Simple File Server using golang

main.go

package main

import (
	"log"
	"fmt"
	"os"
	"path/filepath"
  "net/http"
  "github.com/gin-gonic/gin"
)

func main() {
  r := gin.Default()

  r.GET("/", func(c *gin.Context) {
    c.JSON(http.StatusOK, gin.H{"data": "hello world"})    
  })
  r.GET("/file", func(c *gin.Context){
	
	file_path := c.Query("file_path")
	log.Println("file name receievd--->", file_path)
	c.File(file_path)
  })

  r.POST("/upload", func(c *gin.Context) {
	// Single file
	file, err := c.FormFile("file")
	filePath := c.PostForm("file_path")
	if err != nil {
		c.String(http.StatusBadRequest, "get form err: %s", err.Error())
		return
	}


	log.Println("file name receievd in post", err)
	log.Println("file name Path ------->", filePath)
	log.Println("file name receievd", file.Filename)
	filename := filepath.Base(file.Filename);
	if filePath != "" {
		filename = filepath.Join(filePath, file.Filename);	
	} 
	if _, err := os.Stat(filePath); os.IsNotExist(err) {
		err := os.Mkdir(filePath, os.ModePerm)
		if err != nil {
			log.Println("mkdir err", err)
		}
	}
	
	if err := c.SaveUploadedFile(file, filename); err != nil {
		c.String(http.StatusBadRequest, "upload file err: %s", err.Error())
		return
	}

	
	

	c.String(http.StatusOK, fmt.Sprintf("'%s' uploaded!", file.Filename))
})


  r.Run()
}