31 lines
548 B
Go
31 lines
548 B
Go
package vietguys
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import (
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"math/rand"
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"time"
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)
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// Constant ...
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const (
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otpCharacters = "123456789"
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otpLength = 6
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)
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// randomIntBetweenRange ...
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func randomIntBetweenRange(min int, max int) int {
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rand.Seed(time.Now().UnixNano())
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return rand.Intn(max-min) + min
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}
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// randomOTPCode ...
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func randomOTPCode() string {
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var code string
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var length = len(otpCharacters)
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for i := 0; i < otpLength; i++ {
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// Random character index
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randIndex := randomIntBetweenRange(0, length)
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code += string(otpCharacters[randIndex])
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}
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return code
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}
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