File not uploaded to directory using go - go

Question

Am trying to upload files to a directory using go code below.
source
The Issue am having is that when I run the code, it prints files successfully uploaded
but when I get to the directory, No file is uploaded there. Any solution will be appreciated. Thanks
package main
import (
"fmt"
"io"
"net/http"
"os"
)
func uploadHandler(w http.ResponseWriter, r *http.Request) {
// the FormFile function takes in the POST input id file
file, header, err := r.FormFile("file")
if err != nil {
fmt.Fprintln(w, err)
return
}
defer file.Close()
out, err := os.Create("/upload")
if err != nil {
fmt.Fprintf(w, "Unable to create the file for writing. Check your write access privilege")
return
}
defer out.Close()
// write the content from POST to the file
_, err = io.Copy(out, file)
if err != nil {
fmt.Fprintln(w, err)
}
fmt.Fprintf(w, "File uploaded successfully : ")
fmt.Fprintf(w, header.Filename)
}
func main() {
http.HandleFunc("/", uploadHandler)
http.ListenAndServe(":8080", nil)
}

Answer 1

Below is how I get my files uploaded to server.
Source
package main
import (
"fmt"
"io/ioutil"
"net/http"
)
func uploadFile(w http.ResponseWriter, r *http.Request) {
fmt.Println("File Upload Endpoint Hit")
// Parse our multipart form, 10 << 20 specifies a maximum
// upload of 10 MB files.
r.ParseMultipartForm(10 << 20)
// FormFile returns the first file for the given key `myFile`
// it also returns the FileHeader so we can get the Filename,
// the Header and the size of the file
file, handler, err := r.FormFile("myFile")
if err != nil {
fmt.Println("Error Retrieving the File")
fmt.Println(err)
return
}
defer file.Close()
fmt.Printf("Uploaded File: %+v\n", handler.Filename)
fmt.Printf("File Size: %+v\n", handler.Size)
fmt.Printf("MIME Header: %+v\n", handler.Header)
// Create a temporary file within our temp-images directory that follows
// a particular naming pattern
tempFile, err := ioutil.TempFile("temp-images", "upload-*.png")
if err != nil {
fmt.Println(err)
}
defer tempFile.Close()
// read all of the contents of our uploaded file into a
// byte array
fileBytes, err := ioutil.ReadAll(file)
if err != nil {
fmt.Println(err)
}
// write this byte array to our temporary file
tempFile.Write(fileBytes)
// return that we have successfully uploaded our file!
fmt.Fprintf(w, "Successfully Uploaded File\n")
}
func setupRoutes() {
http.HandleFunc("/upload", uploadFile)
http.ListenAndServe(":8080", nil)
}
func main() {
fmt.Println("Hello World")
setupRoutes()
}