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package operation
import (
"bytes"
"encoding/json"
"errors"
_ "fmt"
"io"
"io/ioutil"
"log"
"mime/multipart"
"net/http"
)
type UploadResult struct {
Size int
Error string
}
func Upload(uploadUrl string, filename string, reader io.Reader) (*UploadResult, error) {
body_buf := bytes.NewBufferString("")
body_writer := multipart.NewWriter(body_buf)
file_writer, err := body_writer.CreateFormFile("file", filename)
io.Copy(file_writer, reader)
content_type := body_writer.FormDataContentType()
body_writer.Close()
resp, err := http.Post(uploadUrl, content_type, body_buf)
if err != nil {
log.Println("failing to upload to", uploadUrl)
return nil, err
}
defer resp.Body.Close()
resp_body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var ret UploadResult
err = json.Unmarshal(resp_body, &ret)
if err != nil {
log.Println("failing to read upload resonse", uploadUrl, resp_body)
return nil, err
}
if ret.Error != "" {
return nil, errors.New(ret.Error)
}
return &ret, nil
}
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