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souvikhaldar/randomOTP.go

Created October 25, 2018 10:39
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randomOTP.go
// getRandNum returns a random number of size four
func getRandNum() (string, error) {
nBig, e := rand.Int(rand.Reader, big.NewInt(8999))
if e != nil {
return "", e
}
return strconv.FormatInt(nBig.Int64()+1000, 10), nil
}
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