init: initial commit
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@@ -0,0 +1,41 @@
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package uniqueid
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import (
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"crypto/rand"
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"fmt"
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"math/big"
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"strings"
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"github.com/google/uuid"
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)
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func GenerateId() string {
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uuidV1, err := uuid.NewUUID()
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if err != nil {
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panic(err)
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}
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return uuidV1.String()
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}
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func GenerateName() string {
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str := uuid.New().String()
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//生成一个用户名 比如花友u278bb 中文后的字符随机生成 不可重复 取str的前六位
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return "花友" + str[6:12]
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}
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// GenerateRandomCode 生成邀请码
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func GenerateRandomCode(length int) string {
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const charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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var sb strings.Builder
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for i := 0; i < length; i++ {
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n, _ := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
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sb.WriteByte(charset[n.Int64()])
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}
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return sb.String()
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}
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// GenCodeKey 生成邀请码的key
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func GenCodeKey(userId string) string {
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return fmt.Sprintf("code:%s", userId)
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}
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