app.go

package main

import (
	"log"
	"net/http"

	"github.com/gin-gonic/gin"

	"github.com/jinzhu/gorm"
	_ "github.com/jinzhu/gorm/dialects/sqlite"
)

// Product type
type Product struct {
	ID    uint   `json:”id”`
	Code  string `json:”code”`
	Price uint   `json:”price”`
}

func main() {

	r := gin.Default()

	r.GET("/hello", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{
			"greet": "hello, world!",
		})
	})

	r.GET("/echo/:echo", func(c *gin.Context) {
		echo := c.Param("echo")
		c.JSON(http.StatusOK, gin.H{
			"echo": echo,
		})
	})

	r.POST("/upload", func(c *gin.Context) {
		form, _ := c.MultipartForm()
		files := form.File["upload[]"]

		for _, file := range files {
			log.Println(file.Filename)

			// Upload the file to specific dst.
			// c.SaveUploadedFile(file, dst)
		}
		c.JSON(http.StatusOK, gin.H{
			"uploaded": len(files),
		})
	})

	r.GET("/products", GetProducts)

	r.Run() // listen and serve on 0.0.0.0:8080
}

func GetProducts(c *gin.Context) {

	db, err := gorm.Open("sqlite3", "test.db")
	if err != nil {
		panic("failed to connect database")
	}
	defer db.Close()
	db.AutoMigrate(&Product{})

	var products []Product

	if err := db.Find(&products).Error; err != nil {
		c.AbortWithStatus(http.StatusInternalServerError)
		log.Println(err)
	} else {
		c.JSON(http.StatusOK, products)
		log.Println(products)
	}

}