changed date format and add numbers to user hashtag generator

routers/api/v1/user/user.go

@@ -104,7 +104,7 @@ func NewUser(c *fiber.Ctx) error {
 	}
 
 	user_id := strings.Replace(uuid.New().String(), "-", "", -1)
-	created := time.Now().Format("2006-02-01 15:04:05")
+	created := time.Now().Format("2006-01-02 15:04:05") // YYYY-MM-DD hh:mm:ss
 
 	stmt, err := db.Prepare("INSERT INTO users (user_id, user_hashtag, username, email, password, created) VALUES (?, ?, ?, ?, ?, ?);")
 	stmt.Exec(user_id, input.Hashtag, input.Username, input.Email, hashedPassword, created)
@@ -117,12 +117,13 @@ func NewUser(c *fiber.Ctx) error {
 }
 
 func RandomHashtag(db *sql.DB, n int) string {
+	fmt.Println("gen Randomhashtag")
 	c := make(chan bool)
 	var s string
 
 	for {
 		su := shortuuid.NewShortUUID()
-		su.SetAlphabet("ABCDEFGHJKLMNPQRSTUVWXYZ")
+		su.SetAlphabet("ABCDEFGHJKLMNPQRSTUVWXYZ0123456789")
 		s = su.Random(n)
 
 		go func() {