func uploadTestFile(Client *model.Client, channelId string) ([]string, error) {
body := &bytes.Buffer{}
writer := multipart.NewWriter(body)
part, err := writer.CreateFormFile("files", "test.png")
if err != nil {
return nil, err
}
// base 64 encoded version of handtinywhite.gif from http://probablyprogramming.com/2009/03/15/the-tiniest-gif-ever
file, _ := base64.StdEncoding.DecodeString("R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=")
if _, err := io.Copy(part, bytes.NewReader(file)); err != nil {
return nil, err
}
field, err := writer.CreateFormField("channel_id")
if err != nil {
return nil, err
}
if _, err := field.Write([]byte(channelId)); err != nil {
return nil, err
}
if err := writer.Close(); err != nil {
return nil, err
}
if resp, err := Client.UploadPostAttachment(body.Bytes(), writer.FormDataContentType()); err != nil {
return nil, err
} else {
return resp.Data.(*model.FileUploadResponse).Filenames, nil
}
}
