implemented post creation, deletion and update api

backend/handlers/handle_post.go

@@ -8,9 +8,9 @@ import (
 )
 
 type CreatePostInput struct {
-	Title    string `json:"title" binding:"required"`
-	Content  string `json:"content" binding:"required"`
-	AuthorID uint   `json:"authorID" binding:"required"`
+	Title   string `json:"title" binding:"required"`
+	Content string `json:"content" binding:"required"`
+	Author  string `json:"author" binding:"required"`
 }
 
 func (h *Handler) GetPosts(c *gin.Context) {
@@ -30,12 +30,30 @@ func (h *Handler) CreatePost(c *gin.Context) {
 	}
 
 	// Create post
-	post := models.Post{Title: input.Title, Content: input.Content, AuthorID: input.AuthorID}
+	post := models.Post{Title: input.Title, Content: input.Content, Author: input.Author}
 	h.DB.Create(&post)
 
 	c.JSON(http.StatusOK, gin.H{"data": post})
 }
 
 func (h *Handler) UpdatePost(c *gin.Context) {
+	id := c.Param("id")
+	var post models.Post
+	if err := h.DB.First(&post, id).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
 
+	var input CreatePostInput
+	if err := c.ShouldBindBodyWithJSON(&input); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	post.Title = input.Title
+	post.Content = input.Content
+	post.Author = input.Author
+	h.DB.Save(&post)
+
+	c.JSON(http.StatusOK, gin.H{"data": post})
 }

backend/main.go

@@ -47,9 +47,11 @@ func main() {
 	}
 
 	r := gin.Default()
+	h := handlers.Handler{DB: db}
 
-	r.GET("/books", handlers.GetPosts)
-	r.POST("/books", handlers.CreatePost)
+	r.GET("/posts", h.GetPosts)
+	r.POST("/posts", h.CreatePost)
+	r.PUT("/posts/:id", h.UpdatePost)
 
 	r.GET("/", func(c *gin.Context) {
 		c.JSON(200, gin.H{"message": "Hello World"})

backend/models/post.go

@@ -6,5 +6,5 @@ type Post struct {
 	gorm.Model        // includes ID, CreatedAt, UpdatedAt, DeletedAt
 	Title      string `gorm:"not null"`
 	Content    string `gorm:"type:text; not null"`
-	AuthorID   uint   // foreign key to User
+	Author     string `gorm:"not null"`
 }