Go JSON utility library

Install

$ go get github.com/Bhinneka/goson

Todo

• Add more utility

Hide specific fields

package main

import (
	"encoding/json"
	"fmt"
	"os"
	"time"

	"github.com/Bhinneka/goson"
)

// Bhinnekaners type
type Bhinnekaners struct {
	ID        string    `json:"id"`
	FirstName string    `json:"firstName"`
	LastName  string    `json:"lastName"`
	BirthDate time.Time `json:"birthDate"`
	Created   time.Time `json:"created"`
	CreatorIP string    `json:"creatorIp"`
}

func main() {
	wury := &Bhinnekaners{
		ID:        "001",
		FirstName: "Wuriyanto",
		LastName:  "Musobar",
		BirthDate: time.Now(),
		Created:   time.Now(),
		CreatorIP: "10.0.1.1",
	}

	b1, err := json.Marshal(wury)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	fmt.Println(string(b1))

    // hide specific field, eg: fields created and creatorIp
	result, err := goson.HideFields(*wury, "created", "creatorIp")

	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	b2, err := json.Marshal(result)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	fmt.Println(string(b2))
}

before hide

{
	"id": "001",
	"firstName": "Wuriyanto",
	"lastName": "Musobar",
	"birthDate": "2019-02-12T11:07:20.68801+07:00",
	"created": "2019-02-12T11:07:20.68801+07:00",
	"creatorIp": "10.0.1.1"
}

after hide

{
	"id": "001",
	"lastName": "Musobar",
	"firstName": "Wuriyanto",
	"birthDate": "2019-02-12T11:12:04.5998+07:00"
}

Make Zero Omitempty

// Child type
type Child struct {
	ChildA      string `json:"childA"`
	ChildB      string `json:"childB,omitempty"`
	ChildStruct struct {
		A int `json:"A,omitempty"`
		B int `json:"B"`
	} `json:"childStruct"`
}

// Bhinnekaners type
type Bhinnekaners struct {
	Name       string `json:"name"`
	Additional string `json:"additional,omitempty"`
	AddStruct  struct {
		Field1 string `json:"field1,omitempty"`
		Field2 string `json:"field2"`
	} `json:"addStruct"`
	AddChildPtr *Child `json:"child,omitempty"`
}

example := Bhinnekaners{
	Name:       "Agung DP",
	Additional: "test lagi",
	AddStruct: struct {
		Field1 string `json:"field1,omitempty"`
		Field2 string `json:"field2"`
	}{
		Field1: "Field 1",
		Field2: "Field 2",
	},
	AddChildPtr: &Child{
		ChildA: "Child A",
		ChildB: "Child B",
		ChildStruct: struct {
			A int `json:"A,omitempty"`
			B int `json:"B"`
		}{
			A: 453,
			B: 567,
		},
	},
}

json marshal before make zero field omitempty in example variable:

{
  "name": "Agung DP",
  "additional": "testing",
  "addStruct": {
    "field1": "Field 1",
    "field2": "Field 2"
  },
  "child": {
    "childA": "Child A",
    "childB": "Child B",
    "childStruct": {
      "A": 453,
      "B": 567
    }
  }
}

json marshal after make zero field omitempty in example variable:

{
  "name": "Agung DP",
  "addStruct": {
    "field2": "Field 2"
  },
  "child": {
    "childA": "Child A",
    "childStruct": {
      "B": 567
    }
  }
}