Building Microservices API in Go - Refactor Error Handling

The video tutorial focuses on refactoring error handling in a web application. It begins by discussing the importance of sending error responses in JSON format for consistency. The tutorial then demonstrates how to eliminate duplicate error codes using structs and JSON tags. A new function, 'write response', is introduced to handle response writing, promoting code reuse. The video concludes with testing the refactored code and performing cleanup tasks.

What new insight or understanding did you gain from this video?