Resolve React-MongoDB Connection

My MongoDB Atlas cluster connects instantly through Compass, yet the same connection string refuses to cooperate inside my React project. The URI is tucked away in an environment variable, but at runtime I receive a generic “connection string” error and no data appears.

I need someone to:

• review how I’m importing the .env values and verify the string syntax
• confirm the driver / library I’m using from the React side (or its Node-based API layer) is configured correctly for an Atlas URI
• diagnose any authentication, whitelisting, or network nuances that Compass might mask
• deliver a working example and a brief explanation so I can replicate the fix across environments

Once the project builds and fetches data from Atlas without throwing the connection string error, we’re done. If a small refactor or a tweak to the Atlas settings is required, please include it in the solution.