jsontime

A json iterator extension that support custom time format.

Install

go get github.com/liamylian/jsontime/v2

or

go mod edit -require=github.com/liamylian/jsontime/v2@v2.0.0

Usage

100% compatibility with standard lib

Replace

import "encoding/json"

json.Marshal(&data)
json.Unmarshal(input, &data)

with

import jsontime "github.com/liamylian/jsontime/v2/v2"

var json = jsontime.ConfigWithCustomTimeFormat

json.Marshal(&data)
json.Unmarshal(input, &data)

Example

package main

import (
	"fmt"
	"time"
	
	jsontime "github.com/liamylian/jsontime/v2/v2"
)

var json = jsontime.ConfigWithCustomTimeFormat

func init() {
	jsontime.SetDefaultTimeFormat(time.RFC3339, time.Local)
}

type Book struct {
	Id          int        `json:"id"`
	PublishedAt time.Time  `json:"published_at"`
	UpdatedAt   *time.Time `json:"updated_at"`
	CreatedAt   time.Time  `json:"created_at"`
}

func main() {
	book := Book{
		Id:          1,
		PublishedAt: time.Now(),
		UpdatedAt:   nil,
		CreatedAt:   time.Now(),
	}

	bytes, _ := json.Marshal(book)
	fmt.Printf("%s", bytes)
}

Advanced Usage

var json = jsontime.ConfigWithCustomTimeFormat
timeZoneShanghai, _ := time.LoadLocation("Asia/Shanghai")
jsontime.AddTimeFormatAlias("sql_datetime", "2006-01-02 15:04:05")
jsontime.AddLocaleAlias("shanghai", timeZoneShanghai)

type Book struct {
	Id          int        `json:"id"`
	PublishedAt time.Time  `json:"published_at" time_format:"sql_datetime" time_location:"shanghai"`
	UpdatedAt   *time.Time `json:"updated_at" time_format:"sql_datetime" time_location:"shanghai"`
	CreatedAt   time.Time  `json:"created_at" time_format:"sql_datetime" time_location:"shanghai"`
}

bytes, _ := json.Marshal(book)

Notice

Because there are two maps in the package, that is not thread safe. So it is suggested to call AddTimeFormatAlias, AddLocaleAlias only once, right before calling Marshal and UnMarshal. Or you should make sure not to call them at the same time (writing and reading map at the same time will panic).