refactor: standardization of code structure (#7)

internal/qqwry/wry.go

@@ -18,7 +18,7 @@ func init() {
 		if os.IsNotExist(err) {
 			err := download()
 			if err != nil {
-				log.Error("Download qqwry.dat failed, caused by:%v, recommend to download it by yourself otherwise the `IpArea` will be null", err.Error())
+				log.Error("Download qqwry.dat failed, caused by:%v, recommend to download it by yourself otherwise the `IpArea` will be null", err)
 			}
 		}
 	} else if time.Until(info.ModTime()) > 5*24*time.Hour {

internal/rule/rule.go

@@ -35,7 +35,7 @@ func (br BaseRule) Match(s string) (flag, flagGroup string, vars map[string]stri
 			return
 		} else {
 			if catcher, err := regexp.Compile(br.FlagFormat); err != nil {
-				log.Error("%s(rule:%s)", err.Error(), br.Name)
+				log.Error("%s[rule:%s]", err, br.Name)
 				return
 			} else {
 				br.flagCatcher = catcher

pkg/dns/dns.go

@@ -39,10 +39,9 @@ func (s *Server) getRules() []*Rule {
 
 func (s *Server) updateRules() error {
 	db := database.DB.Model(new(Rule))
+	defer s.rulesLock.Unlock()
 	s.rulesLock.Lock()
-	db.Order("rank desc").Find(&s.rules)
-	s.rulesLock.Unlock()
-	return nil
+	return db.Order("rank desc").Find(&s.rules).Error
 }
 
 func (s *Server) Run() {
@@ -80,7 +79,7 @@ func (s *Server) Run() {
 
 					r, err := newRecord(_rule, flag, domain, ip, qqwry.Area(ip))
 					if err != nil {
-						log.Error("DNS record(rule_id:%s) created failed :%s", _rule.Name, err.Error())
+						log.Error("DNS record(rule_id:%s) created failed :%s", _rule.Name, err)
 						return nil, nil
 					}
 					log.Info("DNS record[id:%d rule:%s remote_ip:%s] has been created", r.ID, _rule.Name, ip)

pkg/dns/record.go

@@ -38,8 +38,7 @@ func newRecord(rule *Rule, flag, domain, remoteIp, ipArea string) (r *Record, er
 		Domain: domain,
 		Rule:   *rule,
 	}
-	err = database.DB.Create(r).Error
-	return r, err
+	return r, database.DB.Create(r).Error
 }
 
 func ListRecords(c *gin.Context) {
@@ -75,20 +74,20 @@ func ListRecords(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/dns/rule.go

@@ -85,7 +85,7 @@ func ListRules(c *gin.Context) {
 	if err := c.ShouldBind(&dnsRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -101,20 +101,20 @@ func ListRules(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("rank desc").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -137,7 +137,7 @@ func UpsertRules(c *gin.Context) {
 	if err := c.ShouldBind(&dnsRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -150,7 +150,7 @@ func UpsertRules(c *gin.Context) {
 	if err := dnsRule.CreateOrUpdate(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -176,7 +176,7 @@ func DeleteRules(c *gin.Context) {
 	if err := c.ShouldBind(&dnsRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -185,7 +185,7 @@ func DeleteRules(c *gin.Context) {
 	if err := dnsRule.Delete(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/ftp/ftp.go

@@ -48,21 +48,20 @@ func (s *Server) getRules() []*Rule {
 
 func (s *Server) updateRules() error {
 	db := database.DB.Model(new(Rule))
+	defer s.rulesLock.Unlock()
 	s.rulesLock.Lock()
-	db.Order("rank desc").Find(&s.rules)
-	s.rulesLock.Unlock()
-	return nil
+	return db.Order("rank desc").Find(&s.rules).Error
 }
 
 func (s *Server) handleConnection(conn net.Conn) {
 	defer conn.Close()
 
 	if err := conn.SetDeadline(time.Now().Add(time.Second * 30)); err != nil {
-		log.Error("FTP set connection deadline error:%v", err.Error())
+		log.Error("FTP set connection deadline error:%v", err)
 	}
 
 	if _, err := conn.Write([]byte("220 (vsFTPd 3.0.2)\r\n")); err != nil {
-		log.Error("FTP write connection error:%v", err.Error())
+		log.Error("FTP write connection error:%v", err)
 	}
 
 	ip := strings.Split(conn.RemoteAddr().String(), ":")[0]
@@ -126,12 +125,12 @@ loop:
 					pasvAddress := rule.CompileTpl(matchedRule.PasvAddress, vars)
 					pasvIP, pasvPort, err := net.SplitHostPort(pasvAddress)
 					if err != nil {
-						log.Warn("FTP failed to split rule[id%d] pasv_address(%s) :%s", matchedRule.ID, pasvAddress, err.Error())
+						log.Warn("FTP failed to split rule[id%d] pasv_address(%s) :%s", matchedRule.ID, pasvAddress, err)
 						break
 					}
 					port, err := strconv.Atoi(pasvPort)
 					if err != nil {
-						log.Warn("FTP failed to convert rule[id%d] pasv_port(%s) :%s", matchedRule.ID, pasvPort, err.Error())
+						log.Warn("FTP failed to convert rule[id%d] pasv_port(%s) :%s", matchedRule.ID, pasvPort, err)
 						break
 					}
 					ret = fmt.Sprintf("227 Entering Passive Mode (%s,%v,%d)\r\n", strings.ReplaceAll(pasvIP, ".", ","), float64(port/256), port%256)
@@ -159,7 +158,7 @@ loop:
 		// create new record
 		r, err := NewRecord(_rule, flag, user, password, path, ip, area, status)
 		if err != nil {
-			log.Error("FTP record[rule_id:%d] created failed :%s", _rule.ID, err.Error())
+			log.Error("FTP record[rule_id:%d] created failed :%s", _rule.ID, err)
 			return
 		}
 		log.Info("FTP record[id:%d rule:%s remote_ip:%s] has been created", r.ID, _rule.Name, ip)

pkg/ftp/record.go

@@ -43,8 +43,7 @@ func NewRecord(rule *Rule, flag, user, password, path, ip, area string, status S
 		Status:   status,
 		Rule:     *rule,
 	}
-	err = database.DB.Create(r).Error
-	return r, err
+	return r, database.DB.Create(r).Error
 }
 
 func ListRecords(c *gin.Context) {
@@ -85,7 +84,7 @@ func ListRecords(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -98,7 +97,7 @@ func ListRecords(c *gin.Context) {
 	if err := db.Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/ftp/rule.go

@@ -94,7 +94,7 @@ func ListRules(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -130,7 +130,7 @@ func UpsertRules(c *gin.Context) {
 	if err := c.ShouldBind(&ftpRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -143,7 +143,7 @@ func UpsertRules(c *gin.Context) {
 	if err := ftpRule.CreateOrUpdate(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -169,7 +169,7 @@ func DeleteRules(c *gin.Context) {
 	if err := c.ShouldBind(&ftpRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -178,7 +178,7 @@ func DeleteRules(c *gin.Context) {
 	if err := ftpRule.Delete(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/mysql/mysql.go

@@ -47,10 +47,9 @@ func (s *Server) getRules() []*Rule {
 
 func (s *Server) updateRules() error {
 	db := database.DB.Model(new(Rule))
+	defer s.rulesLock.Unlock()
 	s.rulesLock.Lock()
-	db.Order("rank desc").Find(&s.rules)
-	s.rulesLock.Unlock()
-	return nil
+	return db.Order("rank desc").Find(&s.rules).Error
 }
 
 // NewConnection is part of the mysql.Handler interface.
@@ -90,28 +89,26 @@ func (s *Server) NewConnection(c *vmysql.Conn) {
 func (s *Server) ConnectionClosed(c *vmysql.Conn) {
 	log.Trace("MySQL Client leaved, ID [%d]", c.ConnectionID)
 
-	var (
-		user                                  = c.User
-		schema                                = c.SchemaName
-		supportLoadLocalData                  = c.SupportLoadDataLocal
-		cr, ok                                = s.connRulePool.Load(c.ConnectionID)
-		clientName, clientOS, flag, flagGroup string
-	)
+	var clientName, clientOS, flag, flagGroup string
 
+	user := c.User
+	schema := c.SchemaName
+	supportLoadLocalData := c.SupportLoadDataLocal
+
+	cr, ok := s.connRulePool.Load(c.ConnectionID)
 	if !ok {
+		log.Error("MySQL Connection rule(%d) not match flag", c.ConnectionID)
 		return
 	}
 
 	_rule := cr.(*Rule)
+	// flag must not be empty
 	for _, s := range []string{user, schema} {
 		flag, flagGroup, _ = _rule.Match(s)
 		if flag != "" {
 			break
 		}
 	}
-	if flag == "" {
-		log.Error("MySQL Connection rule(%d) not match flag", c.ConnectionID)
-	}
 
 	if c.ConnAttrs != nil {
 		clientName = c.ConnAttrs["_client_name"] + " " + c.ConnAttrs["_client_version"]
@@ -130,7 +127,7 @@ func (s *Server) ConnectionClosed(c *vmysql.Conn) {
 
 	r, err := newRecord(_rule, flag, user, clientName, clientOS, ip, qqwry.Area(ip), supportLoadLocalData, files)
 	if err != nil {
-		log.Error("MySQL record(rule_id:%s) created failed :%s", _rule.Name, err.Error())
+		log.Error("MySQL record(rule_id:%s) created failed :%s", _rule.Name, err)
 		return
 	}
 	log.Info("MySQL record[id:%d rule:%s remote_ip:%s] has been created", r.ID, _rule.Name, ip)

pkg/mysql/record.go

@@ -45,8 +45,7 @@ func newRecord(rule *Rule, flag, username, clientName, clientOS, remoteIp, ipAre
 		Files:         files,
 		Rule:          *rule,
 	}
-	err = database.DB.Create(r).Error
-	return r, err
+	return r, database.DB.Create(r).Error
 }
 
 func ListRecords(c *gin.Context) {
@@ -93,20 +92,20 @@ func ListRecords(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Preload("Files").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/mysql/rule.go

@@ -68,7 +68,7 @@ func ListRules(c *gin.Context) {
 	if err := c.ShouldBind(&mysqlRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -84,20 +84,20 @@ func ListRules(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("rank desc").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -120,7 +120,7 @@ func UpsertRules(c *gin.Context) {
 	if err := c.ShouldBind(&mysqlRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -133,7 +133,7 @@ func UpsertRules(c *gin.Context) {
 	if err := mysqlRule.CreateOrUpdate(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -159,7 +159,7 @@ func DeleteRules(c *gin.Context) {
 	if err := c.ShouldBind(&mysqlRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -168,7 +168,7 @@ func DeleteRules(c *gin.Context) {
 	if err := mysqlRule.Delete(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/rhttp/http.go

@@ -81,10 +81,9 @@ func (s *Server) getRules() []*Rule {
 
 func (s *Server) updateRules() error {
 	db := database.DB.Model(new(Rule))
+	defer s.rulesLock.Unlock()
 	s.rulesLock.Lock()
-	db.Order("rank desc").Find(&s.rules)
-	s.rulesLock.Unlock()
-	return nil
+	return db.Order("rank desc").Find(&s.rules).Error
 }
 
 func (s *Server) Run() {
@@ -153,7 +152,7 @@ func (s *Server) Receive(c *gin.Context) {
 		// create new record
 		r, err := NewRecord(_rule, flag, c.Request.Method, u, ip, area, string(raw))
 		if err != nil {
-			log.Error("HTTP record[rule_id:%d] created failed :%s", _rule.ID, err.Error())
+			log.Error("HTTP record[rule_id:%d] created failed :%s", _rule.ID, err)
 			code, err := strconv.Atoi(compileTpl(c, _rule.ResponseStatusCode, vars))
 			if err != nil || code < 100 || code > 600 {
 				code = 400

pkg/rhttp/record.go

@@ -41,8 +41,7 @@ func NewRecord(rule *Rule, flag, method, url, ip, area, raw string) (r *Record,
 		RawRequest: raw,
 		Rule:       *rule,
 	}
-	err = database.DB.Create(r).Error
-	return r, err
+	return r, database.DB.Create(r).Error
 }
 
 func ListRecords(c *gin.Context) {
@@ -83,20 +82,20 @@ func ListRecords(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/rhttp/rule.go

@@ -102,20 +102,20 @@ func ListRules(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("rank desc").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -138,7 +138,7 @@ func UpsertRules(c *gin.Context) {
 	if err := c.ShouldBind(&httpRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -151,7 +151,7 @@ func UpsertRules(c *gin.Context) {
 	if err := httpRule.CreateOrUpdate(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -177,7 +177,7 @@ func DeleteRules(c *gin.Context) {
 	if err := c.ShouldBind(&httpRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -186,7 +186,7 @@ func DeleteRules(c *gin.Context) {
 	if err := httpRule.Delete(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/rmi/record.go

@@ -37,8 +37,7 @@ func NewRecord(rule *Rule, flag, path, ip, area string) (r *Record, err error) {
 		Path: path,
 		Rule: *rule,
 	}
-	err = database.DB.Create(r).Error
-	return r, err
+	return r, database.DB.Create(r).Error
 }
 
 func ListRecords(c *gin.Context) {
@@ -76,20 +75,20 @@ func ListRecords(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return

pkg/rmi/rmi.go

@@ -40,17 +40,16 @@ func (s *Server) getRules() []*Rule {
 
 func (s *Server) updateRules() error {
 	db := database.DB.Model(new(Rule))
+	defer s.rulesLock.Unlock()
 	s.rulesLock.Lock()
-	db.Order("rank desc").Find(&s.rules)
-	s.rulesLock.Unlock()
-	return nil
+	return db.Order("rank desc").Find(&s.rules).Error
 }
 
 func (s *Server) handleConnection(conn net.Conn) {
 	defer conn.Close()
 
 	if err := conn.SetDeadline(time.Now().Add(time.Second * 30)); err != nil {
-		log.Error("RMI set connection deadline error:%v", err.Error())
+		log.Error("RMI set connection deadline error:%v", err)
 	}
 
 	ip, port, _ := net.SplitHostPort(conn.RemoteAddr().String())
@@ -58,7 +57,7 @@ func (s *Server) handleConnection(conn net.Conn) {
 	buf := make([]byte, 1024)
 	_, err := conn.Read(buf)
 	if err != nil {
-		log.Error("RMI read connection error:%v", err.Error())
+		log.Error("RMI read connection error:%v", err)
 	}
 
 	if !bytes.Contains(buf, []byte{0x4a, 0x52, 0x4d, 0x49}) {
@@ -78,7 +77,7 @@ func (s *Server) handleConnection(conn net.Conn) {
 
 	_, err = conn.Write(send)
 	if err != nil {
-		log.Error("RMI write connection error: %v", err.Error())
+		log.Error("RMI write connection error: %v", err)
 	}
 
 	data := make([]byte, 512)
@@ -86,7 +85,7 @@ func (s *Server) handleConnection(conn net.Conn) {
 	for length := 0; length < 50; {
 		n, err := conn.Read(data)
 		if err != nil {
-			log.Error("RMI read connection error: %v", err.Error())
+			log.Error("RMI read connection error: %v", err)
 		}
 		length += n
 	}
@@ -105,7 +104,7 @@ func (s *Server) handleConnection(conn net.Conn) {
 		// create new record
 		r, err := NewRecord(_rule, flag, path, ip, area)
 		if err != nil {
-			log.Error("RMI record[rule_id:%d] created failed :%s", _rule.ID, err.Error())
+			log.Error("RMI record[rule_id:%d] created failed :%s", _rule.ID, err)
 			return
 		}
 		log.Info("RMI record[id:%d rule:%s remote_ip:%s] has been created", r.ID, _rule.Name, ip)
@@ -150,7 +149,7 @@ func (s *Server) Run() {
 	for {
 		tcpConn, err := listener.Accept()
 		if err != nil {
-			log.Error("RMI accept connection error: %v", err.Error())
+			log.Error("RMI accept connection error: %v", err)
 			continue
 		}
 		go s.handleConnection(tcpConn)

pkg/rmi/rule.go

@@ -93,20 +93,20 @@ func ListRules(c *gin.Context) {
 	if err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
 	}
 
-	if order != "desc" && order != "asc" {
+	if order != "asc" {
 		order = "desc"
 	}
 
 	if err := db.Order("rank desc").Order("id" + " " + order).Count(&count).Offset((page - 1) * 10).Limit(10).Find(&res).Error; err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -129,7 +129,7 @@ func UpsertRules(c *gin.Context) {
 	if err := c.ShouldBind(&rmiRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -142,7 +142,7 @@ func UpsertRules(c *gin.Context) {
 	if err := rmiRule.CreateOrUpdate(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"result": nil,
 		})
 		return
@@ -168,7 +168,7 @@ func DeleteRules(c *gin.Context) {
 	if err := c.ShouldBind(&rmiRule); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return
@@ -177,7 +177,7 @@ func DeleteRules(c *gin.Context) {
 	if err := rmiRule.Delete(); err != nil {
 		c.JSON(400, gin.H{
 			"status": "failed",
-			"error":  err.Error(),
+			"error":  err,
 			"data":   nil,
 		})
 		return