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24 lines
490 B
Go
24 lines
490 B
Go
package utils
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import (
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"bytes"
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"crypto/rand"
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"math/big"
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)
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func RandomString(len int) string {
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return RandomStringRange(len, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
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}
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func RandomStringRange(len int, str string) string {
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var res string
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b := bytes.NewBufferString(str)
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length := b.Len()
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bigInt := big.NewInt(int64(length))
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for i := 0; i < len; i++ {
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randomInt, _ := rand.Int(rand.Reader, bigInt)
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res += string(str[randomInt.Int64()])
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}
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return res
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}
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