Method toMultipart

plugins/jsvm/form_data.go:107–149

toMultipart converts the current FormData entries into multipart encoded data.

()

// toMultipart converts the current FormData entries into multipart encoded data.
func (data FormData) toMultipart() (*bytes.Buffer, *multipart.Writer, error) {
	body := new(bytes.Buffer)

	mp := multipart.NewWriter(body)
	defer mp.Close()

	for k, values := range data {
		for _, rawValue := range values {
			switch v := rawValue.(type) {
			case *filesystem.File:
				err := func() error {
					mpw, err := mp.CreateFormFile(k, v.OriginalName)
					if err != nil {
						return err
					}

					file, err := v.Reader.Open()
					if err != nil {
						return err
					}
					defer file.Close()

					_, err = io.Copy(mpw, file)
					if err != nil {
						return err
					}

					return nil
				}()
				if err != nil {
					return nil, nil, err
				}
			default:
				err := mp.WriteField(k, cast.ToString(v))
				if err != nil {
					return nil, nil, err
				}
			}
		}
	}

	return body, mp, nil
}