1. What is JSON handling in Go?

In backend systems, clients communicate with servers using JSON.

Go applications, however, work with strongly typed structs.

JSON handling is the process of converting JSON data into Go structs when receiving requests and converting structs back into JSON when sending responses.

2. Package used for JSON handling

Go provides built-in support for JSON through the standard library.

import"encoding/json"

This package handles:

• Parsing JSON into structs
• Converting structs into JSON
• Validating basic JSON structure

3. Why structs are required

Go avoids dynamic types for safety and performance.

Instead of working with raw JSON objects, Go maps JSON data to structs so:

• Data is type-safe
• Fields are predictable
• Compile-time errors catch bugs early

Only exported fields (capitalized) can participate in JSON conversion.