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feat: add like/unlike post endpoint
1 parent c3a5d9c commit 96c2ae9

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15 files changed

+348
-23
lines changed

15 files changed

+348
-23
lines changed

‎controller/likes_controller.go‎

Lines changed: 72 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,72 @@
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package controller
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import (
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"net/http"
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"strconv"
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"github.com/Lab-RPL-ITS/twitter-clone-api/dto"
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"github.com/Lab-RPL-ITS/twitter-clone-api/service"
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"github.com/Lab-RPL-ITS/twitter-clone-api/utils"
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"github.com/gin-gonic/gin"
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)
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type (
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LikesController interface {
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LikePostById(ctx *gin.Context)
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UnlikePostById(ctx *gin.Context)
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}
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likesController struct {
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likesService service.LikesService
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}
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)
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func NewLikesController(likesService service.LikesService) LikesController {
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return &likesController{
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likesService: likesService,
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}
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}
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func (c *likesController) LikePostById(ctx *gin.Context) {
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postId := ctx.Param("post_id")
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userId := ctx.GetString("user_id")
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postIdUint, err := strconv.ParseUint(postId, 10, 64)
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if err != nil {
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response := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_POST_ID, err.Error(), nil)
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ctx.JSON(http.StatusBadRequest, response)
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return
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}
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err = c.likesService.LikePostById(ctx, postIdUint, userId)
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if err != nil {
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response := utils.BuildResponseFailed(dto.MESSAGE_FAILED_LIKE_POST, err.Error(), nil)
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ctx.JSON(http.StatusBadRequest, response)
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return
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}
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response := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_LIKE_POST, nil)
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ctx.JSON(http.StatusOK, response)
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}
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func (c *likesController) UnlikePostById(ctx *gin.Context) {
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postId := ctx.Param("post_id")
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userId := ctx.GetString("user_id")
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postIdUint, err := strconv.ParseUint(postId, 10, 64)
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if err != nil {
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response := utils.BuildResponseFailed(dto.MESSAGE_FAILED_GET_POST_ID, err.Error(), nil)
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ctx.JSON(http.StatusBadRequest, response)
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return
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}
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err = c.likesService.UnLikePostById(ctx, postIdUint, userId)
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if err != nil {
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response := utils.BuildResponseFailed(dto.MESSAGE_FAILED_UNLIKE_POST, err.Error(), nil)
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ctx.JSON(http.StatusBadRequest, response)
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return
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}
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response := utils.BuildResponseSuccess(dto.MESSAGE_SUCCESS_UNLIKE_POST, nil)
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ctx.JSON(http.StatusOK, response)
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}

‎dto/likes_dto.go‎

Lines changed: 25 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,25 @@
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package dto
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import "errors"
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const (
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// Failed
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MESSAGE_FAILED_LIKE_POST = "failed like post"
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MESSAGE_FAILED_UNLIKE_POST = "failed unlike post"
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// Succcess
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MESSAGE_SUCCESS_LIKE_POST = "success like post"
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MESSAGE_SUCCESS_UNLIKE_POST = "success unlike post"
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)
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var (
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ErrLikePostById = errors.New("failed to like post")
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ErrCheckLikedPost = errors.New("failed to check liked post")
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ErrUnlikePostById = errors.New("failed to unlike post")
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)
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type (
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LikesRequest struct {
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PostID uint64 `json:"post_id" form:"post_id" binding:"required"`
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}
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)

‎dto/post_dto.go‎

Lines changed: 6 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -38,11 +38,12 @@ type (
3838
}
3939

4040
PostResponse struct {
41-
ID uint64 `json:"id"`
42-
Text string `json:"text"`
43-
ParentID *uint64 `json:"parent_id"`
44-
User UserResponse `json:"user"`
45-
Replies []PostResponse `json:"replies,omitempty"`
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ID uint64 `json:"id"`
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Text string `json:"text"`
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TotalLikes uint64 `json:"total_likes"`
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ParentID *uint64 `json:"parent_id"`
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User UserResponse `json:"user"`
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Replies []PostResponse `json:"replies,omitempty"`
4647
}
4748

4849
PostUpdateRequest struct {

‎entity/likes_entity.go‎

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1+
package entity
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3+
import "github.com/google/uuid"
4+
5+
type Like struct {
6+
PostID uint64 `gorm:"primaryKey;not null" json:"post_id"`
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Post Post `gorm:"foreignkey:PostID" json:"post"`
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9+
UserID uuid.UUID `gorm:"primaryKey;not null" json:"user_id"`
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User User `gorm:"foreignkey:UserID" json:"user"`
11+
12+
Timestamp
13+
}

‎entity/post_entity.go‎

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -3,8 +3,9 @@ package entity
33
import "github.com/google/uuid"
44

55
type Post struct {
6-
ID uint64 `gorm:"primary_key;autoIncrement" json:"id"`
7-
Text string `gorm:"not null" json:"text"`
6+
ID uint64 `gorm:"primaryKey;autoIncrement" json:"id"`
7+
Text string `gorm:"not null" json:"text"`
8+
TotalLikes uint64 `gorm:"default:0" json:"total_likes"`
89

910
Parent *Post `gorm:"foreignkey:ParentID" json:"parent,omitempty"`
1011
ParentID *uint64 `json:"parent_id,omitempty"`

‎entity/user_entity.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@ import (
77
)
88

99
type User struct {
10-
ID uuid.UUID `gorm:"type:uuid;primary_key;default:uuid_generate_v4()" json:"id"`
10+
ID uuid.UUID `gorm:"type:uuid;primaryKey;default:uuid_generate_v4()" json:"id"`
1111
Name string `gorm:"not null" json:"name"`
1212
Username string `gorm:"not null" gorm:"unique" json:"username"`
1313
Bio *string `json:"bio"`

‎migrations/migrate.go‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -9,6 +9,7 @@ func Migrate(db *gorm.DB) error {
99
if err := db.AutoMigrate(
1010
&entity.User{},
1111
&entity.Post{},
12+
&entity.Like{},
1213
); err != nil {
1314
return err
1415
}

‎provider/core.go‎

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -23,4 +23,5 @@ func RegisterDependencies(injector *do.Injector) {
2323

2424
ProvideUserDependencies(injector)
2525
ProvidePostDependencies(injector)
26+
ProvideLikesDependencies(injector)
2627
}

‎provider/likes_provider.go‎

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,27 @@
1+
package provider
2+
3+
import (
4+
"github.com/Lab-RPL-ITS/twitter-clone-api/constants"
5+
"github.com/Lab-RPL-ITS/twitter-clone-api/controller"
6+
"github.com/Lab-RPL-ITS/twitter-clone-api/repository"
7+
"github.com/Lab-RPL-ITS/twitter-clone-api/service"
8+
"github.com/samber/do"
9+
"gorm.io/gorm"
10+
)
11+
12+
func ProvideLikesDependencies(injector *do.Injector) {
13+
db := do.MustInvokeNamed[*gorm.DB](injector, constants.DB)
14+
jwtService := do.MustInvokeNamed[service.JWTService](injector, constants.JWTService)
15+
16+
// Repository
17+
likesRepository := repository.NewLikesRepository(db)
18+
postRepository := repository.NewPostRepository(db)
19+
20+
// Service
21+
likesService := service.NewLikesService(likesRepository, postRepository, jwtService)
22+
23+
// Controller
24+
do.Provide(injector, func(i *do.Injector) (controller.LikesController, error) {
25+
return controller.NewLikesController(likesService), nil
26+
})
27+
}

‎repository/likes_repository.go‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,77 @@
1+
package repository
2+
3+
import (
4+
"context"
5+
6+
"github.com/Lab-RPL-ITS/twitter-clone-api/entity"
7+
"github.com/google/uuid"
8+
"gorm.io/gorm"
9+
)
10+
11+
type (
12+
LikesRepository interface {
13+
LikePostById(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error
14+
CheckLikedPost(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error
15+
ErrUnlikePostById(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error
16+
}
17+
18+
likesRepository struct {
19+
db *gorm.DB
20+
}
21+
)
22+
23+
func NewLikesRepository(db *gorm.DB) LikesRepository {
24+
return &likesRepository{
25+
db: db,
26+
}
27+
}
28+
29+
func (r *likesRepository) LikePostById(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error {
30+
if tx == nil {
31+
tx = r.db
32+
}
33+
34+
likes := &entity.Like{
35+
UserID: uuid.MustParse(userId),
36+
PostID: postId,
37+
}
38+
39+
if err := tx.WithContext(ctx).Create(&likes).Error; err != nil {
40+
return err
41+
}
42+
43+
return nil
44+
}
45+
46+
func (r *likesRepository) CheckLikedPost(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error {
47+
if tx == nil {
48+
tx = r.db
49+
}
50+
51+
likes := &entity.Like{
52+
UserID: uuid.MustParse(userId),
53+
PostID: postId,
54+
}
55+
56+
if err := tx.WithContext(ctx).Where("user_id = ? AND post_id = ?", userId, postId).First(&likes).Error; err != nil {
57+
return err
58+
}
59+
return nil
60+
}
61+
62+
func (r *likesRepository) ErrUnlikePostById(ctx context.Context, tx *gorm.DB, postId uint64, userId string) error {
63+
if tx == nil {
64+
tx = r.db
65+
}
66+
67+
likes := &entity.Like{
68+
UserID: uuid.MustParse(userId),
69+
PostID: postId,
70+
}
71+
72+
if err := tx.WithContext(ctx).Where("user_id = ? AND post_id = ?", userId, postId).Delete(&likes).Error; err != nil {
73+
return err
74+
}
75+
76+
return nil
77+
}

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