/multipartstreamer

Primary LanguageGoMIT LicenseMIT

multipartstreamer

Package multipartstreamer helps you encode large files in MIME multipart format without reading the entire content into memory. It uses io.MultiReader to combine an inner multipart.Reader with a file handle.

package main

import (
  "github.com/technoweenie/multipartstreamer.go"
  "net/http"
)

func main() {
  ms := multipartstreamer.New()

  ms.WriteFields(map[string]string{
    "key":			"some-key",
    "AWSAccessKeyId":	"ABCDEF",
    "acl":			"some-acl",
  })

  // Add any io.Reader to the multipart.Reader.
  ms.WriteReader("file", "filename", some_ioReader, size)

  // Shortcut for adding local file.
  ms.WriteFile("file", "path/to/file")

  req, _ := http.NewRequest("POST", "someurl", nil)
  ms.SetupRequest(req)

  res, _ := http.DefaultClient.Do(req)
}

One limitation: You can only write a single file.

TODO

  • Multiple files?

Credits

Heavily inspired by James

https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/Zjg5l4nKcQ0