json objects

[Hamsa Hesham]

package main

import "encoding/json"

import "log"

import "fmt"

type book struct {

    ID        int

    title     string

    pubDate   string

    author    string

    genre     string

    publisher string

    language  string

}

func main(){

b := book{

    ID:    1,

    title:   "Standard",

    pubDate:      "Standard",

    author: "Second-rate",

    genre: "Standard",

    publisher: "Standard",

    language: "Standard",

}

var jsonData []byte

jsonData, err := json.Marshal(b)

if err != nil {

    log.Println(err)

}

fmt.Println(string(jsonData))

}

The output is {"ID":1}  .. why?!!

[Amit Saha]

Your struct fields will need to start with a capital letter to be exportable into JSON. Since ID is the only field here, you only see that in your output.

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[Charles Radke]

Try to export your struct fields. 

Sent from my iPhone

On Dec 25, 2020, at 6:30 PM, Amit Saha <amits...@gmail.com> wrote:



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[Roland Müller]

To have a JSon format with lower-case field names one has to (1) use field names beginning with upper case - to enable export and (2) use json annotations to force a field name.

Just have a look at the following example: 

https://gobyexample.com/json 

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