Node.js Backend Integration

The React JS front-end for my small background-verification platform is already in place; what I need now is a clean, well-structured Node JS back-end that plugs straight into it. Core scope:

• Build user registration and login endpoints. I’m open on the exact authentication flow—email/password is fine, but if you have a smoother idea (JWT, social logins, 2FA), we can discuss it during setup.
• Create the verification logic: accept data sent from the front-end, run the necessary checks, and return a signed “verified” or “rejected” response that the UI can display.
• Expose concise REST routes (or GraphQL if you prefer and can justify the benefit) so the existing components only need minimal tweaks to consume them.
• Keep the code readable and well-commented, ideally using Express or a comparable lightweight framework.
• Documentation: short README explaining environment variables, install/run commands, and any third-party services we add later (I’m still deciding which ones, so recommend what fits best).

Once the API is wired up and tested end-to-end with the React app, the job is done. Quick project, but quality and clarity matter.