🎉 first commit

app/utils/short_key.go

@@ -0,0 +1,26 @@
+package utils
+
+import (
+	"strings"
+)
+
+const keyCharacters string = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+func GenerateKey(n int) string {
+	var result strings.Builder
+	base := len(keyCharacters)
+
+	for n > 0 {
+		n--
+		result.WriteByte(keyCharacters[n%base])
+		n /= base
+	}
+
+	key := result.String()
+	runes := []rune(key)
+	for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
+		runes[i], runes[j] = runes[j], runes[i]
+	}
+
+	return string(runes)
+}