utils

README

Golang Utilities

Installation

go get git.verzth.work/go/utils

Available Utils

Take a look on demo source.

package mypackage

import (
	"fmt"
	"git.verzth.work/go/utils"
)

func main() {
	fmt.Printf("RandString: %v\n", utils.RandString(20))
	fmt.Printf("RandStringWithCharset: %v\n", utils.RandStringWithCharset(20,"abc123efg456"))
	fmt.Printf("RandStringLower: %v\n", utils.RandStringLower(20))
	fmt.Printf("RandomHex: %v\n",utils.RandomHex(16))
	fmt.Printf("RandomHexUpper: %v\n",utils.RandomHexUpper(16))
	ranString := utils.RandStringUpper(10)
	fmt.Printf("RandStringUpper: %v\n",ranString) // 'ea10a9c919'

	fmt.Printf("Substring: %v\n", utils.Substring(ranString,2)) // '10a9c919'
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,1,8)) // 'a10a9c9'
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,6,2)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,10,15)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,-1,5)) // ''
	fmt.Printf("Substring: %v\n", utils.Substring(ranString,5,10)) // '9c919'

	arr := []int{ 1,2,3,4,5 }
	fmt.Printf("Array Before: %v\n", arr)
	utils.Slice.RemoveAt(&arr, 3) // Remove slice at index
	fmt.Printf("Array After 1: %v\n", arr)
	utils.Slice.AddTo(&arr, 4, 3)  // Add data to index 3
	fmt.Printf("Array After 2: %v\n", arr)
	utils.Slice.AddTo(&arr, 25, 1) // Add data to index 1
	fmt.Printf("Array After 3: %v\n", arr)
	utils.Slice.AddTo(&arr, 100) // Add data without specify index, will be added to last index
	fmt.Printf("Array After 4: %v\n", arr)
	utils.Slice.AddTo(&arr, -5) // Add data with minus index, will be added to first index which is treated as 0
	fmt.Printf("Array After 5: %v\n", arr)
	i := utils.Slice.Exist(&arr, 9)
	fmt.Println("Exist",i)
	j := utils.Slice.Exist(&arr, 100)
	fmt.Println("Exist",j)

	utils.FileMove("/root/project/filename","/root/project/newname", os.ModePerm) // Move file from path to path
	utils.FileMove("/root/project/oldfolder/","/root/project/newfolder/", os.ModePerm, "filename") // Move file from to new location with same name
	utils.FileMove("/root/project/oldfolder/","/root/project/newfolder/", os.ModePerm, "filename", "newname") // Move file from to new location with new name

	arrDuplicate := []int{1,0,0,2,3,2,4,5,6,7,4,4,7,4,7,7,7,15}
	fmt.Println(arrDuplicate)
	utils.Slice.Uniquify(&arrDuplicate)
	fmt.Println(arrDuplicate)

	objArr := []map[string]int{
		{"id": 4, "num": 2}, {"id": 3, "num": 9}, {"id": 0, "num": 1}, {"id": 8, "num": 2},
	}
	fmt.Printf("Where: %v\n", utils.Slice.Where(objArr, func(i int) bool {
		return objArr[i]["num"] == 2
	})) // Get all value in slice with condition

	fmt.Printf("First: %v\n", utils.Slice.First(objArr)) // Get first value in slice
	fmt.Printf("IndexOf: %v\n", utils.Slice.IndexOf(arrDuplicate, 15)) // Find first index of value in slice
	fmt.Printf("FirstWhere: %v\n", utils.Slice.FirstWhere(objArr, func(i int) bool {
		return objArr[i]["num"] == 9
	})) // Get first value in slice with given condition
	fmt.Printf("IndexWhere: %v\n", utils.Slice.IndexWhere(objArr, func(i int) bool {
		return objArr[i]["id"] == 0
	})) // Get first index in slice with given condition

	fmt.Printf("Last: %v\n", utils.Slice.Last(objArr)) // Get first value in slice
	fmt.Printf("LastIndexOf: %v\n", utils.Slice.LastIndexOf(arrDuplicate, 0)) // Find last index of value in slice
	fmt.Printf("LastWhere: %v\n", utils.Slice.LastWhere(objArr, func(i int) bool {
		return objArr[i]["id"] == 4
	})) // Get last value in slice with given condition
	fmt.Printf("LastIndexWhere: %v\n", utils.Slice.LastIndexWhere(objArr, func(i int) bool {
		return objArr[i]["num"] == 2
	})) // Get last index in slice with given condition
}

Documentation

Index

• Variables
• func ChunkSlice[T any](slice []T, chunkSize int) (chunks [][]T)
• func ConvertErrMsg[R any](errF any) ([]*R, error)
• func FileMove(src string, dst string, perm os.FileMode, file ...string)
• func GenerateSignature(key string, second ...int64) (signature string)
• func GetTimebaseUnix(seconds int64) int64
• func IsRFC3339(field validator.FieldLevel) bool
• func RandString(length int) string
• func RandStringLower(length int) string
• func RandStringUpper(length int) string
• func RandStringWithCharset(length int, charset string) string
• func RandomHex(n int) string
• func RandomHexUpper(n int) string
• func Substring(text string, indexs ...int) string
• func VerifySignature(key string, signature string, second ...int64) bool
• type CustomValidator
  • func NewValidator() *CustomValidator
  • func (cv *CustomValidator) GetErrMsg(err error) string
  • func (cv *CustomValidator) GetErrMsgField(err error) (errF []ErrField)
  • func (cv *CustomValidator) SetTranslation(locale string) *CustomValidator
• type ErrField

Variables

var Slice slice

Functions

func ChunkSlice

func ChunkSlice[T any](slice []T, chunkSize int) (chunks [][]T)

func ConvertErrMsg

func ConvertErrMsg[R any](errF any) ([]*R, error)

func FileMove

func FileMove(src string, dst string, perm os.FileMode, file ...string)

func GenerateSignature

func GenerateSignature(key string, second ...int64) (signature string)

func GetTimebaseUnix

func GetTimebaseUnix(seconds int64) int64

func IsRFC3339

func IsRFC3339(field validator.FieldLevel) bool

func RandString

func RandString(length int) string

func RandStringLower

func RandStringLower(length int) string

func RandStringUpper

func RandStringUpper(length int) string

func RandStringWithCharset

func RandStringWithCharset(length int, charset string) string

func RandomHex

func RandomHex(n int) string

func RandomHexUpper

func RandomHexUpper(n int) string

func Substring

func Substring(text string, indexs ...int) string

func VerifySignature

func VerifySignature(key string, signature string, second ...int64) bool

Types

type CustomValidator

type CustomValidator struct {
	Validate   *validator.Validate
	Translator ut.Translator
}

func NewValidator

func NewValidator() *CustomValidator

func (*CustomValidator) GetErrMsg

func (cv *CustomValidator) GetErrMsg(err error) string

func (*CustomValidator) GetErrMsgField

func (cv *CustomValidator) GetErrMsgField(err error) (errF []ErrField)

func (*CustomValidator) SetTranslation

func (cv *CustomValidator) SetTranslation(locale string) *CustomValidator

type ErrField

type ErrField struct {
	Field   string `json:"field"`
	Message string `json:"message"`
}