diff --git a/telegram.go b/telegram.go
index 0aabdf3..adeb105 100644
--- a/telegram.go
+++ b/telegram.go
@@ -14,18 +14,37 @@ const (
 )
 
 func (bot *Bot) request(dst []byte, method string, args *http.Args) (*Response, error) {
+	_, resp, err := http.Post(dst, fmt.Sprintf(APIEndpoint, bot.AccessToken, method), args)
+	if err != nil {
+		return nil, err
+	}
+
+	var data Response
+	if err := json.Unmarshal(resp, &data); err != nil {
+		return nil, err
+	}
+
+	if !data.Ok {
+		return &data, errors.New(data.Description)
+	}
+
+	return &data, nil
+}
+
+func (bot *Bot) upload(dst []byte, boundary, method string, args *http.Args) (*Response, error) {
 	requestURI := fmt.Sprintf(APIEndpoint, bot.AccessToken, method)
-	if args != nil {
-		requestURI += args.String()
+	if &args != nil {
+		requestURI += fmt.Sprint("?", args.String())
 	}
 
 	var req http.Request
 	var resp http.Response
 
 	req.Header.SetMethod("POST")
-	req.Header.SetContentType("application/json")
-	req.SetBody(dst)
+	req.Header.SetContentType("multipart/form-data")
+	req.Header.SetMultipartFormBoundary(boundary)
 	req.SetRequestURI(requestURI)
+	req.SetBody(dst)
 
 	if err := http.Do(&req, &resp); err != nil {
 		return nil, err
@@ -37,7 +56,7 @@ func (bot *Bot) request(dst []byte, method string, args *http.Args) (*Response,
 	}
 
 	if !data.Ok {
-		return &data, errors.New(data.Description)
+		return nil, errors.New(data.Description)
 	}
 
 	return &data, nil