diff --git a/pkg/services/auth.go b/pkg/services/auth.go
index f0a3180..dd8cf78 100644
--- a/pkg/services/auth.go
+++ b/pkg/services/auth.go
@@ -12,6 +12,7 @@ import (
 	"math/big"
 	"net"
 	"net/http"
+	"slices"
 	"strconv"
 	"time"
 
@@ -257,7 +258,8 @@ func (e *extendedService) AuthWs(w http.ResponseWriter, r *http.Request) {
 					conn.WriteJSON(map[string]any{"type": "auth", "payload": session, "message": "success"})
 				}()
 			case "phone":
-				if message.Message == "sendcode" {
+				switch message.Message {
+				case "sendcode":
 					go func() {
 						res, err := tgClient.Auth().SendCode(ctx, message.PhoneNo, tgauth.SendCodeOptions{})
 						if errors.Is(err, context.Canceled) {
@@ -271,7 +273,7 @@ func (e *extendedService) AuthWs(w http.ResponseWriter, r *http.Request) {
 						code := res.(*tg.AuthSentCode)
 						conn.WriteJSON(map[string]any{"type": "auth", "payload": map[string]string{"phoneCodeHash": code.PhoneCodeHash}})
 					}()
-				} else if message.Message == "signin" {
+				case "signin":
 					go func() {
 						auth, err := tgClient.Auth().SignIn(ctx, message.PhoneNo, message.PhoneCode, message.PhoneCodeHash)
 						if errors.Is(err, context.Canceled) {
@@ -389,11 +391,8 @@ func generateTgSession(dcId int, authKey []byte, port int) string {
 func checkUserIsAllowed(allowedUsers []string, userName string) bool {
 	found := false
 	if len(allowedUsers) > 0 {
-		for _, user := range allowedUsers {
-			if user == userName {
-				found = true
-				break
-			}
+		if slices.Contains(allowedUsers, userName) {
+			found = true
 		}
 	} else {
 		found = true
diff --git a/pkg/services/file.go b/pkg/services/file.go
index efad2a3..7d3eb53 100644
--- a/pkg/services/file.go
+++ b/pkg/services/file.go
@@ -273,10 +273,11 @@ func (a *apiService) FilesCreate(ctx context.Context, fileIn *api.File) (*api.Fi
 
 	}
 
-	if fileIn.Type == "folder" {
+	switch fileIn.Type {
+	case "folder":
 		fileDB.MimeType = "drive/folder"
 		fileDB.Parts = nil
-	} else if fileIn.Type == "file" {
+	case "file":
 		if fileIn.ChannelId.Value == 0 {
 			channelId, err = getDefaultChannel(a.db, a.cache, userId)
 			if err != nil {
diff --git a/pkg/services/file_query_builder.go b/pkg/services/file_query_builder.go
index 3862157..7e44513 100644
--- a/pkg/services/file_query_builder.go
+++ b/pkg/services/file_query_builder.go
@@ -29,9 +29,10 @@ var selectedFields = []string{"id", "name", "type", "mime_type", "category", "ch
 
 func (afb *fileQueryBuilder) execute(filesQuery *api.FilesListParams, userId int64) (*api.FileList, error) {
 	query := afb.db.Where("user_id = ?", userId).Where("status = ?", filesQuery.Status.Value)
-	if filesQuery.Operation.Value == api.FileQueryOperationList {
+	switch filesQuery.Operation.Value {
+	case api.FileQueryOperationList:
 		query = afb.applyListFilters(query, filesQuery, userId)
-	} else if filesQuery.Operation.Value == api.FileQueryOperationFind {
+	case api.FileQueryOperationFind:
 		query = afb.applyFindFilters(query, filesQuery, userId)
 
 	}
@@ -152,9 +153,10 @@ func (afb *fileQueryBuilder) applySingleDateFilter(query *gorm.DB, dateFilter st
 }
 
 func (afb *fileQueryBuilder) applySearchQuery(query *gorm.DB, filesQuery *api.FilesListParams) *gorm.DB {
-	if filesQuery.SearchType.Value == api.FileQuerySearchTypeText {
+	switch filesQuery.SearchType.Value {
+	case api.FileQuerySearchTypeText:
 		query = query.Where("name &@~ lower(regexp_replace(?, '[^[:alnum:]\\s]', ' ', 'g'))", filesQuery.Query.Value)
-	} else if filesQuery.SearchType.Value == api.FileQuerySearchTypeRegex {
+	case api.FileQuerySearchTypeRegex:
 		query = query.Where("name &~ ?", filesQuery.Query.Value)
 	}
 	return query