changes, try running your Next.js app again and see if the error is resolved.

Conclusion

The ECONNREFUSED ::1:59999 error in a Next.js TypeScript app when fetching data from MongoDB can be frustrating, but with the solutions provided above, you should be able to resolve the issue. Remember to double-check your MongoDB connection configuration and ensure that MongoDB allows connections from localhost. If the error persists, consider reaching out to the Next.js or MongoDB community for further assistance.

Happy coding!