Error handling optimization for aptos-cli, aptos-client, aptos-common, create-dubhe

[Zombieliu]

Objective

Optimize the error handling mechanism of the aptos-cli, aptos-client, aptos-common, and create-dubhe modules to provide clearer and more consistent error return formats, enhancing the developer experience.

Implementation Steps

1. Review existing error handling methods:

   • Audit current error handling logic.
   • Identify common error types.
   • Count inconsistencies in error return formats.

2. Design a unified error handling scheme:

   • Define a standard error code system.
   • Design error message templates.
   • Standardize the display of error stack information.

3. Implement error handling optimization:

   • Unify error output format in aptos-cli.
   • Standardize error returns in aptos-client.
   • Optimize error handling in aptos-common.
   • Update error handling examples in the create-dubhe template.

4. Improve error documentation:

   • Write error code documentation.
   • Provide best practice guides for error handling.
   • Update related API documentation.

Acceptance Criteria

• All modules implement a unified error handling mechanism.
• Error messages are clear and understandable, containing necessary context information.
• Provide complete error code documentation.
• Error return format complies with REST API best practices.
• The new error handling mechanism is backward compatible.