feat: add redis control in banner feature

config/connection.go

@@ -31,6 +31,10 @@ var (
 	RedisDB       int
 )
 
+func Context() context.Context {
+	return context.Background()
+}
+
 func InitConfig() {
 	ServerHost = os.Getenv("SERVER_HOST")
 	ServerPort = os.Getenv("SERVER_PORT")

internal/repositories/banner.go

@@ -1,6 +1,9 @@
 package repositories
 
 import (
+	"encoding/json"
+	"time"
+
 	"github.com/pahmiudahgede/senggoldong/config"
 	"github.com/pahmiudahgede/senggoldong/domain"
 )
@@ -8,18 +11,52 @@ import (
 func GetBanners() ([]domain.Banner, error) {
 	var banners []domain.Banner
 
+	ctx := config.Context()
+	cachedBanners, err := config.RedisClient.Get(ctx, "banners").Result()
+	if err == nil && cachedBanners != "" {
+
+		if err := json.Unmarshal([]byte(cachedBanners), &banners); err != nil {
+			return nil, err
+		}
+		return banners, nil
+	}
+
 	if err := config.DB.Find(&banners).Error; err != nil {
 		return nil, err
 	}
+
+	bannersJSON, err := json.Marshal(banners)
+	if err != nil {
+		return nil, err
+	}
+	config.RedisClient.Set(ctx, "banners", bannersJSON, time.Hour).Err()
+
 	return banners, nil
 }
 
 func GetBannerByID(id string) (domain.Banner, error) {
 	var banner domain.Banner
 
+	ctx := config.Context()
+	cachedBanner, err := config.RedisClient.Get(ctx, "banner:"+id).Result()
+	if err == nil && cachedBanner != "" {
+
+		if err := json.Unmarshal([]byte(cachedBanner), &banner); err != nil {
+			return banner, err
+		}
+		return banner, nil
+	}
+
 	if err := config.DB.Where("id = ?", id).First(&banner).Error; err != nil {
 		return banner, err
 	}
+
+	bannerJSON, err := json.Marshal(banner)
+	if err != nil {
+		return banner, err
+	}
+	config.RedisClient.Set(ctx, "banner:"+id, bannerJSON, time.Hour*24).Err()
+
 	return banner, nil
 }
 
@@ -27,6 +64,8 @@ func CreateBanner(banner *domain.Banner) error {
 	if err := config.DB.Create(banner).Error; err != nil {
 		return err
 	}
+
+	config.RedisClient.Del(config.Context(), "banners")
 	return nil
 }
 
@@ -34,6 +73,9 @@ func UpdateBanner(banner *domain.Banner) error {
 	if err := config.DB.Save(banner).Error; err != nil {
 		return err
 	}
+
+	config.RedisClient.Del(config.Context(), "banners")
+	config.RedisClient.Del(config.Context(), "banner:"+banner.ID)
 	return nil
 }
 
@@ -41,5 +83,8 @@ func DeleteBanner(id string) error {
 	if err := config.DB.Where("id = ?", id).Delete(&domain.Banner{}).Error; err != nil {
 		return err
 	}
+
+	config.RedisClient.Del(config.Context(), "banners")
+	config.RedisClient.Del(config.Context(), "banner:"+id)
 	return nil
-}
+}

internal/services/banner.go

@@ -2,7 +2,6 @@ package services
 
 import (
 	"errors"
-
 	"github.com/pahmiudahgede/senggoldong/domain"
 	"github.com/pahmiudahgede/senggoldong/internal/repositories"
 )
@@ -14,7 +13,6 @@ func GetBanners() ([]domain.Banner, error) {
 func GetBannerByID(id string) (domain.Banner, error) {
 	banner, err := repositories.GetBannerByID(id)
 	if err != nil {
-
 		return domain.Banner{}, errors.New("banner not found")
 	}
 	return banner, nil
@@ -34,7 +32,6 @@ func CreateBanner(bannerName, bannerImage string) (domain.Banner, error) {
 }
 
 func UpdateBanner(id, bannerName, bannerImage string) (domain.Banner, error) {
-
 	banner, err := repositories.GetBannerByID(id)
 	if err != nil {
 		return domain.Banner{}, err
@@ -51,7 +48,6 @@ func UpdateBanner(id, bannerName, bannerImage string) (domain.Banner, error) {
 }
 
 func DeleteBanner(id string) error {
-
 	_, err := repositories.GetBannerByID(id)
 	if err != nil {
 		return errors.New("banner not found")