Add configuration options for serialization

**Problem**
When working with routes, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

Start by locating the route handling and current error-message generation. Clarify which serialization options are required and how they should affect route errors, then identify the relevant tests or entry points. Done means the requested configuration options are supported and error messages are more descriptive, with tests covering the behavior.

Written by the indexing model from the issue text.