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examples
script
LICENSE
README.md
multipartstreamer.go
multipartstreamer_test.go

README.md

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