JSON

In Go, the encoding/json package provides robust support for encoding (marshaling) and decoding (unmarshaling) JSON data.

package main

import (
    "encoding/json"
    "fmt"
    "log"
)

type Person struct {
    Name    string `json:"name"` // JSON field name
    Age     int    `json:"age"`
    Email   string `json:"email,omitempty"` // Omit if empty
}

func main() {
    person := Person{Name: "Alice", Age: 30, Email: ""}
    jsonData, err := json.Marshal(person)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println(string(jsonData)) // Output: {"name":"Alice","age":30}
}