Convert Response

Author: zumardirahman

handler/book.go

@@ -3,6 +3,7 @@ package handler
 import (
 	"fmt"
 	"net/http"
+	"strconv"
 
 	"github.com/gin-gonic/gin"
 	"github.com/go-playground/validator/v10"
@@ -29,14 +30,7 @@ func (h *bookHandler) GetBooks(c *gin.Context) {
 	var booksResponse []book.BookResponse
 
 	for _, b := range books {
-		bookResponse := book.BookResponse{
-			ID:          b.ID,
-			Title:       b.Title,
-			Price:       b.Price,
-			Description: b.Description,
-			Rating:      b.Rating,
-			Discount:    b.Discount,
-		}
+		bookResponse := convertToBookResponse(b)
 
 		booksResponse = append(booksResponse, bookResponse)
 	}
@@ -46,6 +40,25 @@ func (h *bookHandler) GetBooks(c *gin.Context) {
 	})
 }
 
+func (h *bookHandler) GetBook(c *gin.Context) {
+	idString := c.Param("id")
+	id, _ := strconv.Atoi(idString)
+
+	b, err := h.bookService.FindByID(id)
+
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"errors": err,
+		})
+	}
+
+	bookResponse := convertToBookResponse(b)
+
+	c.JSON(http.StatusOK, gin.H{
+		"data": bookResponse,
+	})
+}
+
 func (h *bookHandler) PostBooksHandler(c *gin.Context) {
 	var bookRequest book.BookRequest
 
@@ -78,3 +91,14 @@ func (h *bookHandler) PostBooksHandler(c *gin.Context) {
 		"data": book,
 	})
 }
+
+func convertToBookResponse(b book.Book) book.BookResponse {
+	return book.BookResponse{
+		ID:          b.ID,
+		Title:       b.Title,
+		Price:       b.Price,
+		Description: b.Description,
+		Rating:      b.Rating,
+		Discount:    b.Discount,
+	}
+}

main.go

@@ -32,6 +32,7 @@ func main() {
 
 	v1 := router.Group("/v1")
 	v1.GET("/books", bookHandler.GetBooks)
+	v1.GET("/books/:id", bookHandler.GetBook) // :id akan dapat berubah
 
 	v1.POST("/books", bookHandler.PostBooksHandler)
 	//alur post data