package main
import (
"net/http"
"github.com/gin-gonic/gin"
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/mysql"
)
func Database() *gorm.DB {
//open a db connection
db, err := gorm.Open("mysql", "root:pass@tcp(127.0.0.1:8889)/gotest?parseTime=true")
if err != nil {
panic("failed to connect database")
}
return db
}
func main() {
//Migrate the schema
db := Database()
db.AutoMigrate(&Product{})
router := gin.Default()
router.GET("/", startPage)
router.LoadHTMLGlob("templates/*")
v1 := router.Group("/api/v1/")
{
v1.POST("product/", CreateProduct)
v1.GET("product/", FetchAllProduct)
v1.GET("product/:id", FetchSingleProduct)
v1.PUT("product/:id", UpdateProduct)
v1.DELETE("product/:id", DeleteProduct)
}
router.Run()
}
type Product struct {
gorm.Model
Name string `json:"name"`
Description string `json:"description"`
Images string `json:"images"`
Price string `json:"price"`
}
type TransformedProduct struct {
ID uint `json:"id"`
Name string `json:"name"`
Description string `json:"description"`
Images string `json:"images"`
Price string `json:"price"`
}
func CreateProduct(c *gin.Context) {
product := Product{
Name: c.PostForm("name"),
Description: c.PostForm("description"),
Images: c.PostForm("images"),
Price: c.PostForm("price"),
}
db := Database()
db.Save(&product)
c.JSON(http.StatusCreated, gin.H{"status": http.StatusCreated, "message": "Product item created successfully!", "resourceId": product.ID})
}
func FetchAllProduct(c *gin.Context) {
var products []Product
var _products []TransformedProduct
db := Database()
db.Find(&products)
if len(products) <= 0 {
c.JSON(http.StatusNotFound, gin.H{"status": http.StatusNotFound, "message": "No todo found!"})
return
}
//transforms the todos for building a good response
for _, item := range products {
_products = append(
_products, TransformedProduct{
ID: item.ID,
Name: item.Name,
Description: item.Description,
Images: item.Images,
Price: item.Price,
})
}
c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "data": _products})
}
func FetchSingleProduct(c *gin.Context) {
var product Product
productId := c.Param("id")
db := Database()
db.First(&product, productId)
if product.ID == 0 {
c.JSON(http.StatusNotFound, gin.H{"status": http.StatusNotFound, "message": "No product found!"})
return
}
_product := TransformedProduct{
ID: product.ID,
Name: product.Name,
Description: product.Description,
Images: product.Images,
Price: product.Price,
}
c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "data": _product})
}
func UpdateProduct(c *gin.Context) {
var product Product
tproductId := c.Param("id")
db := Database()
db.First(&product, tproductId)
if product.ID == 0 {
c.JSON(http.StatusNotFound, gin.H{"status": http.StatusNotFound, "message": "No product found!"})
return
}
db.Model(&product).Update("name", c.PostForm("name"))
db.Model(&product).Update("descroption", c.PostForm("descroption"))
db.Model(&product).Update("images", c.PostForm("images"))
db.Model(&product).Update("price", c.PostForm("price"))
c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "message": "Product updated successfully!"})
}
func DeleteProduct(c *gin.Context) {
var product Product
productId := c.Param("id")
db := Database()
db.First(&product, productId)
if product.ID == 0 {
c.JSON(http.StatusNotFound, gin.H{"status": http.StatusNotFound, "message": "No product found!"})
return
}
db.Delete(&product)
c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "message": "product deleted successfully!"})
}
func startPage(c *gin.Context) {
c.HTML(http.StatusOK, "index.tmpl", gin.H{
"title": "simple api gin",
})
}