fix(niki): path linter errors

delivery/http_server/server.go

@@ -6,9 +6,9 @@ type Server struct {
 	config config.Config
 }
 
-func New(config config.Config) Server {
+func New(cfg config.Config) Server {
 	return Server{
-		config: config,
+		config: cfg,
 	}
 }
 

entity/kind_box_status.go

@@ -28,6 +28,7 @@ func AllKindBoxStatus() []string {
 	for status, str := range kindBoxStatusStrings {
 		statusStrings[int(status)-1] = str
 	}
+
 	return statusStrings
 }
 
@@ -38,5 +39,6 @@ func MapToKindBoxStatus(statusStr string) KindBoxStatus {
 			return status
 		}
 	}
+
 	return KindBoxStatus(0)
 }

go.mod

@@ -3,11 +3,14 @@ module git.gocasts.ir/ebhomengo/niki
 go 1.21.3
 
 require (
+	github.com/go-ozzo/ozzo-validation v3.6.0+incompatible
+	github.com/go-ozzo/ozzo-validation/v4 v4.3.0
 	github.com/knadh/koanf v1.5.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
 
 require (
+	github.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
 	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect

go.sum

@@ -11,6 +11,8 @@ github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hC
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496 h1:zV3ejI06GQ59hwDQAvmK1qxOQGB3WuVTRoY0okPTAv0=
+github.com/asaskevich/govalidator v0.0.0-20200108200545-475eaeb16496/go.mod h1:oGkLhpf+kjZl6xBf758TQhh5XrAeiJv/7FRz/2spLIg=
 github.com/aws/aws-sdk-go-v2 v1.9.2/go.mod h1:cK/D0BBs0b/oWPIcX/Z/obahJK1TT7IPVjy53i/mX/4=
 github.com/aws/aws-sdk-go-v2/config v1.8.3/go.mod h1:4AEiLtAb8kLs7vgw2ZV3p2VZ1+hBavOc84hqxVNpCyw=
 github.com/aws/aws-sdk-go-v2/credentials v1.4.3/go.mod h1:FNNC6nQZQUuyhq5aE5c7ata8o9e4ECGmS4lAXC7o1mQ=
@@ -55,6 +57,10 @@ github.com/go-ldap/ldap v3.0.2+incompatible/go.mod h1:qfd9rJvER9Q0/D/Sqn1DfHRoBp
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
+github.com/go-ozzo/ozzo-validation v3.6.0+incompatible h1:msy24VGS42fKO9K1vLz82/GeYW1cILu7Nuuj1N3BBkE=
+github.com/go-ozzo/ozzo-validation v3.6.0+incompatible/go.mod h1:gsEKFIVnabGBt6mXmxK0MoFy+cZoTJY6mu5Ll3LVLBU=
+github.com/go-ozzo/ozzo-validation/v4 v4.3.0 h1:byhDUpfEwjsVQb1vBunvIjh2BHQ9ead57VkAEY4V+Es=
+github.com/go-ozzo/ozzo-validation/v4 v4.3.0/go.mod h1:2NKgrcHl3z6cJs+3Oo940FPRiTzuqKbvfrL2RxCj6Ew=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-test/deep v1.0.2-0.20181118220953-042da051cf31/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=

pkg/http_msg/mapper.go

@@ -1,42 +1,49 @@
 package httpmsg
 
 import (
+	"errors"
 	"net/http"
 
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
 )
 
+// TODO: this temperary to ignore linter error.(maggic number).
+const (
+	internalStatus = 500
+)
+
 func Error(err error) (message string, code int) {
-	switch err.(type) {
-	case richerror.RichError:
-		re := err.(richerror.RichError)
+	var re *richerror.RichError
+	if !errors.As(err, &re) {
+		return err.Error(), http.StatusBadRequest
+	}
 	msg := re.Message()
-
-		code := mapKindToHTTPStatusCode(re.Kind())
-
+	code = mapKindToHTTPStatusCode(re.Kind())
 	// we should not expose unexpected error messages
-		if code >= 500 {
+	if code >= internalStatus {
 		msg = errmsg.ErrorMsgSomethingWentWrong
 	}
 
 	return msg, code
-	default:
-		return err.Error(), http.StatusBadRequest
-	}
 }
 
 func mapKindToHTTPStatusCode(kind richerror.Kind) int {
 	switch kind {
 	case richerror.KindInvalid:
+
 		return http.StatusUnprocessableEntity
 	case richerror.KindNotFound:
+
 		return http.StatusNotFound
 	case richerror.KindForbidden:
+
 		return http.StatusForbidden
 	case richerror.KindUnexpected:
+
 		return http.StatusInternalServerError
 	default:
+
 		return http.StatusBadRequest
 	}
 }

pkg/rich_error/rich_error.go

@@ -1,5 +1,7 @@
 package richerror
 
+import "errors"
+
 type Kind int
 
 const (
@@ -25,26 +27,31 @@ func New(op Op) RichError {
 
 func (r RichError) WithOp(op Op) RichError {
 	r.operation = op
+
 	return r
 }
 
 func (r RichError) WithErr(err error) RichError {
 	r.wrappedError = err
+
 	return r
 }
 
 func (r RichError) WithMessage(message string) RichError {
 	r.message = message
+
 	return r
 }
 
 func (r RichError) WithKind(kind Kind) RichError {
 	r.kind = kind
+
 	return r
 }
 
 func (r RichError) WithMeta(meta map[string]interface{}) RichError {
 	r.meta = meta
+
 	return r
 }
 
@@ -61,8 +68,8 @@ func (r RichError) Kind() Kind {
 		return r.kind
 	}
 
-	re, ok := r.wrappedError.(RichError)
-	if !ok {
+	var re *RichError
+	if !errors.As(r.wrappedError, re) {
 		return 0
 	}
 
@@ -74,8 +81,8 @@ func (r RichError) Message() string {
 		return r.message
 	}
 
-	re, ok := r.wrappedError.(RichError)
-	if !ok {
+	var re *RichError
+	if !errors.As(r.wrappedError, re) {
 		return r.wrappedError.Error()
 	}
 

repository/mysql/db.go

@@ -14,29 +14,36 @@ type Config struct {
 	DBName   string `koanf:"db_name"`
 }
 
-type MySQLDB struct {
+type DB struct {
 	config Config
 	db     *sql.DB
 }
 
-func (m *MySQLDB) Conn() *sql.DB {
+func (m *DB) Conn() *sql.DB {
 	return m.db
 }
 
-func New(config Config) *MySQLDB {
+// TODO: this temperary to ignore linter error (magic number).
+const (
+	dbMaxConnLifetime = time.Minute * 3
+	dbMaxOpenConns    = 10
+	dbMaxIdleConns    = 10
+)
+
+func New(config Config) *DB {
 	// parseTime=true changes the output type of DATE and DATETIME values to time.Time
 	// instead of []byte / string
 	// The date or datetime like 0000-00-00 00:00:00 is converted into zero value of time.Time
 	db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@(%s:%d)/%s?parseTime=true",
 		config.Username, config.Password, config.Host, config.Port, config.DBName))
 	if err != nil {
-		panic(fmt.Errorf("can't open mysql db: %v", err))
+		panic(fmt.Errorf("can't open mysql db: %w", err))
 	}
 
 	// See "Important settings" section.
-	db.SetConnMaxLifetime(time.Minute * 3)
-	db.SetMaxOpenConns(10)
-	db.SetMaxIdleConns(10)
+	db.SetConnMaxLifetime(dbMaxConnLifetime)
+	db.SetMaxOpenConns(dbMaxOpenConns)
+	db.SetMaxIdleConns(dbMaxIdleConns)
 
-	return &MySQLDB{config: config, db: db}
+	return &DB{config: config, db: db}
 }

repository/mysql/mysql_kind_box/db.go

@@ -3,10 +3,10 @@ package mysqlkindbox
 import "git.gocasts.ir/ebhomengo/niki/repository/mysql"
 
 type DB struct {
-	conn *mysql.MySQLDB
+	conn *mysql.DB
 }
 
-func New(conn *mysql.MySQLDB) *DB {
+func New(conn *mysql.DB) *DB {
 	return &DB{
 		conn: conn,
 	}

service/admin/kind_box/add.go

@@ -21,5 +21,6 @@ func (s Service) Add(ctx context.Context, req param.KindBoxAddRequest) (param.Ki
 	if err != nil {
 		return param.KindBoxAddResponse{}, richerror.New(op).WithErr(err).WithKind(richerror.KindUnexpected)
 	}
+
 	return param.KindBoxAddResponse{KindBox: kindBox}, nil
 }

service/admin/kind_box/get_all.go

@@ -13,5 +13,6 @@ func (s Service) GetAll(ctx context.Context) (param.KindBoxGetAllResponse, error
 	if err != nil {
 		return param.KindBoxGetAllResponse{}, richerror.New(op).WithErr(err).WithKind(richerror.KindUnexpected)
 	}
+
 	return param.KindBoxGetAllResponse{AllKindBox: allKindBox}, nil
 }

validator/admin/kind_box/add.go

@@ -1,6 +1,8 @@
 package adminkindboxvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -27,8 +29,8 @@ func (v Validator) ValidateAdminAddRequest(req param.KindBoxAddRequest) (map[str
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -43,5 +45,5 @@ func (v Validator) ValidateAdminAddRequest(req param.KindBoxAddRequest) (map[str
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box/delete.go

@@ -1,6 +1,8 @@
 package adminkindboxvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -23,8 +25,8 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxDeleteRequest) (map[st
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -39,5 +41,5 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxDeleteRequest) (map[st
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box/get.go

@@ -1,6 +1,8 @@
 package adminkindboxvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -22,8 +24,8 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxGetRequest) (map[stri
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -38,5 +40,5 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxGetRequest) (map[stri
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box/update.go

@@ -1,6 +1,8 @@
 package adminkindboxvalidator
 
 import (
+	"errors"
+
 	"git.gocasts.ir/ebhomengo/niki/entity"
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
@@ -27,18 +29,18 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxUpdateRequest) (map[st
 		validation.Field(&req.TotalAmount, validation.Min(0)),
 
 		validation.Field(&req.SenderID,
-			validation.By(v.doesEmployeeExist(req.SenderID))),
+			validation.By(v.doesEmployeeExist)),
 
 		validation.Field(&req.ReceiverID,
-			validation.By(v.doesEmployeeExist(req.ReceiverID))),
+			validation.By(v.doesEmployeeExist)),
 
 		validation.Field(&req.Status,
 			validation.In(entity.AllKindBoxStatus())),
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -53,5 +55,5 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxUpdateRequest) (map[st
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box/validator.go

@@ -26,7 +26,10 @@ func New(repo Repository) Validator {
 }
 
 func (v Validator) doesKindBoxRequestExist(value interface{}) error {
-	receiverID := value.(uint)
+	receiverID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.KindBoxRequestExist(receiverID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -36,7 +39,10 @@ func (v Validator) doesKindBoxRequestExist(value interface{}) error {
 }
 
 func (v Validator) doesEmployeeExist(value interface{}) error {
-	senderID := value.(uint)
+	senderID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.EmployeeExist(senderID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -46,7 +52,10 @@ func (v Validator) doesEmployeeExist(value interface{}) error {
 }
 
 func (v Validator) doesBenefactorExist(value interface{}) error {
-	benefactorID := value.(uint)
+	benefactorID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.BenefactorExist(benefactorID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -56,7 +65,10 @@ func (v Validator) doesBenefactorExist(value interface{}) error {
 }
 
 func (v Validator) doesKindBoxExist(value interface{}) error {
-	kindboxID := value.(uint)
+	kindboxID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgNotFound)
+	}
 	_, err := v.repo.KindBoxExist(kindboxID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -67,8 +79,11 @@ func (v Validator) doesKindBoxExist(value interface{}) error {
 
 func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.RuleFunc {
 	return func(value interface{}) error {
-		kbId := value.(uint)
-		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbId)
+		kbID, ok := value.(uint)
+		if !ok {
+			return fmt.Errorf(errmsg.ErrorMsgNotFound)
+		}
+		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbID)
 		if err != nil {
 			return fmt.Errorf(errmsg.ErrorMsgNotFound)
 		}
@@ -77,18 +92,25 @@ func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.R
 	}
 }
 
-func (v Validator) hasCorrectStatus(value interface{}) error {
-	status := value.(string)
-	_, err := v.repo.CheckStatus(status)
-	if err != nil {
-		return fmt.Errorf(errmsg.ErrorMsgNotFound)
-	}
+// TODO: this temperary to ignore linter error. (unused function)
+// func (v Validator) hasCorrectStatus(value interface{}) error {
+// 	status, ok := value.(string)
+// 	if !ok {
+// 		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+// 	}
+// 	_, err := v.repo.CheckStatus(status)
+// 	if err != nil {
+// 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
+// 	}
 
-	return nil
-}
+// 	return nil
+// }
 
 func (v Validator) hasPendingStatus(value interface{}) error {
-	kindboxID := value.(uint)
+	kindboxID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.PendingStatus(kindboxID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)

validator/admin/kind_box_req/add.go

@@ -1,6 +1,8 @@
 package adminkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -24,8 +26,8 @@ func (v Validator) ValidateAddRequest(req param.KindBoxReqAddRequest) (map[strin
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -40,5 +42,5 @@ func (v Validator) ValidateAddRequest(req param.KindBoxReqAddRequest) (map[strin
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box_req/delete.go

@@ -1,6 +1,8 @@
 package adminkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -23,8 +25,8 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxReqDeleteRequest) (map
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -39,5 +41,5 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxReqDeleteRequest) (map
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box_req/get.go

@@ -1,6 +1,8 @@
 package adminkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -22,8 +24,8 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxReqGetRequest) (map[s
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -38,5 +40,5 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxReqGetRequest) (map[s
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box_req/update.go

@@ -1,6 +1,8 @@
 package adminkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/admin/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -24,12 +26,12 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxReqUpdateRequest) (map
 			validation.By(v.doesKindBoxBelongToBenefactor(req.BenefactorID))),
 
 		validation.Field(&req.TypeID,
-			validation.By(v.doesTypeExist(req.TypeID))),
+			validation.By(v.doesTypeExist)),
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -44,5 +46,5 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxReqUpdateRequest) (map
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/admin/kind_box_req/validator.go

@@ -29,7 +29,10 @@ func New(repo Repository) Validator {
 }
 
 func (v Validator) doesBenefactorExist(value interface{}) error {
-	benefactorID := value.(int)
+	benefactorID, ok := value.(int)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.BenefactorExist(benefactorID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -40,8 +43,11 @@ func (v Validator) doesBenefactorExist(value interface{}) error {
 
 func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.RuleFunc {
 	return func(value interface{}) error {
-		kbId := value.(uint)
-		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbId)
+		kbID, ok := value.(uint)
+		if !ok {
+			return fmt.Errorf(errmsg.ErrorMsgNotFound)
+		}
+		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbID)
 		if err != nil {
 			return fmt.Errorf(errmsg.ErrorMsgNotFound)
 		}
@@ -51,7 +57,10 @@ func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.R
 }
 
 func (v Validator) doesKindBoxRequestExist(value interface{}) error {
-	kindboxreqID := value.(int)
+	kindboxreqID, ok := value.(int)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.KindBoxRequestExist(kindboxreqID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -61,7 +70,10 @@ func (v Validator) doesKindBoxRequestExist(value interface{}) error {
 }
 
 func (v Validator) doesTypeExist(value interface{}) error {
-	typeID := value.(int)
+	typeID, ok := value.(int)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.TypeExist(typeID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -71,7 +83,10 @@ func (v Validator) doesTypeExist(value interface{}) error {
 }
 
 func (v Validator) hasPendingStatus(value interface{}) error {
-	kindboxID := value.(uint)
+	kindboxID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.PendingStatus(kindboxID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)

validator/benefactor/kind_box/get.go

@@ -1,6 +1,8 @@
 package userkindboxvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -22,8 +24,8 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxGetRequest) (map[stri
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -38,5 +40,5 @@ func (v Validator) ValidateGetByIDRequest(req param.KindBoxGetRequest) (map[stri
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box/get_all.go

@@ -1,6 +1,8 @@
 package userkindboxvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -17,8 +19,8 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxGetAllRequest) (map[st
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -33,5 +35,5 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxGetAllRequest) (map[st
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box/validator.go

@@ -10,7 +10,7 @@ import (
 type Repository interface {
 	BenefactorExist(id uint) (bool, error)
 	KindBoxExist(id uint) (bool, error)
-	KindBoxBelongToBenefactor(bId uint, kbId uint) (bool, error)
+	KindBoxBelongToBenefactor(bID uint, kbID uint) (bool, error)
 }
 
 type Validator struct {
@@ -22,7 +22,10 @@ func New(repo Repository) Validator {
 }
 
 func (v Validator) doesBenefactorExist(value interface{}) error {
-	benefactorID := value.(uint)
+	benefactorID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.BenefactorExist(benefactorID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -32,7 +35,10 @@ func (v Validator) doesBenefactorExist(value interface{}) error {
 }
 
 func (v Validator) doesKindBoxExist(value interface{}) error {
-	kindBoxID := value.(uint)
+	kindBoxID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.KindBoxExist(kindBoxID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -43,8 +49,11 @@ func (v Validator) doesKindBoxExist(value interface{}) error {
 
 func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.RuleFunc {
 	return func(value interface{}) error {
-		kbId := value.(uint)
-		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbId)
+		kbID, ok := value.(uint)
+		if !ok {
+			return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+		}
+		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbID)
 		if err != nil {
 			return fmt.Errorf(errmsg.ErrorMsgNotFound)
 		}

validator/benefactor/kind_box_req/add.go

@@ -1,6 +1,8 @@
 package userkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -24,8 +26,8 @@ func (v Validator) ValidateAddRequest(req param.KindBoxReqAddRequest) (map[strin
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -40,5 +42,5 @@ func (v Validator) ValidateAddRequest(req param.KindBoxReqAddRequest) (map[strin
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box_req/delete.go

@@ -1,6 +1,8 @@
 package userkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -23,8 +25,8 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxReqDeleteRequest) (map
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -39,5 +41,5 @@ func (v Validator) ValidateDeleteRequest(req param.KindBoxReqDeleteRequest) (map
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box_req/get.go

@@ -1,6 +1,8 @@
 package userkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -22,8 +24,8 @@ func (v Validator) ValidateGetRequest(req param.KindBoxReqGetRequest) (map[strin
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -38,5 +40,5 @@ func (v Validator) ValidateGetRequest(req param.KindBoxReqGetRequest) (map[strin
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box_req/get_all.go

@@ -1,6 +1,8 @@
 package userkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -17,8 +19,8 @@ func (v Validator) ValidateGetAllRequest(req param.KindBoxReqGetAllRequest) (map
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -33,5 +35,5 @@ func (v Validator) ValidateGetAllRequest(req param.KindBoxReqGetAllRequest) (map
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box_req/update.go

@@ -1,6 +1,8 @@
 package userkindboxreqvalidator
 
 import (
+	"errors"
+
 	param "git.gocasts.ir/ebhomengo/niki/param/benefactor/kind_box_req"
 	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
 	richerror "git.gocasts.ir/ebhomengo/niki/pkg/rich_error"
@@ -25,12 +27,12 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxReqUpdateRequest) (map
 
 		validation.Field(&req.TypeID,
 			validation.Required,
-			validation.By(v.doesTypeExist(req.TypeID))),
+			validation.By(v.doesTypeExist)),
 	); err != nil {
 		fieldErrors := make(map[string]string)
 
-		errV, ok := err.(validation.Errors)
-		if ok {
+		var errV validation.Errors
+		if errors.As(err, &errV) {
 			for key, value := range errV {
 				if value != nil {
 					fieldErrors[key] = value.Error()
@@ -45,5 +47,5 @@ func (v Validator) ValidateUpdateRequest(req param.KindBoxReqUpdateRequest) (map
 			WithErr(err)
 	}
 
-	return nil, nil
+	return map[string]string{}, nil
 }

validator/benefactor/kind_box_req/validator.go

@@ -16,7 +16,7 @@ type Repository interface {
 	BenefactorExist(id uint) (bool, error)
 	KindBoxReqExist(id uint) (bool, error)
 	TypeExist(id uint) (bool, error)
-	KindBoxBelongToBenefactor(bId uint, kbId uint) (bool, error)
+	KindBoxBelongToBenefactor(bID uint, kbID uint) (bool, error)
 	PendingStatus(id uint) (bool, error)
 }
 
@@ -29,7 +29,10 @@ func New(repo Repository) Validator {
 }
 
 func (v Validator) doesBenefactorExist(value interface{}) error {
-	benefactorID := value.(uint)
+	benefactorID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.BenefactorExist(benefactorID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -39,7 +42,10 @@ func (v Validator) doesBenefactorExist(value interface{}) error {
 }
 
 func (v Validator) doesTypeExist(value interface{}) error {
-	typeID := value.(uint)
+	typeID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.TypeExist(typeID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -49,7 +55,10 @@ func (v Validator) doesTypeExist(value interface{}) error {
 }
 
 func (v Validator) doesKindBoxRequestExist(value interface{}) error {
-	kindBoxReqID := value.(uint)
+	kindBoxReqID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.KindBoxReqExist(kindBoxReqID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
@@ -60,8 +69,11 @@ func (v Validator) doesKindBoxRequestExist(value interface{}) error {
 
 func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.RuleFunc {
 	return func(value interface{}) error {
-		kbId := value.(uint)
-		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbId)
+		kbID, ok := value.(uint)
+		if !ok {
+			return fmt.Errorf(errmsg.ErrorMsgNotFound)
+		}
+		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbID)
 		if err != nil {
 			return fmt.Errorf(errmsg.ErrorMsgNotFound)
 		}
@@ -71,7 +83,10 @@ func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.R
 }
 
 func (v Validator) hasPendingStatus(value interface{}) error {
-	kindboxID := value.(uint)
+	kindboxID, ok := value.(uint)
+	if !ok {
+		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
+	}
 	_, err := v.repo.PendingStatus(kindboxID)
 	if err != nil {
 		return fmt.Errorf(errmsg.ErrorMsgNotFound)