name: mongodb-atlas-checker
description: Verify MongoDB Atlas setup and configuration for backend applications. Checks connection strings, environment variables, connection pooling, and ensures proper setup for Next.js and NestJS applications.
version: 1.0.0
tags:
- mongodb
- atlas
- database
- backend
- nestjs
- nextjs

MongoDB Atlas Checker

Verify MongoDB Atlas setup and configuration. Identifies configuration issues, missing environment variables, incorrect connection strings, and ensures proper database setup.

When to Use

• Verifying MongoDB Atlas backend setup
• Checking connection string configuration
• Validating environment variable setup
• Troubleshooting database connection issues
• Auditing database setup before deployment

Quick Checklist

1. Environment Variables

• [ ] MONGODB_URI exists (not hardcoded)
• [ ] Uses mongodb+srv:// protocol (required for Atlas)
• [ ] Includes database name
• [ ] Includes retryWrites=true&w=majority
• [ ] No credentials in .env.example

2. Connection String Format

mongodb+srv://<username>:<password>@<cluster-host>/<database>?retryWrites=true&w=majority

3. Driver Installation

• [ ] mongoose or mongodb package installed
• [ ] In dependencies (not devDependencies)

4. Connection Setup

• [ ] Singleton pattern (Next.js)
• [ ] MongooseModule.forRoot() (NestJS)
• [ ] Error handling implemented

5. Atlas Configuration

• [ ] IP whitelist configured
• [ ] Database user exists with permissions
• [ ] SSL/TLS enabled (default with mongodb+srv://)

Common Issues

Recommended Connection Options

{
  retryWrites: true,
  w: 'majority',
  maxPoolSize: 10,
  serverSelectionTimeoutMS: 5000,
  bufferCommands: false,
}

For detailed setup patterns, verification scripts, and complete examples: references/full-guide.md