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Golang - How to Use Field Tags in the Definition of Struct Type Code Example

The code for How to Use Field Tags in the Definition of Struct Type

package main

import
(
	"encoding/json"
	"fmt"
)

type BookDetails struct
{
	BookName string `json:"name"`
	BookAuthor string `json: "author"`
	BookPrice int	 `json: "price"`
}

func main() {

	var b BookDetails

	b.BookName = "The Power of your subconscious mind"
	b.BookAuthor = "Joseph Murphy"
	b.BookPrice = 150

	fmt.Println(b)

	// returns []byte which is b in JSON form.
	jsonStr, err := json.Marshal(b)
	if err != nil {
		fmt.Println(err.Error())
	}

	fmt.Println(string(jsonStr))
}


/*
Output:
The Power of your subconscious mind Joseph Murphy 150}
{"name":"The Power of your subconscious mind","BookAuthor":"Joseph Murphy","BookPrice":150}
*/