From 0a7ea40b721bc94a6f0284f9efbf9986160993c8 Mon Sep 17 00:00:00 2001
From: Maxim Lebedev <git@toby3d.ru>
Date: Thu, 14 Dec 2017 12:33:44 +0500
Subject: [PATCH] :sparkles: Added SendMediaGroup method

---
 send_media_group.go | 34 ++++++++++++++++++++++++++++++++++
 types.go            |  2 ++
 2 files changed, 36 insertions(+)
 create mode 100644 send_media_group.go

diff --git a/send_media_group.go b/send_media_group.go
new file mode 100644
index 0000000..67a50d9
--- /dev/null
+++ b/send_media_group.go
@@ -0,0 +1,34 @@
+package telegram
+
+import (
+	"strconv"
+
+	json "github.com/pquerna/ffjson/ffjson"
+	http "github.com/valyala/fasthttp"
+)
+
+// SendMediaGroup send a group of photos or videos as an album. On success, an array of the sent
+// Messages is returned.
+func (bot *Bot) SendMediaGroup(chatID int64, media []InputFile, replyToMessageID int, disableNotification bool) ([]*Message, error) {
+	args := http.AcquireArgs()
+	args.Add("chat_id", strconv.FormatInt(chatID, 10))
+	args.Add("disable_notification", strconv.FormatBool(disableNotification))
+
+	if replyToMessageID != 0 {
+		args.Add("reply_to_message_id", strconv.Itoa(replyToMessageID))
+	}
+
+	dst, err := json.Marshal(media)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := bot.request(dst, "sendMediaGroup", args)
+	if err != nil {
+		return nil, err
+	}
+
+	var data []*Message
+	err = json.Unmarshal(*resp.Result, &data)
+	return data, err
+}
diff --git a/types.go b/types.go
index fb18028..9639f85 100644
--- a/types.go
+++ b/types.go
@@ -39,6 +39,8 @@ const (
 	MimePDF  = "application/pdf"
 	MimeZIP  = "application/zip"
 
+	PrefixAttach = "attach://"
+
 	StatusAdministrator = "administrator"
 	StatusCreator       = "creator"
 	StatusKicked        = "kicked"