package net/http
Golang net/http.Request.MultipartReader() function usage example
func uploadProgress(w http.ResponseWriter, r *http.Request) {
mr, err := r.MultipartReader()
if err != nil {
fmt.Fprintln(w, err)
return
}
length := r.ContentLength
//ticker := time.Tick(time.Millisecond) // <-- use this in production
ticker := time.Tick(time.Second) // this is for demo purpose with longer delay
for {
var read int64
var p float32
part, err := mr.NextPart()
...
see full example at https://www.socketloop.com/tutorials/golang-upload-receive-file-progress-indicator
References :
http://golang.org/pkg/net/http/#Request.MultipartReader
