Marshaling JSON in Go with structs | Smart Go

The video tutorial introduces various features of the Go language through a practical task. It covers using Go's native HTTP package to make web requests, handling JSON data, and error management. The tutorial explains the use of structs, annotations, and the defer keyword in Go. It also discusses common patterns in error handling and the potential for changes in future Go versions. The video concludes with a recap of the key concepts covered, including data serialization, resource cleanup, and struct mapping.

How does the program ensure that the response object is cleaned up after use?

What role do annotations play in the struct declaration for JSON unmarshalling?

Summarize the key points covered in the text regarding structs in GO.