VoucherCodeGenerator - Voucher code generator - Golang

Voucher Code Generator

Generate unique, random, and hard to guess coupon / voucher codes. Use cases: promo codes, loyalty coupons, gift vouchers, in-app purchases, referral links

Instalation

Just use go get.

go get github.com/AmirSoleimani/VoucherCodeGenerator/vcgen

Sample

func main() {

	// lolipop :P
	wg := sync.WaitGroup{}
	wg.Add(3)

	// normal
	go func(wg *sync.WaitGroup) {
		vc := vcgen.New(&vcgen.Generator{Count: 10, Pattern: "###-###-###", Charset: "123456789"})
		result, err := vc.Run()
		if err != nil {
			fmt.Println(err)
		}
		fmt.Println(result)
		wg.Done()
	}(&wg)

	// with prefix
	go func(wg *sync.WaitGroup) {
		vcPrefix := vcgen.New(&vcgen.Generator{Count: 10, Pattern: "######", Prefix: "WELC-"})
		result, err := vcPrefix.Run()
		if err != nil {
			fmt.Println(err)
		}
		fmt.Println(result)
		wg.Done()
	}(&wg)

	// with prefix + postfix
	go func(wg *sync.WaitGroup) {
		vcPrePostfix := vcgen.New(&vcgen.Generator{Count: 10, Pattern: "######", Prefix: "WELC-", Postfix: "-B"})
		result, err := vcPrePostfix.Run()
		if err != nil {
			fmt.Println(err)
		}
		fmt.Println(result)
		wg.Done()
	}(&wg)

	wg.Wait()

}

Prefix and Postfix

You can optionally surround each generated code with a prefix and/or postfix.

Pattern

Codes may follow a specified pattern. Use hash ( # ) as a placeholder for random characters.

Infeasible configs

There exist some configs that are not feasible. For example it's not possible to generate 1000 codes if you want your codes to be 2 characters long and consisting only of numbers. Voucher code generator detects such cases and throws an error "Not possible to generate requested number of codes." .

Config reference

attribute default value description length 6 Number of characters in a generated code (excluding prefix and postfix) count 1 Number of codes generated. charset alphanumeric Characters that can appear in the code. prefix "" A text appended before the code. postfix "" A text appended after the code. pattern "######" A pattern for codes where hashes ( # ) will be replaced with random characters.

License

Code released under the MIT license .