randstr

README

Randstr

Randstr is an Go library for generating secure random strings

Install

  go get -u github.com/thanhpk/randstr

Usage

Generate a random hex string

token := randstr.Hex(16) // generate 128-bit hex string

Running example

  package main
  import(
    "github.com/thanhpk/randstr"
    "fmt"
  )

  func main() {
    for i := 0; i < 5; i++ {
      token := randstr.Hex(16) // generate 128-bit hex string
      fmt.Println(token)
    }
  }
  // Output:
  // 67aab2d956bd7cc621af22cfb169cba8
  // 226eeb52947edbf3e97d1e6669e212c2
  // 5f3615e95d103d14ffb5b655aa0eec1e
  // ff3ab4efbd74025b87b14b59422d304c
  // a6705813c174ca73ed795ea0bab12726

Generate a random ASCII string

token := randstr.String(16) // generate a random 16 character length string

Running example

  package main
  import(
    "github.com/thanhpk/randstr"
    "fmt"
  )

  func main() {
    for i := 0; i < 5; i++ {
      token := randstr.String(16)
      fmt.Println(token)
    }
  }
  // Output:
  // 7EbxkrHc1l3Ahmyr
  // I5XH2gc1EEHgbmGI
  // GlCycMpsxGkn9cDQ
  // U2OfBDQoak0z8FwV
  // kDX1m81u14YwEiCY

Generate a random decimal number string

token := randstr.Dec(16) // generate a random 16 length string of decimal number

Running example

  package main
  import(
    "github.com/thanhpk/randstr"
    "fmt"
  )

  func main() {
    for i := 0; i < 5; i++ {
      token := randstr.Dec(16)
      fmt.Println(token)
    }
  }
  // Output:
	//1232392418047380
	//9160917876815937
	//6629264107419930
	//0271037110897873
	//0337735480322223

License

MIT

Documentation

Overview

Package randstr provides basic functions for generating random bytes, string

Index

• func Base62(s int) string
• func Base64(n int) string
• func Bytes(n int) []byte
• func Dec(n int) string
• func Hex(n int) string
• func String(n int, letters ...string) string

Examples

• Dec
• Hex
• String

Functions

func Base62

func Base62(s int) string

Base62 generates a random base62 string with length of n

func Base64

func Base64(n int) string

Base64 generates a random base64 string with length of n

func Bytes

func Bytes(n int) []byte

Bytes generates n random bytes

func Dec

func Dec(n int) string

Dec generates a random decimal number string with length of n

Example

for i := 0; i < 5; i++ {
	token := Dec(16)
	fmt.Println(token)
}

Output:

1232392418047380
9160917876815937
6629264107419930
0271037110897873
0337735480322223

func Hex

func Hex(n int) string

Hex generates a random hex string with length of n e.g: 67aab2d956bd7cc621af22cfb169cba8

Example

for i := 0; i < 5; i++ {
	token := Hex(16)
	fmt.Println(token)
}

Output:

67aab2d956bd7cc621af22cfb169cba8
226eeb52947edbf3e97d1e6669e212c2
5f3615e95d103d14ffb5b655aa0eec1e
ff3ab4efbd74025b87b14b59422d304c
a6705813c174ca73ed795ea0bab12726

func String

func String(n int, letters ...string) string

String generates a random string using only letters provided in the letters parameter if user ommit letters parameters, this function will use defLetters instead

Example

for i := 0; i < 5; i++ {
	token := String(16)
	fmt.Println(token)
}

Output:

7EbxkrHc1l3Ahmyr
I5XH2gc1EEHgbmGI
GlCycMpsxGkn9cDQ
U2OfBDQoak0z8FwV
kDX1m81u14YwEiCY