preventing-error-exposure

Transform Prisma errors into user-friendly messages by mapping P-codes to generic responses in your error handler, while logging full details server-side. This prevents exposing sensitive database structure and query information to clients.

Exposing raw database errors leaks implementation details, query structure, and schema information that attackers can exploit. Sanitization reduces attack surface while preserving debuggability through server-side logs.

Implement error handling middleware that captures the complete error—stack trace, P-code, query—server-side while sending only a sanitized message to the client. Use correlation IDs to link user-facing messages to detailed logs for support.

You can sanitize errors in try/catch blocks within individual handlers, but production-ready middleware provides consistent error transformation across all API endpoints, ensuring no sensitive details escape.

Create a P-code mapping table that translates each Prisma error code to a generic message. Enforce this mapping in centralized error handling so all responses follow the same sanitization rules.

No. Server-side logging captures full error details independently from client responses. Correlation IDs tie sanitized messages to complete logs, maintaining debuggability without exposing information to users.