Standardise and Implement Error Handling in Generated APL Code

[Bombardier-C-Kram]

Problem

Currently, the generated APL code lacks a consistent approach to error handling, which can make debugging and maintenance difficult.

Proposal

• Design and document a standard approach for error handling in all APL code generated by the OpenAPI tool.
• Ensure that all error scenarios (e.g., invalid input, failed HTTP calls, parsing errors, etc.) are handled gracefully and consistently.
• Update code generation logic to implement the new error handling pattern throughout.
• Add comments or documentation within the generated code to make error handling explicit to users.

Acceptance Criteria

• All generated APL code should follow a standardised error handling structure.
• Error scenarios are identified with useful messages or codes where appropriate.
• Examples and user documentation updated to reflect new error handling patterns.