Go utils

Some of frequently used utils.

---

intro

file	function
id_generator	GUID, UUID
json	StructToJson, JsonToStruct
log	CheckAndPrintError
signer	HmacSha256Base64Signer, Md5Signer
string	Trim, Replace, Contains, ToArray, ToInt, ToInt64, ToFloat, Substring, Append, StringBuilder, Clear, Remove,RemoveLast
string_builder	StringBuilder,Append,Replace,RemoveLast
interface_builder	InterfaceBuilder, Append, Clear
time	Millisecond, EpochTime, IsoTime, UTC, StringToTime, TimeToString
other,utils_test	IIIOperator, symbol, test

Installation

$ go get -u github.com/Dzeqkon/goutils

Usage

More info see: utils_test.go

import (
	tsgutils "github.com/Dzeqkon/go-utils"
)

	str1 := tsgutils.NewString("13990521234")
	str2 := tsgutils.NewString("14")
	str3 := str1.Substring(0, 2).Append(str2).AppendString("520")
	println(str1.ToString())
	println(str2.ToString())
	println(str3.ToString())

	builder := NewStringBuilder()
	builder.Append("a").Append("b").Append("c")
	str := builder.ToString()

func (user *User) Rows2struct(rows *mysql.Rows) {
	var users []User
	builder := tsgutils.NewInterfaceBuilder()
	for rows.Next() {
		builder.Clear()
		builder.Append(&user.Host).Append(&user.User)
		builder.Append(&user.AuthenticationString)
		err := rows.Scan(builder.ToInterfaces()...)
		tsgutils.CheckAndPrintError("MySQL query rows scan error", err)
		users = append(users, *user)
	}
	if rows != nil {
		defer rows.Close()
	}
	user.Users = users
}