Go: Convert Strings Array to Json Array String

Question

Trying to convert a strings array to a json string in Go. But all I get is an array of numbers.

What am I missing?

package main

import (
    "fmt"
    "encoding/json"
)

func main() {
    var urls = []string{
        "http://google.com",
        "http://facebook.com",
        "http://youtube.com",
        "http://yahoo.com",
        "http://twitter.com",
        "http://live.com",
    }

    urlsJson, _ := json.Marshal(urls)
    fmt.Println(urlsJson)
}

Code on Go Playground: http://play.golang.org/p/z-OUhvK7Kk

Jeff Mercado · Accepted Answer · 2014-07-11 03:27:47Z

16

By marshaling the object, you are getting the encoding (bytes) that represents the JSON string. If you want the string, you have to convert those bytes to a string.

fmt.Println(string(urlsJson))

answered Jul 11, 2014 at 3:27

Jeff Mercado

136k34 gold badges267 silver badges282 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

fabmilo · Accepted Answer · 2014-07-11 17:46:42Z

1

Another way is to use directly os.Stdout.Write(urlsJson)

answered Jul 11, 2014 at 17:46

fabmilo

48.5k16 gold badges108 silver badges123 bronze badges

Comments

Zombo · Accepted Answer · 2021-07-03 17:34:52Z

0

You could use stdout output encoder:

package main

import (
   "encoding/json"
   "os"
)

func main() {
   json.NewEncoder(os.Stdout).Encode(urls)
}

or a string builder:

package main

import (
   "encoding/json"
   "strings"
)

func main() {
   b := new(strings.Builder)
   json.NewEncoder(b).Encode(urls)
   print(b.String())
}

https://golang.org/pkg/encoding/json#NewEncoder

answered Jul 3, 2021 at 17:34

Zombo

1

Collectives™ on Stack Overflow

Go: Convert Strings Array to Json Array String

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related