42 lines
789 B
Go
42 lines
789 B
Go
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package util
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import (
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"fmt"
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"math/rand"
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"strings"
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"time"
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)
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const alphabet = "abcdefghijklmnopqrstuvwxyz"
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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// RandomInt generates a random integer between min and max
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func RandomInt(min, max int64) int64 {
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return min + rand.Int63n(max-min+1)
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}
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// RandomString generates a random string of length n
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func RandomString(n int) string {
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var sb strings.Builder
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k := len(alphabet)
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for i := 0; i < n; i++ {
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c := alphabet[rand.Intn(k)]
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sb.WriteByte(c)
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}
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return sb.String()
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}
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func RandomEmail() string {
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return fmt.Sprintf("%s@mail.com", RandomString(5))
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}
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func RandomTransactionCode(prefix string, merchant_index int64) string {
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time_now := time.Now().Unix()
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return fmt.Sprintf("%s%d%d", prefix, merchant_index, time_now)
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}
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