Add support for Type and Attachments in incoming webhooks

matterhook/matterhook.go

@@ -16,11 +16,13 @@ import (
 
 // OMessage for mattermost incoming webhook. (send to mattermost)
 type OMessage struct {
-	Channel   string `json:"channel,omitempty"`
-	IconURL   string `json:"icon_url,omitempty"`
-	IconEmoji string `json:"icon_emoji,omitempty"`
-	UserName  string `json:"username,omitempty"`
-	Text      string `json:"text"`
+	Channel     string      `json:"channel,omitempty"`
+	IconURL     string      `json:"icon_url,omitempty"`
+	IconEmoji   string      `json:"icon_emoji,omitempty"`
+	UserName    string      `json:"username,omitempty"`
+	Text        string      `json:"text"`
+	Attachments interface{} `json:"attachments,omitempty"`
+	Type        string      `json:"type,omitempty"`
 }
 
 // IMessage for mattermost outgoing webhook. (received from mattermost)