[ENHANCEMENT]: Implement Global Error Handling Middleware

[affanraza84]

Current behavior

Unhandled exceptions rely on Express's default error handling behavior.

Impact

• Inconsistent API error responses.
• Potential exposure of stack traces.
• Poor debugging and observability.
• Difficult error management across routes.

Proposed improvement

Register a global error handler after all routes and middleware.

app.use((err, req, res, next) => {
  console.error(err.stack);

  res.status(err.status || 500).json({
    success: false,
    message: err.message || "Internal Server Error",
  });
});

Additionally, route handlers should forward errors using next(error).

Priority

High (affects many users)

Component affected

iOS

[affanraza84]

Hey @Nsanjayboruds I would like to work on this issue as a contributor of GSSoC'26

[tanishka-kuwar]

Hi @Nsanjayboruds,

I would like to work on this issue as a contributor for GSSoC'26. Could you please assign it to me?

I can implement the global error handling middleware as proposed to ensure consistent API responses and prevent stack trace leaks.