fix feed empty list rendering

backend/internal/feed/handler.go

@@ -37,6 +37,7 @@ func (f *FeedHandler) ListLatest(c *gin.Context) {
 		c.JSON(500, gin.H{"error": err.Error()})
 		return
 	}
+	feedItems.VideoList = nonNilFeedVideoItems(feedItems.VideoList)
 	c.JSON(200, feedItems)
 }
 
@@ -85,6 +86,7 @@ func (f *FeedHandler) ListLikesCount(c *gin.Context) {
 		c.JSON(500, gin.H{"error": err.Error()})
 		return
 	}
+	feedItems.VideoList = nonNilFeedVideoItems(feedItems.VideoList)
 	c.JSON(200, feedItems)
 }
 
@@ -110,6 +112,7 @@ func (f *FeedHandler) ListByFollowing(c *gin.Context) {
 		c.JSON(500, gin.H{"error": err.Error()})
 		return
 	}
+	feedItems.VideoList = nonNilFeedVideoItems(feedItems.VideoList)
 	c.JSON(200, feedItems)
 }
 
@@ -160,5 +163,13 @@ func (f *FeedHandler) ListByPopularity(c *gin.Context) {
 		c.JSON(500, gin.H{"error": err.Error()})
 		return
 	}
+	resp.VideoList = nonNilFeedVideoItems(resp.VideoList)
 	c.JSON(200, resp)
 }
+
+func nonNilFeedVideoItems(items []FeedVideoItem) []FeedVideoItem {
+	if items == nil {
+		return []FeedVideoItem{}
+	}
+	return items
+}

backend/internal/social/handler.go

@@ -1,6 +1,7 @@
 package social
 
 import (
+	"feedsystem_video_go/internal/account"
 	"feedsystem_video_go/internal/middleware/jwt"
 	"net/http"
 
@@ -89,6 +90,9 @@ func (h *SocialHandler) GetAllFollowers(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
+	if followers == nil {
+		followers = []*account.Account{}
+	}
 	c.JSON(http.StatusOK, GetAllFollowersResponse{Followers: followers})
 }
 
@@ -114,5 +118,8 @@ func (h *SocialHandler) GetAllVloggers(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
+	if vloggers == nil {
+		vloggers = []*account.Account{}
+	}
 	c.JSON(http.StatusOK, GetAllVloggersResponse{Vloggers: vloggers})
 }

backend/internal/video/comment_handler.go

@@ -90,5 +90,8 @@ func (h *CommentHandler) GetAllComments(c *gin.Context) {
 		c.JSON(400, gin.H{"error": err.Error()})
 		return
 	}
+	if comments == nil {
+		comments = []Comment{}
+	}
 	c.JSON(200, comments)
 }

backend/internal/video/like_handler.go

@@ -106,5 +106,8 @@ func (lh *LikeHandler) ListMyLikedVideos(c *gin.Context) {
 		c.JSON(500, gin.H{"error": err.Error()})
 		return
 	}
+	if videos == nil {
+		videos = []Video{}
+	}
 	c.JSON(200, videos)
 }

backend/internal/video/video_handler.go

@@ -207,6 +207,9 @@ func (vh *VideoHandler) ListByAuthorID(c *gin.Context) {
 		c.JSON(400, gin.H{"error": err.Error()})
 		return
 	}
+	if videos == nil {
+		videos = []Video{}
+	}
 	c.JSON(200, videos)
 }