add new errors

go-backend/pkg/errors/errors.go

@@ -18,6 +18,7 @@ type ValidationKeys struct {
 	NotFound                    string
 	InUse                       string
 	UndeliveredVerificationMail string
+	UserAlreadyVerified         string
 }
 
 type ValidationFields struct {
@@ -28,6 +29,7 @@ type ValidationFields struct {
 	Email              string
 	User               string
 	Licences           string
+	Verification       string
 }
 
 var (
@@ -72,6 +74,7 @@ var Responses = struct {
 		NotFound:                    "server.error.not_found",
 		InUse:                       "server.error.in_use",
 		UndeliveredVerificationMail: "server.error.undelivered_verification_mail",
+		UserAlreadyVerified:         "server.validation.user_already_verified",
 	},
 	Fields: ValidationFields{
 		General:            "server.general",
@@ -81,5 +84,10 @@ var Responses = struct {
 		Email:              "user.email",
 		User:               "user.user",
 		Licences:           "licence",
+		Verification:       "verification",
 	},
 }
+
+func Is(err error, target error) bool {
+	return errors.Is(err, target)
+}